| Tweet Follow @TrueSciPhi |
| # | Twitter profile | Twitter followers | Score |
| 1. |  Katie Mack@AstroKatie (a.k.a. Dr Katherine J Mack) astrophysicist/cosmologist, occasional freelance science writer, connoisseur of airplane food Raleigh, NC astrokatie.com 9 yrs, 8 mos on Twitter | 291,717 | 72.7% |
| 2. |  Phil Plait@BadAstronomer SCIENCE! I love this stuff. My Bad Astronomy blog: syfy.com/badastronomy I use "likes" for bookmarks. No endorsement implied. • Bad Astronomy Boulder about.me/philplait 11 yrs, 9 mos on Twitter | 612,068 | 67.6% |
| 3. |  NASA@NASA Explore the universe and discover our home planet with @NASA. We usually post in EST (UTC-4) nasa.gov 11 yrs, 0 mos on Twitter | 30,186,604 | 67.0% |
| 4. |  Emily Lakdawalla@elakdawalla Senior Editor & Planetary Evangelist, The Planetary Society. Planetary scientist. Asteroid 274860. Views are my own & not those of employer. • The Design and Engineering of Cur... Pasadena, CA planetary.org/emily 10 yrs, 8 mos on Twitter | 154,044 | 66.8% |
| 5. |  Neil deGrasse Tyson@neiltyson Astrophysicist • Astrophysics for Young People in ... • Accessory to War • StarTalk Young Readers Edition New York City haydenplanetarium.org/tyson/ 9 yrs, 11 mos on Twitter | 13,086,349 | 60.1% |
| 6. |  chrislintott@chrislintott Astronomer, zookeeper and journalist, based at University of Oxford. • The Cosmic Tourist • Exploring the Mysteries of the Un... • Bang! Oxford zooniverse.org 10 yrs, 3 mos on Twitter | 29,131 | 58.2% |
| 7. |  Dr./Prof. Sarah Hörst@PlanetDr Asst Prof of Planetary Sci @JohnsHopkins and Titan evangelist. “I try not to hope and fail utterly” [email protected]nkjemisin. she/her https://t.co/KTdjavkCds Baltimore, MD, USA etsy.com/shop/PlanetDr 9 yrs, 9 mos on Twitter | 49,314 | 55.5% |
| 8. |  Sarah Kendrew@sarahkendrew Astronomer with the European Space Agency. Based at the Space Telescope Science Institute in Baltimore. Astronomy, running, bikes. Opinions my own. 🇧🇪🇬🇧 Baltimore skendrew.github.io 11 yrs, 4 mos on Twitter | 8,165 | 55.5% |
| 9. |  Barack Obama@BarackObama Dad, husband, President, citizen. Washington, DC obama.org 11 yrs, 10 mos on Twitter | 104,214,734 | 55.2% |
| 10. |  Curiosity Rover@MarsCuriosity Your friendly neighborhood NASA Mars rover. Exploring the Red Planet since 2012. Team headquartered at NASA's Jet Propulsion Laboratory 🚀 @NASAJPL Gale Crater, Mars mars.jpl.nasa.gov/msl/ 10 yrs, 6 mos on Twitter | 3,970,503 | 53.9% |
| 11. |  Astrotweeps: Admins@astrotweeps Admins • @astrotweeps • https://t.co/VbzNcTyVyG • A new astronomer/planetary scientist tweeting about space each week. The Universe astrotweeps.wordpress.com 5 yrs, 0 mos on Twitter | 9,608 | 53.6% |
| 12. |  David W Hogg@davidwhogg astronomy, cosmology, stars, exoplanets, inference, engineering, data analysis, emcee, The Cannon, Astrometry.net, The Tractor, #openscience, #otherpeoplesdata New York City dwh.gg/dwhogg 7 yrs, 9 mos on Twitter | 6,385 | 53.4% |
| 13. |  Lucianne Walkowicz@shaka_lulu Astronomer @AdlerPlanet, 5th Chair of Astrobiology @librarycongress, multimedia artist. Ethics of Mars exploration, exoplanets, social justice. Opinions my own. Chicago, IL tangledfields.com 7 yrs, 11 mos on Twitter | 13,768 | 53.1% |
| 14. |  Sarah Tuttle@niais Astrophysicist. We're not going to be shady, just fierce. Professor. Rudderless Conan w/ magic powers you don’t quite understand. 100% problematic. She/they. Here, I guess. 11 yrs, 0 mos on Twitter | 11,851 | 52.8% |
| 15. |  Julianne Dalcanton@dalcantonJD Astrophysicist at the University of Washington. Principal Investigator of the Panchromatic Hubble Andromeda Treasury (PHAT). 7 yrs, 0 mos on Twitter | 6,649 | 52.8% |
| 16. |  AstroBetter@astrobetter Blog and Wiki for professional astronomers. astrobetter.com 9 yrs, 9 mos on Twitter | 5,015 | 52.3% |
| 17. |  astrobites@astrobites Digestible summaries of the latest research in astrophysics, written by graduate students. Astrobites is supported by the American Astronomical Society. All over the world astrobites.org 8 yrs, 0 mos on Twitter | 8,263 | 51.2% |
| 18. |  Astronomy Picture Of The Day@apod Each day a different image of our universe along with a brief explanation. For issues with this account contact @astronomyblog otherwise apod.nasa.gov/apod/lib/apsub… Earth apod.nasa.gov/apod/astropix.… 11 yrs, 4 mos on Twitter | 1,288,537 | 50.9% |
| 19. |  Maria Womack@StarzanPlanets Astrophysicist & planetary scientist, USF Professor #teamcomet #astrochemistry #scipolicy #climatechange #planetarydefense Contains no pseudoscience mariawomack.com 9 yrs, 5 mos on Twitter | 4,416 | 50.4% |
| 20. |  Bryan Gaensler 📡🧲@SciBry Astronomer, Professor, Director of @DunlapInstitute at @UofT. Sci-fi connoisseur, rugby league tragic, displaced Antipodean, bewildered parent. Opinions ∉ @UofT • Extreme Cosmos Toronto, Canada bryangaensler.net 9 yrs, 5 mos on Twitter | 9,087 | 49.9% |
| 21. |  SpaceX@SpaceX SpaceX designs, manufactures and launches the world’s most advanced rockets and spacecraft Hawthorne, CA spacex.com 9 yrs, 8 mos on Twitter | 7,795,941 | 49.6% |
| 22. |  Jonathan McDowell@planet4589 I'm an astronomer at the Harvard-Smithsonian Center for Astrophysics, working on Chandra and quasars, and commenting on space launches and space activities. Somerville, MA, USA planet4589.org 9 yrs, 11 mos on Twitter | 26,641 | 49.3% |
| 23. |  Brian Cox@ProfBrianCox Touring the world in 2019, mainly talking about cosmology, quantum mechanics, black holes and the value of our civilisation. The Earth, with everyone else apolloschildren.com 10 yrs, 1 mo on Twitter | 2,845,678 | 49.1% |
| 24. |  Prof. Karen Masters 💫⭐️✨@KarenLMasters Professor of astrophysics @haverfordedu. Investigating galaxies with @GalaxyZoo @SDSSurveys. Touch a galaxy @TactileUniverse. Mostly tweeting astronomy. British Ardmore, PA klmasters.sites.haverford.edu 9 yrs, 10 mos on Twitter | 7,752 | 49.1% |
| 25. |  Dr./Prof. Renée Hložek@reneehlozek South African cisgender, bisexual woman Assistant Prof. of Astrophysics, Rhodes scholar (and lover of loud karaoke), Senior TED Fellow. Feminist scientist. Toronto, Ontario reneehlozek.com 9 yrs, 5 mos on Twitter | 5,433 | 48.8% |
| 26. |  ESA@esa European Space Agency, keeping you posted on European space activities. Europe esa.int 9 yrs, 10 mos on Twitter | 915,580 | 48.3% |
| 27. |  ★ dr amanda bauer ★@astropixie Head of Education & Public Outreach for LSST. Music creator. Co-host of #CosmicVertigo space podcast abc.net.au/radionational/… Tucson, AZ amandabauer.blogspot.com 10 yrs, 10 mos on Twitter | 9,652 | 48.3% |
| 28. |  NASA JPL@NASAJPL NASA Jet Propulsion Laboratory manages many of NASA's robotic missions exploring Earth, the solar system and our universe. Tweets from JPL's News Office. Pasadena, Calif. jpl.nasa.gov 9 yrs, 11 mos on Twitter | 2,745,436 | 47.7% |
| 29. |  Sean Carroll@seanmcarroll Physicist at Caltech. Author of The Big Picture and other books. Host of #MindscapePodcast. Married to @JenLucPiquant. In favor of truth and kindness. Los Angeles preposterousuniverse.com 9 yrs, 10 mos on Twitter | 226,956 | 47.7% |
| 30. |  Molly Peeples@astronomolly Astronomer in the Science Policies Group @STScI playing with galaxies & gas, real & fake. #Hubble, #JWST, #WFIRST pay the bills; opinions are my own. She/her. Baltimore, MD, z=0 molly.science 6 yrs, 3 mos on Twitter | 7,498 | 47.5% |
| 31. |  Mike Brown@plutokiller Astronomer, planet hunter, Pluto killer, bear whisperer, Finger-wrapped dad. Dangerous secularist. • How I Killed Pluto and Why It Had... Pasadena, CA mikebrownsplanets.com 9 yrs, 9 mos on Twitter | 63,443 | 46.9% |
| 32. |  Alex Parker@Alex_Parker Planetary astronomer and artist exploring the origin and history of our solar system. Director of @ESPRESSO_SSERVI. If in doubt, I could probably laser it. Boulder, Colorado alexharrisonparker.com 10 yrs, 0 mos on Twitter | 28,110 | 46.9% |
| 33. |  Kelle Cruz@kellecruz Astronomy Prof at @Hunter_College, @AMNH, and #BDNYC. Liveable streets. @Spurs. Founder, editor of @AstroBetter & CEO of @ScienceBetter. Coordinator of @Astropy New York, NY astrobetter.com 9 yrs, 11 mos on Twitter | 4,965 | 46.9% |
| 34. |  Fraser Cain@fcain Publisher of universetoday.com, co-host of astronomycast.com. Named after Asteroid 158092. Courtenay, British Columbia about.me/frasercain 11 yrs, 10 mos on Twitter | 39,491 | 46.6% |
| 35. |  Meg Urry@Meg_Urry Yale physics prof, likes supermassive black holes, teaching, writing, increasing participation in STEM, my family Yale University urrylab.yale.edu 7 yrs, 2 mos on Twitter | 4,332 | 45.6% |
| 36. |  MC Stardust ✨ Inclusion Rider 4 Life@Summer_Ash Astrophysicist by day and all around rock-it scientist whenever I get my act together. Tweets are my own opinions. Intersectional or GTFO. 1/2 of @startorialist Moon/New York City summerash.com 8 yrs, 9 mos on Twitter | 12,634 | 45.3% |
| 37. |  Dr. Jessie Christiansen@aussiastronomer NASA Research Scientist | #exoplaneteer | #WomenInStem advocate | Science curator at @NASAExoArchive | Usual nerd grab-bag of fandoms | She/her Caltech, Pasadena, CA, USA spider.ipac.caltech.edu/staff/christia/ 5 yrs, 0 mos on Twitter | 7,710 | 45.3% |
