| 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 cosmic catastrophes Raleigh, NC astrokatie.com 10 yrs, 4 mos on Twitter | 326,290 | 72.7% |
| 2. |  NASA@NASA Explore the universe and discover our home planet with @NASA. We usually post in EDT (UTC-4) nasa.gov 11 yrs, 8 mos on Twitter | 32,786,217 | 66.3% |
| 3. |  Emily Lakdawalla@elakdawalla Senior Editor & Planetary Evangelist, The Planetary Society. Planetary scientist. Asteroid 274860