| 38. |  Alyssa A. Goodman@AlyssaAGoodman Astronomy Professor at Harvard, CoDirector of Science at Radcliffe Institute. Loves data, visualization, Universe, education, people. Not in that order. Massachusetts cfa.harvard.edu/~agoodman 9 yrs, 11 mos on Twitter | 3,678 | 45.0% |
| 39. |  Prof. Emily Rice, Ph.D.@emilylurice Astronomer at @csinews, @GC_CUNY, @AMNH, #BDNYC, & #CUNYAstro; @AstronomyOnTap organizer, 1/2 of @startorialist, & @knitted_bd host ⭐️. Not @djcarlysagan 😜 Occupied Lunaape Land (NYC) emilylrice.me 11 yrs, 4 mos on Twitter | 5,155 | 44.8% |
| 40. |  Brooke Simmons@vrooje Distracted astrophysicist researching galaxies & black holes; on @galaxyzoo & @the_zooniverse teams. Also planetaryresponsenetwork.org lead. (She/her) San Diego, CA vrooje.github.io 10 yrs, 4 mos on Twitter | 6,163 | 44.5% |
| 41. |  Brian Schmidt@cosmicpinot An overly busy Cosmologist who is Vice Chancellor of the ANU, Wine maker, Dad & Husband. 2011 Nobel Laureate in Physics Canberra Australia msowww.anu.edu.au/~brian 9 yrs, 1 mo on Twitter | 23,585 | 44.0% |
| 42. |  Michele Bannister@astrokiwi Planetary astronomer, poet, hunter of new and strange worlds. Connoisseur of fuzzy dots of light. Asteroid (10463). Postdoctoral Research Fellow @AstroQUB. living the life non-sidereal astro.uvic.ca/~micheleb/ 9 yrs, 10 mos on Twitter | 7,900 | 43.7% |
| 43. |  Elon Musk@elonmusk 9 yrs, 7 mos on Twitter | 24,195,416 | 43.4% |
| 44. |  Prof. Abel Méndez@ProfAbelMendez Planetary Astrobiologist and Director of the @PlanetaryHabLab. Looking at habitable worlds from the Arecibo Observatory. #exoplanets #astrobiology #habitability • Searching for Habitable Worlds Arecibo, Puerto Rico phl.upr.edu 9 yrs, 2 mos on Twitter | 14,273 | 43.4% |
| 45. |  Catherine Q.@CatherineQ Astrophysicist, science communicator, over-thinker. One of @HuffPostscience Top 30 Physicists to follow. Autoimmune illness girl. Nomadic Kiwi. Dogs rule. New Zealand CatherineQ.com 9 yrs, 10 mos on Twitter | 40,876 | 43.2% |
| 46. |  Alessondra Springmann@sondy asteroids, comets, sounding rockets, @AreciboRadar/🇵🇷 love, cacti, geology, autoimmune disease, puns, cat herding, rants, 小惑星レーダー天文学者, she/her Chukson / Tucson, AZ sondy.com 8 yrs, 8 mos on Twitter | 7,575 | 43.2% |
| 47. |  NASA Kepler and K2@NASAKepler Launched in March 2009, Kepler is NASA's first spacecraft to detect Earth-size planets in the just-right Goldilocks habitable zone of other stars. Trailing Earth around the Sun nasa.gov/kepler 10 yrs, 1 mo on Twitter | 623,419 | 42.9% |
| 48. |  ESO@ESO The European Southern Observatory is the most productive observatory in the world. We design, build & operate some of the most advanced telescopes in the world. Garching, Germany eso.org 10 yrs, 5 mos on Twitter | 80,098 | 42.6% |
| 49. |  Dr Pamela L Gay@starstryder Communicating astronomy & life 1 sidereal day at a time. All opinions & ideas are my own. Support my on Patreon.com/starstryder or paypal.me/starstryder. Edwardsville, IL starstryder.com 10 yrs, 11 mos on Twitter | 39,309 | 42.6% |
| 50. |  SarcasticRover@SarcasticRover Doing a science on the red planet. Not @MarsCuriosity. Portrait by @badportraits. Written by @jfiliatrault. 4th Rock From the Sun 6 yrs, 5 mos on Twitter | 979,627 | 41.8% |
| 51. |  NASA Webb Telescope@NASAWebb NASA's James Webb Space Telescope will give us an amazing look at the universe! It will launch in 2021. RT, likes, and/or @mentions do not imply endorsement. Greenbelt, Maryland jwst.nasa.gov 9 yrs, 9 mos on Twitter | 396,205 | 41.8% |
| 52. |  Dr Rachael Livermore@rclivermore Astrophysicist | Science Communicator. Videos of my public talks at bit.ly/SciTalks London, England rlivermore.com 10 yrs, 6 mos on Twitter | 6,073 | 41.8% |
| 53. |  Dr. Tanya Harrison@tanyaofmars 🇨🇦 Professional Martian 🛰 Director of Research @asunewspace 💫 Web Editor @exploreplanets 🔴 Current/former ops team @[email protected]+MRO Toronto / Phoenix tanyaofmars.com 9 yrs, 10 mos on Twitter | 23,258 | 41.6% |
| 54. |  Prof. Nicole Gugliucci, Doctor of the Sky@NoisyAstronomer Professor, astronomer, education researcher, science communicator, advocate for equity in STEM. Geek, crossfitter, dog mom. She/her. 💙💜💖 Tweets my own, etc New Hampshire, USA noisyastronomer.com 10 yrs, 7 mos on Twitter | 20,856 | 41.6% |
| 55. |  CassiniSaturn@CassiniSaturn Our spacecraft is gone, but the science continues. Join us at @NASASolarSystem for the latest. Saturn, Solar System solarsystem.nasa.gov/cassini 10 yrs, 6 mos on Twitter | 1,637,289 | 41.3% |
| 56. |  NewHorizons2015@NewHorizons2015 The First Space Mission to Explore Planet Pluto--Ride Along Via Principal Investigator Alan Stern's Private New Horizons Twitter Feed. Follow Stern @AlanStern Deeeeep Space 10 yrs, 5 mos on Twitter | 291,006 | 41.3% |
| 57. |  David Spergel@DavidSpergel Astrophysicist at Princeton University and Flatiron Institute Princeton NJ astro.princeton.edu/~dns 5 yrs, 0 mos on Twitter | 5,180 | 40.8% |
| 58. |  Peter Edmonds@PeterDEdmonds Work in astronomy publicity after surviving an astrophysics PhD & postdocs. Interested in science & scicomm. Opinions are mine & RTs aren't always endorsements. peterdedmonds.blogspot.com 7 yrs, 0 mos on Twitter | 4,090 | 40.8% |
| 59. |  Chanda Prescod-Weinstein 🙅🏽♀️ 🇧🇧🌈@IBJIYONGI #BlackandSTEM Prof of Particle Physics&Cosmology, feminist #STS/#HistSTM. agender cissex woman, tweets by/for me only. #DisorderedCosmos coming @BoldTypeBooks! Portsmouth/Cambridge/Wakanda cprescodweinstein.com 10 yrs, 7 mos on Twitter | 45,537 | 40.5% |
| 60. |  Dr JJ Eldridge@astro_jje NZ theoretical astrophysicist studying exploding binary stars. Lecturer, Speaker, Sci-fi addict, feminist, non-binary trans empress. Pronouns: them/they/she • The Lives and Death-Throes of Mas... Auckland, New Zealand jjeldridge.blogs.auckland.ac.nz 5 yrs, 8 mos on Twitter | 4,299 | 40.5% |
| 61. |  NASA's Juno Mission@NASAJuno Exploring Jupiter to improve our understanding of the planet's origins and the formation of planetary systems. missionjuno.org nasa.gov/juno Jupiter 9 yrs, 11 mos on Twitter | 732,667 | 40.2% |
| 62. |  NASA New Horizons@NASANewHorizons The New Horizons spacecraft flew past the dwarf planet Pluto and its moons in July 2015. Next up is a New Year's 2019 flyby of Kuiper Belt object Ultima Thule. Solar System nasa.gov/mission_pages/… 4 yrs, 5 mos on Twitter | 385,137 | 40.2% |
| 63. |  Sarah Ballard@hubbahubble Habitable worlds, kindness, fiction, etc. At ~75 km/s*Mpc! One half of @drssarahcare Cambridge, MA space.mit.edu/~sarahba 4 yrs, 11 mos on Twitter | 3,252 | 40.2% |
| 64. |  ESA Rosetta Mission@ESA_Rosetta ESA spacecraft that studied Comet 67P/Churyumov-Gerasimenko & sent @philae2014 to its surface. Mission completed 30 Sep 2016. Follow @esascience for latest news rosetta.esa.int 5 yrs, 7 mos on Twitter until last tweet (2016-Sep-30) | 475,217 | 39.7% |
| 65. |  Meg Schwamb@megschwamb Planetary scientist, astronomer, Gemini North assistant scientist: KBOs, Planet Four(Mars), MBCs(Comet Hunters),LSST SSSC co-chair. Opinions tweeted are my own Hilo, HI megschwamb.com 8 yrs, 8 mos on Twitter | 4,541 | 39.7% |
| 66. |  David Charbonneau@ExoCharbonneau Exoplaneteer and Professor of Astronomy at Harvard. Girl Scout leader, hockey coach, and proud father of four daughters and future presidents. Harvard University cfa.harvard.edu/~dcharbon/Site… 5 yrs, 0 mos on Twitter | 3,211 | 39.7% |
| 67. |  John Asher Johnson@astrojohnjohn Sayer of words, typist of things, one who professes professionally, figurer of things out, player of basketball, abuser of language. Views expressed r mine • How Do You Find an Exoplanet? (Pr... Cambridge, MA mahalonottrash.blogspot.com/2015/05/i-am-o… 5 yrs, 11 mos on Twitter | 2,329 | 39.7% |
| 68. |  Chris Hadfield@Cmdr_Hadfield Canadian Astronaut, back on Earth after 3 spaceflights. For events and media, please write to [email protected] Earth chrishadfield.ca 8 yrs, 4 mos on Twitter | 2,396,322 | 39.4% |
| 69. |  ESA Science@esascience Science @ the European Space Agency ESA, keeping you posted on European space science activities. Noordwijk, The Netherlands esa.int/science 9 yrs, 0 mos on Twitter | 303,200 | 39.4% |
| 70. |  BenneHolwerda@BenneHolwerda Astronomer at large (mostly harmless). University of Louisville. Opinions & typos obv my own. Louisville, KY 10 yrs, 6 mos on Twitter | 1,866 | 39.4% |
| 71. |  Planetary Society@exploreplanets Citizen-powered #space exploration led by CEO @BillNye. Join us. Pasadena, CA planetary.org 8 yrs, 3 mos on Twitter | 188,224 | 39.1% |
| 72. |  Hubble@NASAHubble The official Twitter account for the NASA Hubble Space Telescope, managed and operated by NASA's Goddard Space Flight Center. Goddard Space Flight Center nasa.gov/mission_pages/… 10 yrs, 10 mos on Twitter | 6,074,030 | 38.3% |
| 73. |  Bill Nye@BillNye represent.com/billnye 9 yrs, 8 mos on Twitter | 5,790,520 | 38.3% |
| 74. |  The SETI Institute@SETIInstitute We believe we are conducting the most profound search in human history — to know our beginnings and our place among the stars. Mountain View, CA seti.org 9 yrs, 8 mos on Twitter | 680,382 | 38.1% |
| 75. |  Nature News & Comment@NatureNews Science news & opinion from the news team at Nature, the international journal of #science. Get our daily newsletter: go.nature.com/naturebriefing Worldwide nature.com/news 10 yrs, 5 mos on Twitter | 1,887,731 | 37.8% |
| 76. |  Risa Wechsler@RisaWechsler astrophysicist. cosmologist. maker of universes and various kinds of trouble. professor of physics @stanford and director of @kipac1 San Francisco risawechsler.com 6 yrs, 4 mos on Twitter | 4,327 | 37.8% |
| 77. |  Nadia Drake@nadiamdrake Contributing writer @natgeo. Former ballet dancer. Slightly obsessed with planets (and MOONS), supernovas and spiders. Champagneophile. 8 yrs, 3 mos on Twitter | 25,736 | 37.5% |
| 78. |  Jedidah Isler, PhD@JedidahIslerPhD Astrophysicist / Professor / Relentless Dreamer / Innovator / Founder & Host @VanguardSTEM / Senior @TEDFellow / @NatGeo Explorer JedidahIslerPhD.com 8 yrs, 5 mos on Twitter | 13,871 | 37.5% |
| 79. |  Alberto Conti@albertoconti Astrophysicist & Director of New Business at Ball Aerospace - Tweets are my own, at least in this multiverse. en.wikipedia.org/wiki/Alberto_C… Colorado, USA en.m.wikipedia.org/wiki/Alberto_C… 10 yrs, 6 mos on Twitter | 3,518 | 37.5% |
| 80. |  Dr Chiara Mingarelli@Dr_CMingarelli Gravitational-wave astrophysicist. Flatiron Research Fellow at @FlatironCCA. Previously @Caltech, @NASAJPL, and MPIfR. Views my own. New York, NY chiaramingarelli.com 7 yrs, 10 mos on Twitter | 6,264 | 37.3% |
| 81. |  Mika McKinnon@mikamckinnon Field geophysicist, disaster researcher, scifi science consultant, science writer, public speaker, irrepressibly curious. West Coast about.me/mikamckinnon 9 yrs, 7 mos on Twitter | 30,927 | 37.0% |
| 82. |  Matthew R Francis@DrMRFrancis Writer of physics and astronomy. Wearer of jaunty hats. Tryin' to publish a novel. Proud Rebel scum. Avatar by @ScienceComic . He/him. Cleveland, OH bowlerhatscience.org 8 yrs, 4 mos on Twitter | 17,340 | 37.0% |
| 83. |  Philae Lander@Philae2014 On 12 November 2014 I landed on comet #67P as part of @ESA_Rosetta. I am operated by @DLR_en's Lander Control Center LCC in Cologne. Interplanetary Space dlr.de/en/rosetta 8 yrs, 2 mos on Twitter | 398,705 | 36.7% |
| 84. |  Shit Academics Say@AcademicsSay A social experiment | @prof_nch chronicle.com/article/Academ… 5 yrs, 3 mos on Twitter | 301,766 | 36.7% |
| 85. |  Alexandra Witze@alexwitze Correspondent for Nature, views my own. Reach me (generally) witzescience-at-gmaildotcom or (securely) awitze-at-protonmaildotcom. Boulder, CO lakithebook.com 9 yrs, 10 mos on Twitter | 19,787 | 36.7% |
| 86. |  Nature Astronomy@NatureAstronomy A Nature journal dedicated to presenting the very best research across the disciplines of astronomy, astrophysics, cosmology and planetary science.📡 London, England nature.com/natastron/ 3 yrs, 3 mos on Twitter | 16,795 | 36.7% |
| 87. |  STARtorialist@startorialist Where science meets fashion and scientists get FABULOUS! Blog & pop-up shop by professional astronomers @Summer_Ash & @emilylurice. Goal for 2019: online shop! The Universe startorialist.com 5 yrs, 1 mo on Twitter | 4,187 | 36.7% |
| 88. |  Dr. Christina Richey@PlanSciCRichey Planetary Scientist/Astrophysicist, fighter 4 inclusion in STEM, love/hate relationship w/ workouts, wine drinker, making my mom 😊; views are my own. they/them Los Angeles, CA christinarichey.com 3 yrs, 4 mos on Twitter | 2,425 | 36.7% |
| 89. |  Anna Frebel@annafrebel Astronomer & stellar archaeologist searching for the oldest stars in the universe (yes, they are 12-13 billion yrs old!); also professor at MIT & author • Searching for the Oldest Stars • New Horizons in Astronomy Cambridge, MA, USA annafrebel.com 5 yrs, 7 mos on Twitter | 12,924 | 36.2% |
| 90. |  Dr Anna Watts@drannawatts Associate Professor of Astrophysics @ Univ. of Amsterdam. Neutron stars (explosions, dense matter), X-ray astronomy. Mom, Migrant. Particles in stars blah blah. Amsterdam staff.fnwi.uva.nl/a.l.watts/ 4 yrs, 7 mos on Twitter | 3,646 | 35.9% |
| 91. |  Karin Sandstrom@karinsandstrom Assistant professor of astronomy and physics. Lover of coffee, interstellar dust, California, nerdy stuff. Originally from SW Washington. San Diego, CA karinsandstrom.github.io 9 yrs, 9 mos on Twitter | 2,657 | 35.9% |
| 92. |  Grant Tremblay@astrogrant Astrophysicist at the Center for Astrophysics | Harvard & Smithsonian. Previously @NASA Einstein Fellow @Yale, Fellow @ESO, & SDAS regular @STScI. Views my own. Cambridge, MA granttremblay.com 9 yrs, 10 mos on Twitter | 2,541 | 35.9% |
| 93. |  Ed Yong@edyong209 Science writer at The Atlantic. Author of I CONTAIN MULTITUDES, a New York Times bestseller on animal-microbe partnerships. edyong.me Washington, DC theatlantic.com/author/ed-yong/ 9 yrs, 11 mos on Twitter | 151,141 | 35.7% |
| 94. |  Sophia Gad-Nasr 🏳️🌈@Astropartigirl Astroparticle physicist working on dark matter. PhD student @UCIrvine. Feminist. Captivating the world w/ physics, one particle at a time. And w/ hamsters. 🐶|Los Angeles〉+ 🐹|Irvine〉 astropartigirl.com 8 yrs, 8 mos on Twitter | 21,066 | 35.4% |
| 95. |  Universe Today@universetoday Universe Today - universetoday.com, a website about space and astronomy. Tweets are probably coming from @fcain Courtenay, British Columbia universetoday.com 9 yrs, 10 mos on Twitter | 286,897 | 35.1% |
| 96. |  Lucy/ @RealScientists@realscientists Real science from real scientists, writers, communicators, artists & clinicians. This week: LUCY SMITH| Stem Cells Research | @Lucy_Smith_13 Everywhere realscientists.org 5 yrs, 11 mos on Twitter | 70,507 | 34.9% |
| 97. |  Dr Jane MacArthur@Jane_MacArthur Planetary scientist @UniOfLeicester studying martian meteorites & comet dust. Writer @PopAstro. Fellow @RoyalAstroSoc #RAS200 #Violinist Mars janemac.org 9 yrs, 11 mos on Twitter | 7,198 | 34.9% |
| 98. |  Jane Rigby@janerrigby Astronomer @nasa studying black holes & galaxies w/ telescopes around world & in space, helping build @NASAWebb. Queer parent scientist UU activist. Views mine. DC Metro janerigby.net 8 yrs, 0 mos on Twitter | 4,848 | 34.9% |
| 99. |  Geert Barentsen@GeertHub NASA Astronomer in Silicon Valley. Leads the wonderful @KeplerGO team at @NASAAmes. Belgian (like waffles). #KeplerMission #K2Mission Mountain View, CA geert.io 9 yrs, 7 mos on Twitter | 3,208 | 34.9% |
| 100. |  Thomas Robitaille@astrofrog Freelance, software developer, lead developer of Glue, co-ordinator for the Astropy project, software Editor for AAS Publishing, open development advocate. United Kingdom thomasrobitaille.com 9 yrs, 9 mos on Twitter | 2,294 | 34.9% |
| 101. |  Josh Peek@jegpeek Principal Investigator @MAST_News. Data Science and astronomy at @stsci and JHU. Statements do not reflect the position of any employer, obvi. Baltimore stsci.edu/~jegpeek/ 9 yrs, 11 mos on Twitter | 1,265 | 34.9% |
| 102. |  NASA Goddard@NASAGoddard Tweeting the best in astrophysics, Earth sciences, engineering, robotic exploration, Sun science, and technology for NASA's Goddard Space Flight Center. Greenbelt, MD USA nasa.gov/goddard 9 yrs, 11 mos on Twitter | 505,375 | 34.6% |
| 103. |  Robert McNees@mcnees Professor, physicist, sci comm. Black holes, quantum gravity, cosmology. Tar Heel. RT = spooky action at a distance. Opinions are mine alone. Chicago, z=0 jacobi.luc.edu 10 yrs, 7 mos on Twitter | 12,807 | 34.6% |
| 104. |  Kevin Schawinski@kevinschawinski Co-founder/CEO @modulos_ai Zurich, Switzerland modulos.ai 7 yrs, 11 mos on Twitter | 4,532 | 34.6% |
| 105. |  Prof. Lisa Harvey-Smith@lisaharveysmith Astrophysicist, Australia’s Women in STEM Ambassador, Author #WhenGalaxiesCollide, TEDx Speaker, Presenter, @ABCTV Stargazing Live. Australia lisaharveysmith.com 7 yrs, 2 mos on Twitter | 16,065 | 34.3% |
| 106. |  Dr. Jennifer L. Hoffman ✨@astroprofhoff Astronomer, associate professor, alto, auntie, ailurophile. University of Denver • Stellar Polimetry Denver, CO grammai.org/jhoffman/ 5 yrs, 0 mos on Twitter | 2,781 | 34.3% |
| 107. |  Dr Michelle Collins@michelle_lmc Astrophysicist working on Local Group galaxies. Soft spot for Andromeda. Keen runner. All views my own. RT != endorsement Guildford, England therunningastronomer.com 9 yrs, 8 mos on Twitter | 1,717 | 34.0% |
| 108. |  Alan Stern@AlanStern Scientist. Space Explorer. Author. Speaker, Optimist. Pilot. Dad. Not necessarily in that order. Follow my New Horizons Twitter feed @NewHorizons2015. • Chasing New Horizons • Pluto and Charon • Worlds Beyond Niwot, CO alanstern.space 10 yrs, 5 mos on Twitter | 35,990 | 33.8% |
| 109. |  ESA Gaia@ESAGaia Science with 1 billion objects in three dimensions ESA cosmos.esa.int/gaia 9 yrs, 10 mos on Twitter | 20,060 | 33.8% |
| 110. |  Lee Billings@LeeBillings Science journalist covering space and physics for @sciam. Author of Five Billion Years of Solitude, a book on the search for alien Earths. Opinions are my own. New York City leebillings.com 9 yrs, 8 mos on Twitter | 8,128 | 33.8% |
| 111. |  David Grinspoon@DrFunkySpoon Astrobiologist, Author, Musician. New book CHASING NEW HORIZONS: Inside the Epic First Mission to Pluto. • Chasing New Horizons • Earth in Human Hands • Towards Understanding the Climate... Biosphere One funkyscience.net 7 yrs, 3 mos on Twitter | 22,967 | 33.5% |
| 112. |  Peter Coles 🌈 🇪🇺 🇮🇪@telescoper Theoretical astrophysicist specialising in the Universe and all that surrounds it. Also into jazz, opera, poetry & crosswords. Beard of the Year 2018. #FBPE • The Routledge Companion to the Ne... • From Cosmos to Chaos • Cosmology Maynooth, Co Kildare, Ireland telescoper.wordpress.com 9 yrs, 3 mos on Twitter | 5,773 | 33.5% |
| 113. |  Dan F-M@exoplaneteer I write code for good & astrophysics. NYC dfm.io 7 yrs, 5 mos on Twitter | 2,626 | 33.5% |
| 114. |  Royal Astronomical Society@RoyalAstroSoc The RAS is a learned society representing astronomers and geophysicists in the UK & worldwide. Tweets by @RobertMMassey, @MorganDJHollis, & @DrHelenKlus. Burlington House, London ras.ac.uk 8 yrs, 10 mos on Twitter | 28,631 | 33.2% |
| 115. |  Alan Duffy@astroduff A/Professor in Astrophysics at @Swinburne and Lead Scientist of @RiAus Instagram.com/profalanduffy Melbourne alanrduffy.com 6 yrs, 6 mos on Twitter | 20,086 | 33.2% |
| 116. |  Jason Wright@Astro_Wright Associate Professor of Astronomy and Astrophysics at Penn State. Son, husband, father, scientist, teacher, student, human. Mostly posting astronomy. State College, PA, USA sites.psu.edu/astrowright/ 6 yrs, 3 mos on Twitter | 5,967 | 33.2% |
| 117. |  Carolyn Porco@carolynporco Cassini imaging lead. Visiting Scholar UC Berkeley. National Geographic Eliza Scidmore awardee. I think. I speak. I write. Opinions are my own. CA carolynporco.com 9 yrs, 5 mos on Twitter | 62,336 | 33.0% |
| 118. |  Marc Kuchner@marckuchner PI of Citizen Science projects backyardworlds.org, diskdetective.org, Astrophysicist, Songwriter. • Marketing for Scientists Greenbelt, MD marketingforscientists.com 10 yrs, 1 mo on Twitter | 5,739 | 33.0% |
| 119. |  Meredith Rawls@merrdiff Stellar astronomer and data management for @LSST. Also: mom, scicommer, violist, Episcopalian. Less nighttime blue light, more 24/7 equity. Keep looking up. Seattle, WA faculty.washington.edu/mrawls 8 yrs, 10 mos on Twitter | 5,050 | 33.0% |
| 120. |  Dr. Phil Metzger@DrPhiltill Planetary scientist at @UCF. CoFounder NASA KSC SwampWorks. Space Mining. Space Settlement. Science. Orlando, FL philipmetzger.com 6 yrs, 1 mo on Twitter | 72,330 | 32.7% |
| 121. |  Astro Union@IAU_org Founded in 1919, the International Astronomical Union (IAU) promotes and safeguards the science of astronomy through international cooperation. iau.org 4 yrs, 7 mos on Twitter | 6,973 | 32.7% |
| 122. |  Elisabeth Newton@EllieInSpace NSF postdoc and stellar physicist @MIT with a passion for education and #scicomm. Also a climber, baker, crafter & @astrobites co-founder. Cambridge, MA. mit.edu/~ernewton 7 yrs, 7 mos on Twitter | 2,208 | 32.7% |
| 123. |  New Scientist@newscientist The best place to find out what’s new in science – and why it matters. To subscribe go to: https://t.co/M4DdnmRv4N Worldwide newscientist.com 9 yrs, 11 mos on Twitter | 3,407,595 | 32.4% |
| 124. |  Amber Straughn@astraughnomer Arkansas native & @NASA astrophysicist. Climate change is real. Pilot, yogini, homebrewer, Great Dane mom, @PearlJam fan, Razorback 🏈 fan, #FirstGen Tweets mine Lukin's amberstraughn.com 7 yrs, 8 mos on Twitter | 13,461 | 32.4% |
| 125. |  Jessica Kirkpatrick@berkeleyjess Jessica Ann Kirkpatrick, Astrophysicist → Data Scientist #scientist #techie #runner #feminist #writer #catmom #dogstepmom San Francisco, CA berkeleyjess.blogspot.com 9 yrs, 6 mos on Twitter | 4,970 | 32.4% |
| 126. |  David Kipping@david_kipping Exoplanets & Exomoons, Columbia University, Cool Worlds Lab. RTs ≠ endorsements • The Transits of Extrasolar Planet... Manhattan, NY coolworlds.astro.columbia.edu 9 yrs, 10 mos on Twitter | 3,658 | 32.4% |
| 127. |  Emily Levesque ✨🔭@emsque Astronomer, author, bizarre star enthusiast, telescope story collector. || The real exciting sound in science is not "Eureka!", it's "huh, that's weird..." • Understanding Stellar Evolution • Astrophysics of Red Supergiants Seattle, WA emlevesque.com 8 yrs, 11 mos on Twitter | 2,542 | 32.4% |
| 128. |  Adam Burgasser@browndwarfs astrophysicist, professor, and preferably in the water. on a plane, or San Diego pono.ucsd.edu/~adam 8 yrs, 5 mos on Twitter | 1,857 | 32.4% |
| 129. |  Ethan Siegel@StartsWithABang The Universe is: Expanding, cooling, and dark. It starts with a bang! #Cosmology Science writer, astrophysicist, author, Forbes & NASA columnist. • Treknology • Beyond the Galaxy Portland, OR forbes.com/sites/startswi… 7 yrs, 9 mos on Twitter | 13,020 | 32.2% |
| 130. |  Jackie Faherty@jfaherty Astrophysicist at @AMNH. Enthusiast for bringing the cosmos to the public @backyardworlds #womeninscience #BDNYC #manhattanhenge calculator. #scicomm jackiefaherty.com 9 yrs, 10 mos on Twitter | 4,498 | 32.2% |
| 131. |  Johanna@johannateske Astronomer, runner, educator, feminist, vegan, #Nats fan, she/her/hers Pasadena, CA johannateske.virb.com 5 yrs, 0 mos on Twitter | 2,189 | 32.2% |
| 132. |  CERN@CERN #CERN, the European Organization for Nuclear Research, is the world's largest particle physics lab, home of the #LHC. French: @CERN_FR Geneva home.cern 10 yrs, 6 mos on Twitter | 2,556,228 | 31.9% |
| 133. |  Robert Simpson@orbitingfrog Googler, astronomer, TED Fellow. Views are my own. UK orbitingfrog.com 11 yrs, 9 mos on Twitter | 31,372 | 31.9% |
| 134. |  Haley Gomez@astrofairy I'm an Astrophysicist, love books, films astronomy, shoes and dresses. Cardiff haley.gomez.me.uk 9 yrs, 1 mo on Twitter | 3,011 | 31.9% |
| 135. |  James Davenport@jradavenport Astronomy PhD, [v/b]logger, casual data analyst, Seattleite. All opinions are my own. jradavenport.github.io 6 yrs, 8 mos on Twitter | 2,342 | 31.9% |
| 136. |  Caitlin Casey@astrocaits Astronomer and Assistant Professor at the University of Texas at Austin. Austin, TX as.utexas.edu/~cmcasey 4 yrs, 11 mos on Twitter | 2,045 | 31.9% |
| 137. |  LIGO@LIGO Official Twitter of the LIGO Scientific Collaboration. We detect gravitational waves! YouTube: youtube.com/ligovirgo Livingston, LA and Hanford, WA ligo.org 10 yrs, 7 mos on Twitter | 83,582 | 31.6% |
| 138. |  Prof. Lucie Green@Dr_Lucie Royal Society University Research Fellow, Professor of Physics at UCL. Staring at the Sun & beyond. Chief Stargazer @popastro. 1st book: amzn.to/2nitfmi UK luciegreen.com 8 yrs, 7 mos on Twitter | 20,062 | 31.6% |
| 139. |  Emily Petroff@ebpetroff Astronomer. Reader. Random number generator. I study things that go bang. 📡💥 Veni Fellow studying fast radio bursts at the University of Amsterdam in the API. The Netherlands ebpetroff.com 5 yrs, 6 mos on Twitter | 5,137 | 31.6% |
| 140. |  Becky Smethurst@drbecky_ Astrophysicist researching how black holes affect galaxies. I make space and science videos on YouTube. Enthusiasm reigns here! youtube.com/drbecky Oxford, England drbecky.uk.com 9 yrs, 9 mos on Twitter | 3,326 | 31.6% |
| 141. |  Bobak Ferdowsi@tweetsoutloud Explorer of space. Engineer on NISAR Earth Science & Europa Clipper. Mars Curiosity, Cassini Saturn. Cat dad. Self-opinioned. Pasadena, CA instagram.com/tweetsoutloud 9 yrs, 5 mos on Twitter | 121,531 | 31.4% |
| 142. |  Dr Erin Ryan@erinleeryan Doctor of the flying space rocks, prez of Science on Cake Appreciation Society, collector of orchid plants & stress baker. Not tweeting for any employer. The shores of the crab infested impact crater erinleeryan.com 9 yrs, 4 mos on Twitter | 2,799 | 31.4% |
| 143. |  Corey S. Powell@coreyspowell Science writer on @BillNyeSaves. Contributing editor at @discovermag, @AmSciMag, and @aeonmag. Science-curious. Brooklyn, NY discovermagazine.com/outthere 9 yrs, 10 mos on Twitter | 66,656 | 31.1% |
| 144. |  Natalie Batalha@nbatalha Eukaryote on planet Earth using self-awareness and empathy to experience love and seek knowledge. Astronomer involved in search for life on exoplanets. Silicon Valley, California 9 yrs, 11 mos on Twitter | 5,997 | 31.1% |
| 145. |  Jesse Shanahan@Enceladosaurus Data scientist at Booz Allen. Astrophysicist. Volunteer EMT & USAR hopeful. Cofounded @AAS_WGAD, creator of #disabledandSTEM. Wants accessible video games! #EDS Stolen Manahoac Land enceladosaur.us 7 yrs, 7 mos on Twitter | 5,196 | 31.1% |
| 146. |  Sloan Digital Sky Surveys@sdssurveys Tweeting about mapping the Universe @APOGEEsurvey @eBOSSurvey @MaNGASurvey Apache Point Observatory. sdss.org 5 yrs, 11 mos on Twitter | 4,001 | 31.1% |
| 147. |  Ruth Angus@ruthangus Assistant Curator of Astrophysics at the American Museum of Natural History @AMNH, Assoc Research Scientist @FlatironCCA & Adj Prof at Columbia University. New York, NY ruthangus.github.io 7 yrs, 8 mos on Twitter | 1,614 | 31.1% |
| 148. |  Tim Peake@astro_timpeake ESA astronaut & test pilot back on Earth after 6 months in space. New book out now (proceeds to Prince's Trust): amzn.to/2MLUsJK Tweets are my own Cologne, Germany timpeake.esa.int 6 yrs, 9 mos on Twitter | 1,623,932 | 30.8% |
| 149. |  NYT Science@NYTScience Science, Medicine, Environment, Space and Cosmos. Sync your calendar with the solar system: nyti.ms/2ECMtej New York, NY nytimes.com/science 11 yrs, 10 mos on Twitter | 1,139,674 | 30.8% |
| 150. |  Rogue NASA@RogueNASA The unofficial "Resistance" team of NASA. Not an official NASA account. Not managed by gov't employees. Come for the facts, stay for the snark. Washington, DC 1 yr, 11 mos on Twitter | 867,413 | 30.8% |
| 151. |  Jason Major@JPMajor Space. Planets. NASA. Science. Rocketry. Astronomy. Democracy. Nature. Birds. Coffee. Occasionally funny. Bad with numbers. Sometimes I make pictures. Warwick, RI lightsinthedark.com 9 yrs, 0 mos on Twitter | 28,860 | 30.8% |
| 152. |  The Zooniverse@the_zooniverse The world's largest and most successful citizen science organisation. Our projects include Galaxy Zoo, Old Weather, Planet Hunters, Snapshot Serengeti & more. Zooniverse HQ zooniverse.org 9 yrs, 2 mos on Twitter | 19,665 | 30.8% |
| 153. |  Stuart@astronomyblog Maker of things. Data wrangler. Co-author of "Cosmos: The Infographic Book of Space". Podcaster. Has ridden across continents on a bicycle. ✨🛰📕📊🏳️🌈 Yorkshire cosmos-book.github.io 11 yrs, 7 mos on Twitter | 8,106 | 30.8% |
| 154. |  James Bullock@jbprime Astronomer. Cosmologist. Befuddled dad. Professor at #UCIrvine. Chair of @UCIPhysAstro Sometimes mumbler on @ScienceChannel #HTUW Irvine, California, USA physics.uci.edu/~bullock/ 9 yrs, 5 mos on Twitter | 3,474 | 30.8% |
| 155. |  Scientific American@sciam Awesome discoveries. Expert insights. Science that shapes the world. New York City scientificamerican.com 10 yrs, 8 mos on Twitter | 3,686,828 | 30.6% |
| 156. |  Buzz Aldrin@TheRealBuzz 88 yrs young. Gemini 12 & Apollo 11 Astronaut & Moonwalker; West Point to USAF Colonel, Korean War veteran; Doctorate, MIT Founder, Human SpaceFlight Institute buzzaldrinventures.com 9 yrs, 7 mos on Twitter | 1,357,538 | 30.6% |
| 157. |  .Astronomy@dotastronomy Conference series about what happens when hackers, astronomers and the web all get together. Cambridge, MA, USA dotastronomy.com 10 yrs, 7 mos on Twitter | 3,929 | 30.6% |
| 158. |  Science Magazine@sciencemagazine The world's leading outlet for cutting-edge research in all areas of science. Follow @NewsfromScience for stories from our news team. Washington, DC & Cambridge, UK sciencemag.org 9 yrs, 9 mos on Twitter | 1,224,779 | 30.3% |
| 159. |  NASA InSight@NASAInSight The InSight mission will study the early evolution of terrestrial planets. Launched May 5, 2018. Landed Nov. 26, 2018. Elysium Planitia, Mars mars.nasa.gov/insight 7 yrs, 2 mos on Twitter | 686,634 | 30.3% |
| 160. |  James Tuttle Keane@jtuttlekeane Postdoc at @Caltech. Studying planetary geophysics of rocky & icy worlds. Occasional science illustrator. Trekkie. Dog dad. He/him. Pasadena, CA jamestuttlekeane.com 4 yrs, 9 mos on Twitter | 5,581 | 30.3% |
| 161. |  Katey Alatalo@astrokatey Ph.D. astronomer at STScI, currently housed at Carnegie. Space is amazing! My views are my own. Pasadena, CA stsci.edu/~kalatalo/ 10 yrs, 7 mos on Twitter | 3,530 | 30.3% |
| 162. |  ESA Operations@esaoperations From Earth orbit to deep space: sharing the excitement of realtime mission operations at the European Space Agency #WhereMissionsComeAlive 🛰🕹️ Darmstadt, Germany esa.int/operations 10 yrs, 2 mos on Twitter | 260,542 | 30.0% |
| 163. |  NASA's Dawn Mission@NASA_Dawn My mission has ended, but the science continues. Visit @NASASolarSystem for the latest. Main Asteroid Belt dawn.jpl.nasa.gov 9 yrs, 2 mos on Twitter | 234,504 | 30.0% |
| 164. |  Ian O'Neill@astroengine Recovering solar astrophysicist, science writer/editor, skeptic, hairy atheist, fairly liberal, rabbit fan. Woodland Hills, Los Angeles astroengine.com 10 yrs, 5 mos on Twitter | 35,938 | 30.0% |
| 165. |  Franck Marchis@AllPlanets Planetary astronomer at the SETI Institute, CSO at Unistellar, husband, dad & crossfit athlete balancing his life. Tweet about space, our planet & human rights. San Francisco franckmarchis.com 8 yrs, 4 mos on Twitter | 6,180 | 30.0% |
| 166. |  Jason Kalirai@JasonKalirai Astrophysicist and Civil Space Mission Area Executive @JHUAPL. Excited about space exploration and enabling new science with amazing missions. Tweets mine. Highland, MD jasonkalirai.com 7 yrs, 6 mos on Twitter | 2,422 | 30.0% |
| 167. |  PHD Comics@PHDcomics Life (or the lack thereof) in Academia. Instagram.com/phd_comics phdcomics.com 10 yrs, 5 mos on Twitter | 220,935 | 29.8% |
| 168. |  Brian Keating@DrBrianKeating Physics Professor: @UCSanDiego @UCSDcosmology. Dir.: @SimonsObs. Assoc. Dir.: @imagineUCSD. Author LOSING THE NOBEL PRIZE amzn.to/2sa5UpA @WWNorton @TantorAudio San Diego, CA briankeating.com 8 yrs, 3 mos on Twitter | 7,061 | 29.8% |
| 169. |  WomanAstro@womanastronomer Promoting astronomy, encouraging women/girls interested in science. WomanAstro.com, etsy.com/shop/WomanAstro New Mexico, USA WomanAstro.com 9 yrs, 1 mo on Twitter | 4,962 | 29.8% |
| 170. |  Overheard On Astroph@OverheardOnAph Eavesdropping on tex-source comments in papers posted to astro-ph 9 mos on Twitter until last tweet (2014-Oct-21) | 2,274 | 29.8% |
| 171. |  Phil Marshall@drphilmarshall Astrophysicist, into cosmology, gravitational lenses and inference. This is the closest thing I have to a research blog. I'll write more if you tweet at me. San Francisco slac.stanford.edu/~pjm 9 yrs, 8 mos on Twitter | 1,523 | 29.8% |
| 172. |  BlackPhysicists@BlackPhysicists Arlington, VA and Worldwide 9 yrs, 7 mos on Twitter | 19,010 | 29.5% |
| 173. |  TrueSciPhi@TrueSciPhi A window on science, mathematics, and philosophy communities on Twitter and YouTube, by Kelly Truelove. See site for more. Austin, Texas TrueSciPhi.org 3 yrs, 7 mos on Twitter | 5,963 | 29.5% |
| 174. |  Science Friday@scifri Brain fun for curious people. Hosted by @iraflatow. From @WNYCStudios. New York, New York sciencefriday.com 10 yrs, 3 mos on Twitter | 761,413 | 29.2% |
| 175. |  SPACE.com@SPACEdotcom News coverage and conversation about space science, astronomy and exploration. Part of @futureplc NYC SPACE.com 10 yrs, 6 mos on Twitter | 751,615 | 29.2% |
| 176. |  HUBBLE@HUBBLE_space The official feed of ESA/Hubble. The Hubble Space Telescope is the space-based observatory which has revolutionised modern astronomy. space spacetelescope.org 8 yrs, 8 mos on Twitter | 566,320 | 29.2% |
| 177. |  Hannah Wakeford@StellarPlanet Giacconi Fellow @STScI/@AURADC , @exo_cast podcaster & @BSACDIVER | Previously @NASAGoddard Fellow & @UniofExeter PhD | Expressed opinions are mine stellarplanet.org 7 yrs, 3 mos on Twitter | 2,338 | 29.2% |
| 178. |  Dr. Rachael Beaton@rareflwr41 migrant astronomer currently at Princeton; 'i have loved the stars too fondly to be fearful of the night' - sarah williams princeton, nj sites.google.com/site/rachaellb… 8 yrs, 10 mos on Twitter | 1,322 | 29.2% |
| 179. |  JC Holbrook@astroholbrook Astrophysicist, Filmmaker, Cultural Astronomer. Hubble's Diverse Universe on Amazon.com BlackSunMovie.com videos.astroanthro.com/Science-Tourist Kaapstad, ZA uwcastro.org/our_team/holbr… 9 yrs, 5 mos on Twitter | 2,722 | 29.0% |
| 180. |  Spirit and Oppy@MarsRovers Roving the Red Planet on six wheels since Jan 2004. The official mission Twitter of the Spirit and Opportunity rovers. Mars: Gusev Crater & Meridiani marsrovers.jpl.nasa.gov 10 yrs, 6 mos on Twitter | 462,738 | 28.7% |
| 181. |  DNLee@DNLee5 #JrProf, Mammalogist, Diversity & Access to STEM, Unapologetically Intersectional, Mama Panyabuku, TED Fellow, NatGeo Emerging Explorer, #DispatchesDNLee Midwest, US; Tanzania, Africa openexplorer.nationalgeographic.com/expedition/dnl… 8 yrs, 5 mos on Twitter | 29,527 | 28.7% |
| 182. |  Shannon Stirone@shannonmstirone Writer. Art Historian. Bylines @PopSci @NYTimes @TheAtlantic @NatGeo @NewRepublic @Wired @Longreads & others. Opinions are mine. Bay Area, CA shannonstirone.com 4 yrs, 5 mos on Twitter | 14,551 | 28.7% |
| 183. |  Elizabeth Tasker@girlandkat UK astrophysicist working at the Japan Aerospace Exploration Agency (JAXA). Author of 'The Planet Factory', published by @sigmascience (views are my own~) • The Planet Factory Japan about.me/elizabethtasker 7 yrs, 2 mos on Twitter | 2,810 | 28.7% |
| 184. |  Erik Tollerud@eteq Astrophysicist, Python coder, and general lover of nature in all its forms. Opinions are my own. Baltimore, MD stsci.edu/~etollerud 9 yrs, 7 mos on Twitter | 1,554 | 28.7% |
| 185. |  Scott Kelly@StationCDRKelly scottkelly.com Earth 9 yrs, 5 mos on Twitter | 5,646,880 | 28.4% |
| 186. |  Jonathan Amos@BBCAmos BBC Science Correspondent Cambridge, UK bbcnews.com 9 yrs, 0 mos on Twitter | 42,517 | 28.4% |
| 187. |  Daniel Fischer@cosmos4u All things astronomy and space (and then some) - in tiny bits and pieces but mostly with links to more ... :-) Königswinter, Germany skyweek.wordpress.com 10 yrs, 3 mos on Twitter | 12,972 | 28.4% |
| 188. |  Benjamin Pope@fringetracker Astronomer - he/him Manhattan, NY benjaminpope.github.io 6 yrs, 0 mos on Twitter | 2,524 | 28.4% |
| 189. |  Jo Dunkley@j_dunkley Professor of Physics and Astrophysics at Princeton. Author of Our Universe. • Our Universe Princeton, NJ physics.princeton.edu/~jdunkley 7 yrs, 3 mos on Twitter | 2,393 | 28.4% |
| 190. |  AAS CSWA@AAS_Women The American Astronomical Society Committee on the Status of Women in Astronomy works to improve the status of women in astronomy. Page manager Nancy Morrison. United States aas.org/cswa/ 7 yrs, 1 mo on Twitter | 1,904 | 28.4% |
| 191. |  Joss Bland-Hawthorn@JossBlandHawtho All things novel, astrophysical, mathematical, technological. • The Origin of the Galaxy and Loca... • The Galaxy Disk in Cosmological C... Sydney, Australia physics.usyd.edu.au/~jbh/ 4 yrs, 7 mos on Twitter | 1,829 | 28.4% |
| 192. |  Jeff Foust@jeff_foust Senior writer, @SpaceNews_Inc. You know the drill: retweets aren't endorsements; opinions here are my own. Rockville, Maryland, USA jfoust.com 11 yrs, 7 mos on Twitter | 34,950 | 28.2% |
| 193. |  Dr Jess Wade 👩🏻🔬@jesswade Physics postdoc @ImperialCollege. @500womensci/ @wes1919 / @wikiwomeninred / @physicsnews enthusiast. I 💜 🔬, 💎s and 🌀s. Least useful doctor in my family. gofundme.com/challenge-bias… 9 yrs, 11 mos on Twitter | 24,784 | 28.2% |
| 194. |  Jonathan Fortney@jjfplanet @ucsc Professor & Director of Other Worlds Laboratory. Modeler of planetary atmospheres & interiors. Father, Softballer, Runner, Human Selfie Stick, Minnesotan Santa Cruz, CA owl.ucsc.edu 6 yrs, 11 mos on Twitter | 2,282 | 28.2% |
| 195. |  Adrian Price-Whelan@adrianprw astrophysics postdoc @ Princeton, galaxy dynamics, binary stars, music github.com/adrn ??? adrian.pw 7 yrs, 7 mos on Twitter | 1,850 | 28.2% |
| 196. |  President Obama@POTUS44 This is an archive of an Obama Administration account maintained by the National Archives and Records Administration (NARA). Washington, D.C. obamalibrary.gov/research/archi… 3 yrs, 7 mos on Twitter until last tweet (2017-Jan-20) | 14,907,995 | 27.9% |
| 197. |  Samantha Cristoforetti@AstroSamantha European of Italian nationality. @ESA astronaut. ISS Exp 42/43. Book out Oct 4 (proceeds to @UNICEF_Italia) amzn.to/2xNnkc6 In English in 2019! Europe samanthacristoforetti.esa.int 7 yrs, 6 mos on Twitter | 977,684 | 27.9% |
| 198. |  Institute of Physics@PhysicsNews The Institute of Physics is a leading scientific membership society working to advance physics for the benefit of all. UK iop.org 9 yrs, 8 mos on Twitter | 169,187 | 27.9% |
| 199. |  Sky & Telescope@SkyandTelescope The Essential Guide to Astronomy | We provide the world's leading compendium of information about the science and hobby of astronomy. Cambridge, Mass. skyandtelescope.com 9 yrs, 10 mos on Twitter | 102,960 | 27.9% |
| 200. |  NRAO@TheNRAO The National Radio Astronomy Observatory is a facility of the National Science Foundation. Social media policy: bit.ly/2qNhpB3 Charlottesville, VA nrao.edu 10 yrs, 3 mos on Twitter | 17,826 | 27.9% |
| 201. |  Nancy Atkinson@Nancy_A Science journalist, @universetoday & @Seeker. Author of "Incredible Stories From Space," working on book about Apollo 11 Minnesota nancyatkinson.com 10 yrs, 6 mos on Twitter | 11,510 | 27.9% |
| 202. |  LSST Astronomy@LSST The widest, fastest, deepest eye of the new digital age. Cerro Pachon, Chile lsst.org 10 yrs, 5 mos on Twitter | 5,126 | 27.9% |
| 203. |  AAS Executive Office@AAS_Office The mission of the American Astronomical Society (AAS) is to enhance & share humanity's scientific understanding of the universe. Washington, DC, USA aas.org 8 yrs, 2 mos on Twitter | 3,115 | 27.9% |
| 204. |  Matthew Kenworthy@mattkenworthy Associate Professor of Astronomy at Leiden Observatory - looking for exoplanets and giant rings, and develops instrumentation to find them. Opinions are my own. Leiden, The Netherlands kenworthy.space 8 yrs, 3 mos on Twitter | 1,567 | 27.9% |
| 205. |  WIRED Science@WIREDScience Bringing the radiothermally generated heat. The team: @sandraupson, @JetJocko, @rtg0nzalez, @MeganMolteni, and @MrMattSimon. San Francisco, California wired.com/category/wired… 11 yrs, 3 mos on Twitter | 2,014,684 | 27.6% |
| 206. |  NOT ALT WORLD@NotAltWorld The #Resistance team against #AltFacts #FauxNews #FauxScience Formerly: Unofficial National Park Service #Science #Climate #Facts Run by non-gov individuals Worldwide 1 yr, 9 mos on Twitter until last tweet (2017-Feb-07) | 1,142,510 | 27.6% |
| 207. |  AAS Press Office@AAS_Press Astronomy news from the Press Office of the American Astronomical Society, managed by Dr. Rick Fienberg. Note: Tweeting is not endorsing, only informing. aas.org/media-press 8 yrs, 2 mos on Twitter | 4,978 | 27.6% |
| 208. |  John O'Meara@astronomeara Father, Astronomer, science policy nerd. Chief Scientist @keckobservatory Cosmic Origins Science Lead for #LUVOIR Chair AAAC. Tweets are my own Essex Junction, Vermont 9 yrs, 4 mos on Twitter | 1,269 | 27.6% |
| 209. |  Jim Al-Khalili@jimalkhalili Professor of theoretical physics, author, broadcaster and humanist. President of @BritSciAssoc. "Affable Egghead" (Sunday Times). University of Surrey jimal-khalili.com 9 yrs, 0 mos on Twitter | 125,398 | 27.3% |
| 210. |  Matt Taylor@mggtTaylor I work at ESA on the Rosetta mission. 501st Dutch Garrison TK67676 EIB Netherlands 6 yrs, 3 mos on Twitter | 33,853 | 27.3% |
| 211. |  The Jupiter Girl@upulie Molecular Biology, Nanotechnology| Space | Astropalaeontology | Co-founder, @realscientists | Dinosaur Evangelist | Narrm, Kulin Nation, Australia patreon.com/upulie 8 yrs, 4 mos on Twitter | 32,833 | 27.3% |
| 212. |  Radio Astrology@RadioAstrology Opening new windows in the prediction spectrum. Astrology at long wavelengths. In the stars (and the ISM) 7 yrs, 2 mos on Twitter | 3,628 | 27.3% |
| 213. |  Astronomy Meetings@astromeetings Sharing astronomy meeting twitter links. Send me your conference title, #tag and url, **when the meeting starts**, and I'll RT to distribute. @AstroRJS 4 yrs, 8 mos on Twitter | 1,282 | 27.3% |
| 214. |  SquareKilometreArray@SKA_telescope The SKA will be the world's largest radio telescope, located in Africa & Australia. Tweets from the SKA Global Headquarters @jodrellbank. Jodrell Bank (UK) skatelescope.org 8 yrs, 3 mos on Twitter | 19,045 | 27.1% |
| 215. |  Priyamvada Natarajan@SheerPriya @Yale astrophysicist, works on exotica in the universe: dark matter, black holes; Author: Mapping the Heavens • https://t.co/DuzePWpq2N • Mapping the Heavens • The Shapes Of Galaxies and their ... New Haven, CT amazon.com/gp/aw/d/030020… 2 yrs, 10 mos on Twitter | 9,051 | 27.1% |
| 216. |  Eric Mamajek@EricMamajek astronomer, dad, reader of stellar tea leaves, searcher of extrasolar needles in haystacks. The statements and opinions posted here are my own. Pasadena, CA 7 yrs, 11 mos on Twitter | 2,082 | 27.1% |
| 217. |  HubbleTelescope@HubbleTelescope News from the Hubble Space Telescope operated by @stsci hubblesite.org/news 10 yrs, 6 mos on Twitter | 134,318 | 26.8% |
| 218. |  Lisa Grossman@astrolisa Astronomy reporter at Science News, lifelong astronomy nerd. Ideas my own. She/her/hers Cambridge, MA 9 yrs, 10 mos on Twitter | 7,672 | 26.8% |
| 219. |  Sara Seager@ProfSaraSeager Prof. Seager is an astrophysicist and planetary scientist at MIT. A pioneer in the vast world of exoplanets, she's on a quest for the holy grail: another Earth. • Exoplanets (Space Science Series) • Exoplanet Atmospheres Cambridge, MA seagerexoplanets.mit.edu 8 yrs, 3 mos on Twitter | 7,320 | 26.8% |
| 220. |  Arfon Smith@arfon Head of Data Science @stsci. Ex GitHubber. Zooniverse co-founder. Editor-in-chief of The Journal of Open Source Software. Baltimore, MD arfon.org 12 yrs, 0 mos on Twitter | 4,191 | 26.8% |
| 221. |  Dr Megan Argo@AstroMeg By day: just another transient astronomer. By night: samba drumming, rock climbing, public speaker, teacher and science advocate. facebook.com/DrMeganArgo Planet Earth drmeganargo.net 9 yrs, 10 mos on Twitter | 3,541 | 26.8% |
| 222. |  SAO/NASA ADS@adsabs adsabs.harvard.edu 8 yrs, 0 mos on Twitter | 2,326 | 26.8% |
| 223. |  Dianna Cowern@thephysicsgirl Assume a spherical cowern in a vacuum... kauai-grown, #MIT physics, YouTube videos. Pls respond to tweets w bad puns. San Diego youtube.com/physicsgirl 6 yrs, 10 mos on Twitter | 96,608 | 26.5% |
| 224. |  Lego Academics@LegoAcademics The female academics of the Lego Research Institute take on the challenges of modern academia. CC-BY-NC-SA Lego Research Institute ideas.lego.com/projects/83039 4 yrs, 5 mos on Twitter | 74,109 | 26.5% |
| 225. |  Jennifer Ouellette@JenLucPiquant Science writer Jennifer Ouellette. Senior reporter, Ars Technica. Past: Gizmodo. Ex-evangelical. Married to @seanmcarroll. Los Angeles, CA jenniferouellette-writes.com 8 yrs, 9 mos on Twitter | 36,380 | 26.5% |
| 226. |  History of Astronomy@HistAstro Multidisciplinary & multicultural history of astronomy #histastro by @VoulaSaridakis, Ph.D. | Curator, Museum of Science and Industry, Chicago @msichicago. All tweets/views/opinions mine 3 yrs, 10 mos on Twitter | 20,297 | 26.5% |
| 227. |  Thomas Zurbuchen@Dr_ThomasZ Associate Administrator, @NASA Science Mission Directorate Washington, DC science.nasa.gov 7 yrs, 10 mos on Twitter | 19,993 | 26.5% |
| 228. |  galaxyzoo@galaxyzoo It's Galaxy Zoo! galaxyzoo.org 10 yrs, 0 mos on Twitter | 13,550 | 26.5% |
| 229. |  Dr Tabetha Boyajian@tsboyajian Assistant professor of Astrophysics at #LSU. disrupter of astrophysics; #BoyajiansStar #TabbysStar; all posts here are my own • Extrasolar Planets and Their Host... Baton Rouge, LA wherestheflux.com 9 yrs, 5 mos on Twitter | 9,654 | 26.5% |
| 230. |  Laura Lopez@ohdearz Astronomy professor at Ohio State 6 yrs, 2 mos on Twitter | 1,468 | 26.5% |
| 231. |  National Science Foundation@NSF Explore #NSFfunded research that is transforming the world. / Social media policy: bit.ly/smpnsf Alexandria, VA nsf.gov 10 yrs, 4 mos on Twitter | 1,084,806 | 26.3% |
| 232. |  NASA's OSIRIS-REx@OSIRISREx NASA's first asteroid sampling spacecraft. I'm on a 7-year mission to return a pristine sample from asteroid Bennu. In orbit around Bennu AsteroidMission.org 10 yrs, 7 mos on Twitter | 72,558 | 26.3% |
| 233. |  Alan Boyle@b0yle Aerospace and science editor @GeekWire. Longtime blogger @CosmicLog. Author of "The Case for Pluto." Links/RTs ≠ endorsements Seattle geekwire.com/author/alanboy… 10 yrs, 10 mos on Twitter | 34,857 | 26.3% |
| 234. |  Andy Rivkin@asrivkin Planetary astronomer on #TeamAsteroid; Gedankenband member and guitarist; Persistently Obstreperous. #USAstronomyGoodwillAmbassador ⊗ imperturbable-music.blogspot.com 10 yrs, 7 mos on Twitter | 4,375 | 26.3% |
| 235. |  Andrew Pontzen@apontzen I do cosmology. Employed by UCL, funded by the Royal Society. Tweeting in a personal capacity: it’s no-one else’s fault when I talk nonsense. London andrew.pontzen.uk 8 yrs, 5 mos on Twitter | 3,178 | 26.3% |
| 236. |  Astropy@astropy This is the official twitter account for the Astropy project. Earth astropy.org 7 yrs, 5 mos on Twitter | 2,764 | 26.3% |
| 237. |  Andy Lawrence@e_astronomer Quasar fan and survey nut. Check out random Milky Way snaps @MilkyWayBot, Oculus/Stellarium project @StarsightVR and its crowdfunder crowdfunder.co.uk/starsight-vr/ • Probability in Physics • Astronomical Measurement Auld Reekie roe.ac.uk/~al 8 yrs, 9 mos on Twitter | 2,017 | 26.3% |
| 238. |  Intl. Space Station@Space_Station NASA's page for updates from the International Space Station, the world-class lab orbiting Earth 250 miles above. For the latest research, follow @ISS_Research. Low Earth Orbit nasa.gov/station 5 yrs, 7 mos on Twitter | 2,382,440 | 26.0% |
| 239. |  Dr. Brian May@DrBrianMay Rocket Ship Builder 🚀🚀🚀🚀🚀 brianmay.com 6 yrs, 3 mos on Twitter | 860,942 | 26.0% |
| 240. |  NASA Voyager@NASAVoyager The official account for NASA’s twin Voyager 1 & 2 spacecraft, the longest operating spacecraft in deep space. 🛰 Mission team headquartered at @NASAJPL Interstellar space voyager.jpl.nasa.gov 8 yrs, 4 mos on Twitter | 540,277 | 26.0% |
| 241. |  Dr Jen Gupta@jen_gupta Space nerd. @UoPCosmology astronomy outreach. @SeldomSirius podcaster. @TWBBC Live presenter. @WinSciFest. Active Galaxies were my 1st love. Own views [she/her] Winchester, UK jengupta.com 9 yrs, 5 mos on Twitter | 4,427 | 26.0% |
| 242. |  Jonathan Pritchard@jr_pritchard Imperial astrophysicist and bewildered vagabond. Reader. SKA enthusiast. @ERC_research funded (opinions mine, not employer's) Richmond, London imperial.ac.uk/people/j.pritc… 8 yrs, 0 mos on Twitter | 1,654 | 26.0% |
| 243. |  Liz B ☆@astro_Liz X-ray and Optical Astronomer at @ESO. FLAMES Instrument Scientist. Bleeding heart liberal & intersectional feminist. All views my own. Ⓥ #ActualLivingScientist Santiago, Chile 6 yrs, 10 mos on Twitter | 1,471 | 26.0% |
| 244. |  Hillary Clinton@HillaryClinton 2016 Democratic Nominee, SecState, Senator, hair icon. Mom, Wife, Grandma x2, lawyer, advocate, fan of walks in the woods & standing up for our democracy. New York, NY onwardtogether.org 5 yrs, 9 mos on Twitter | 23,919,139 | 25.7% |
| 245. |  NASA_TESS@NASA_TESS This is the official @NASA Twitter for the Transiting Exoplanet Survey Satellite (TESS). @NASA_TESS will perform an all-sky survey to discover new exoplanets Goddard Space Flight Center tess.gsfc.nasa.gov 5 yrs, 4 mos on Twitter | 45,778 | 25.7% |
| 246. |  Stuart Clark@DrStuClark Astronomer, journalist, author. The Sky's Dark Labyrinth. Writes Across the Universe for The Guardian. Co-hosts The Stuniverse podcast. Dyed-in-the-wool progger • The Unknown Universe • Is There Life On Mars? • Little Moon London stuartclark.com 9 yrs, 8 mos on Twitter | 35,405 | 25.7% |
| 247. |  Karen James ❄️@kejames In which a rogue scientist & outdoorswoman tweets about molecular ecology, genetics, evolution, botany, space, feminism & social justice, but in reverse order. Bar Harbor, ME youtu.be/4-3v_pAJmQk 10 yrs, 2 mos on Twitter | 29,578 | 25.7% |
| 248. |  Guardian Science@guardianscience Science, health and environment news from the @Guardian. Plus, independent comment and analysis from our network of expert science bloggers London theguardian.com/science 9 yrs, 10 mos on Twitter | 1,064,005 | 25.5% |
| 249. |  John Grunsfeld@SciAstro Former lead for Science at NASA (Associate Administrator) Astronaut STS-67,81,103,109,125 Hubble Hugger, Space and Earth explorer go.nasa.gov/johngrunsfeld 5 yrs, 11 mos on Twitter until last tweet (2018-Jan-11) | 32,047 | 25.5% |
| 250. |  Emily Baldwin@AstroEmz Space Science Editor at EJR-Quartz for ESA, based at ESTEC. Tweets about space, running, coffee. Opinions own. Leiden, Netherlands 9 yrs, 10 mos on Twitter | 4,948 | 25.5% |
| 251. |  Lisa Randall@lirarandall Physicist and author. Dark Matter and the Dinosaurs,Warped Passages,Knocking on Heaven's Door,Higgs Discovery. Opinions expressed are not solely my own. 8 yrs, 0 mos on Twitter | 56,772 | 25.2% |
| 252. |  Miriam Kramer@mirikramer Always a space reporter. It's not aliens. It's never aliens. DMs open and a mess. Now: NYC. Before: Tennessee. 8 yrs, 8 mos on Twitter | 17,283 | 25.2% |
| 253. |  ★ Colin Stuart ★@skyponderer Astronomy author & speaker. Get a free e-book @ bit.ly/2zjaIee. See www for signed books, keynotes & school talks. Asteroid (15347) Colinstuart • Mars • How to Live in Space • Fabulous Figures and Cool Calcula... London colinstuart.net 10 yrs, 1 mo on Twitter | 5,981 | 25.2% |
| 254. |  Giant Magellan@GMTelescope The first “Extremely Large Telescope” seeking to unlock the mysteries of the universe. Las Campanas, Chile gmto.org 7 yrs, 7 mos on Twitter | 5,324 | 25.2% |
| 255. |  Mark McCaughrean@markmccaughrean Senior Advisor for Science & Exploration at the European Space Agency. Well aware of the (in)significance of being recycled starstuff. Opinions very much own. • The Origins of Stars and Planets • The Origins of Stars and Planets Wassenaar, The Netherlands 3 yrs, 5 mos on Twitter | 5,097 | 25.2% |
| 256. |  Kimberly EnnicoSmith@kennicosmith Scientist fueled by tea. Inspired by many. Passionate about space exploration, human & robotic. The unexpected can be expected with confidence. Mountain View, CA kandrsmith.org/KES/ 10 yrs, 10 mos on Twitter | 3,765 | 25.2% |
| 257. |  Kristin Block@MarsMaven Spacecraft pro, taiko player, bassist, percussionist. Miami-Tucson-Bay Area. (Not affiliated with the mission @Maven2Mars!) Opinions my own and queer. San Jose, CA 9 yrs, 7 mos on Twitter | 3,605 | 25.2% |
| 258. |  Robert Massey@RobertMMassey Dad, Deputy Executive Director @royalastrosoc, chair @lightyear_fdn. Co-author of Moon: Art, Science, Culture with @saschaloske. See bit.ly/2PpjMn0 Bristol (Southville) & London 9 yrs, 5 mos on Twitter | 2,800 | 25.2% |
| 259. |  Stephen Serjeant@StephenSerjeant Astronomy Prof at Open University,occasionally does OU/BBC stuff. 26.2mi=42.2km.Remainer. Likes often=bookmarks. Views here do not necessarily blah blah. He/him • An Introduction to Galaxies and C... • Observational Cosmology 127.0.0.1 stephenserjeant.github.io 9 yrs, 9 mos on Twitter | 2,237 | 25.2% |
| 260. |  The Royal Society@royalsociety The Royal Society is a Fellowship of the world's most eminent scientists and is the oldest scientific academy in continuous existence. fb.com/theroyalsociety London, UK royalsociety.org 9 yrs, 9 mos on Twitter | 217,316 | 24.9% |
| 261. |  Amy Mainzer@AmyMainzer Scientist Jet Propulsion Laboratory science.jpl.nasa.gov/people/Mainzer/ 5 yrs, 11 mos on Twitter | 26,602 | 24.9% |
| 262. |  Carnegie Astronomy@CarnegieAstro Bringing you astronomy from The Carnegie Institution for Science: The Observatories in Pasadena, CA, DTM in Washington DC, and Las Campanas Observatory in Chile Pasadena, CA bit.ly/CarnegieAstro 3 yrs, 11 mos on Twitter | 5,994 | 24.9% |
| 263. |  Jill Tarter@jilltarter Earthling, chief cheerleader for SETI, setiQuest, and the Allen Telescope Array Jack's wife - Shana's mom - Li Yao and Clara's grandma Earth in the Cosmos setistars.org 9 yrs, 10 mos on Twitter | 4,722 | 24.9% |
| 264. |  Ariel Waldman@arielwaldman NASA advisor. Antarctic explorer. Author of amzn.to/1MFUEVC. Global director @ScienceHackDay. YouTuber youtube.com/arielwaldman. San Francisco arielwaldman.com 11 yrs, 10 mos on Twitter | 32,834 | 24.7% |
| 265. |  Ellen Stofan@EllenStofan John and Adrienne Mars Director of National Air and Space Museum, Planetary geologist, STEM advocate, former Chief Scientist of NASA. My tweets are my own. • Planetology • Exploring Venus as a Terrestrial ... Washington, DC airandspace.si.edu/stories/editor… 6 yrs, 11 mos on Twitter | 11,286 | 24.7% |
| 266. |  Space Telescope Live@spacetelelive What is @HubbleTelescope looking at? –Reference images from @STScI Digitized Sky Survey and Sloan Digital Sky Survey Data Release 13 (not actual Hubble images) Low Earth Orbit spacetelescopelive.org 2 yrs, 4 mos on Twitter | 9,469 | 24.7% |
| 267. |  Chris North@chrisenorth Lecturer & astronomer @CardiffPHYSX. Co-author of cosmos-book.github.io + other books, semi-regular broadcaster. Comments own. [he/his] • The Sky at Night • Cosmos • How to Read the Solar System Cardiff (normally) blogs.cardiff.ac.uk/chrisnorth 9 yrs, 3 mos on Twitter | 5,372 | 24.7% |
| 268. |  Awesome_Ph@Awesome_Ph The most awesome(st) of Astro-ph every day! Few one line summaries of papers on the ArXiV that caught my attention. Brought to you by the Extronomer. 7 yrs, 8 mos on Twitter | 1,965 | 24.7% |
| 269. |  Dra. Nicole@jazztronomy STEM Inclusion Consultant | Astronomy PhD and STEM equity advocate | She/Her/Hers | #LatinaInSTEM | I have the best ideas. Catlanta 4 yrs, 3 mos on Twitter | 1,837 | 24.7% |
| 270. |  Angela Speck@Stardustspeck Tattooed witchy astrolator; stellar mortician, empress of the eclipse, queen of astromineralogy; SJW; currently living in the Midwest. Columbia, MO stardustspeck.com 7 yrs, 9 mos on Twitter | 1,788 | 24.7% |
| 271. |  Dustin Lang@dstndstn Astronomer at @Perimeter. Farm-raised left-handed vegetarian Canadian socialist. Tweets often astronomical/computational/scatological. he/Dr Waterloo, Canada dstn.astrometry.net 5 yrs, 0 mos on Twitter | 1,345 | 24.7% |
| 272. |  Stephen Colbert@StephenAtHome the guy on CBS 10 yrs, 4 mos on Twitter | 18,346,747 | 24.4% |
| 273. |  Kim Kowal Arcand@kimberlykowal Visualization & emerging tech lead for @chandraxray; public speaker; co-author of 4 popular science books. Opinions=my own 🛰https://t.co/PFs60ywY5f RI, USA chandra.si.edu 10 yrs, 10 mos on Twitter | 8,319 | 24.4% |
| 274. |  Dr. Caryl Gronwall@carylgronwall Astronomer at Penn State University State College, PA astro.psu.edu/~caryl 7 yrs, 10 mos on Twitter | 1,246 | 24.4% |
| 275. |  Nate Silver@NateSilver538 Editor-in-Chief, @FiveThirtyEight. Author, The Signal and the Noise (amzn.to/QdyFYV). Sports/politics/food geek. New York fivethirtyeight.com 10 yrs, 4 mos on Twitter | 3,192,844 | 24.1% |
| 276. |  NASA Kennedy / KSC@NASAKennedy Official Tweets from NASA's Kennedy Space Center Florida, USA nasa.gov/kennedy 10 yrs, 3 mos on Twitter | 1,452,061 | 24.1% |
| 277. |  Amy Shira Teitel@astVintageSpace SPACEFLIGHT HISTORIAN. Book: bit.ly/astbtcog. Vintage Space: bit.ly/vintagespace. Patreon: patreon.com/amyshirateitel PAO = my PAO. Los Angeles, CA youtube.com/vintagespace 8 yrs, 1 mo on Twitter | 225,386 | 24.1% |
| 278. |  ESA Planck@Planck A European Space Agency (ESA) spacecraft to understand the origin and evolution of our Universe L2: 1,000,000 miles from Earth esa.int/planck 9 yrs, 4 mos on Twitter until last tweet (2017-Oct-14) | 47,266 | 24.1% |
| 279. |  Will Gater@willgater Astronomer, journalist & space geek willgater.com | willgaterastrophotography.com | instagram.com/willgater UK willgater.com 10 yrs, 7 mos on Twitter | 7,942 | 24.1% |
| 280. |  Astronomy On Tap HQ@astronomyontap 🌟Professional astronomers reveal how they explore the Universe, at bars & pubs around the world!🌟HQ account follows satellite locations, organizers, & venues. Worldwide AstronomyOnTap.org 5 yrs, 11 mos on Twitter | 2,663 | 24.1% |
| 281. |  Derek Fox@partialobs Research astronomer and faculty member at Penn State University. This is a personal Twitter account. Earth astro.psu.edu/~dfox/ 9 yrs, 10 mos on Twitter | 2,370 | 24.1% |
| 282. |  National Geographic@NatGeo Taking our understanding and awareness of the world further for 130 years | Test your knowledge with our Messenger chatbot: on.natgeo.com/2Om55Qk Global nationalgeographic.com 10 yrs, 1 mo on Twitter | 22,445,679 | 23.9% |
| 283. |  Chandra Observatory@chandraxray Chandra's ongoing mission is to study the X-ray Universe. Operated for NASA by Smithsonian Astrophysical Observatory. Legal: s.si.edu/legal In orbit chandra.si.edu 11 yrs, 0 mos on Twitter | 165,655 | 23.9% |
| 284. |  NASA Spitzer@NASAspitzer NASA's Spitzer Space Telescope - the infrared Great Observatory. Observes asteroids, comets, extrasolar planets, stars, galaxies and more... Pasadena, CA. spitzer.caltech.edu 8 yrs, 9 mos on Twitter | 116,840 | 23.9% |
| 285. |  Meg Rosenburg@trueanomalies planetary science PhD | #scicomm & #histSTM | freelancer, filmmaker, podcaster | megrosenburg.com | And what you do, do it unfeignedly. Somerville, MA megrosenburg.com 6 yrs, 1 mo on Twitter | 4,987 | 23.9% |
| 286. |  Paul Crowther@Paul_Crowther @PhysicsShef Head of Dept at @unisheffield. Prof of Astrophysics mostly researching Monster Stars. Interested in UK sci policy esp @STFC_Matters's ups & downs Peoples Republic of Sheffield pacrowther.staff.shef.ac.uk 9 yrs, 1 mo on Twitter | 2,722 | 23.9% |
| 287. |  Mark Marley@astromarkmarley Astronomer working for a well known national space agency. Interests include extrasolar planets, brown dwarfs, giant planets. Opinions are mine alone. • Brown Dwarf Variability Mountain View, California google.com/profiles/Mark.… 8 yrs, 5 mos on Twitter | 2,102 | 23.9% |
| 288. |  Stephen Fry@stephenfry How can I tell you what I think until I’ve heard what I’m going to say? 🏳️🌈 (Never read DMs I’m afraid) Los Angeles, CA/ London UK stephenfry.com 10 yrs, 6 mos on Twitter | 12,738,817 | 23.6% |
| 289. |  UK Space Agency@spacegovuk Official Twitter channel of the UK Space Agency. We're at the heart of UK efforts to explore and benefit from space. Swindon, England gov.uk/ukspaceagency 9 yrs, 3 mos on Twitter | 202,616 | 23.6% |
| 290. |  Caroline Morley@AstroCaroline Assistant Prof at UT Austin, modeler of substellar atmospheres Austin, TX carolinemorley.com 6 yrs, 3 mos on Twitter | 1,800 | 23.6% |
| 291. |  John Debes@JohnDebes STIS Team Lead at @stsci. Part of @diskdetective and @NASAWFIRST CGI science team. Exoplanets, white dwarf planets, and disks. My opinions are my own. He/Him Geektown, USA stsci.edu/~debes/ 6 yrs, 2 mos on Twitter | 1,054 | 23.6% |
| 292. |  Dr. Abbie@abigailStev #ActualLivingScientist #WomenInSTEM👩🏻💻 NSF fellow @msu_astro & @michiganastro🔭 compact objects💥 #OpenSource pythoner🐍 tea enthusiast🍵she/her♀ views mine Anishinaabeg/Odawa land abigailstevens.com 7 yrs, 11 mos on Twitter | 1,663 | 23.3% |
| 293. |  Mike Massimino@Astro_Mike Former @NASA astronaut, Professor at Columbia @CUSEAS, Sr. Advisor for Space Programs @IntrepidMuseum, Author of #Spaceman New York, NY prh.com/spaceman 9 yrs, 9 mos on Twitter | 1,213,154 | 23.1% |
| 294. |  Brian Greene@bgreene Physicist, Author, Co-founder @WorldSciFest New York, NY briangreene.org 6 yrs, 7 mos on Twitter | 1,017,329 | 23.1% |
| 295. |  XKCD Comic@xkcdComic XKCD comic feed with images, mobile friendly links, and what-if articles. Unofficial, run by @dghubble xkcd.com 5 yrs, 1 mo on Twitter | 202,697 | 23.1% |
| 296. |  Eli Bressert@astrobiased Love big ideas and putting them into action by connecting the impossible. • SciPy and NumPy California, USA 10 yrs, 2 mos on Twitter | 2,506 | 23.1% |
| 297. |  Dr. Jillian Scudder@Jillian_Scudder PhD in astrophysics & assistant professor at @oberlincollege. I study galaxies & write @astroquizzical. I wrote a book! she/hers. • Astroquizzical jillianscudder.com 6 yrs, 5 mos on Twitter | 2,102 | 23.1% |
| 298. |  Stephanie Juneau@StephaJuneau Associate Astronomer at @NOAONorth. Project Scientist for @NOAODataLab. Coffee & dark chocolate addict. Fan of #blackHoles #art #sciart #rockclimbing irfu.cea.fr/Pisp/stephanie… 4 yrs, 7 mos on Twitter | 887 | 23.1% |
| 299. |  ACLU@ACLU The ACLU is a nonprofit, nonpartisan, legal and advocacy 501(c)(4) organization. Visit our site for more about us and our affiliated org, the ACLU Foundation. All 50 states aclu.org 10 yrs, 11 mos on Twitter | 1,560,094 | 22.8% |
| 300. |  NASA History Office@NASAhistory This is the NASA History Office's official Twitter account. We're happy that you share our passion for aerospace history. Washington, DC history.nasa.gov 8 yrs, 7 mos on Twitter | 840,339 | 22.8% |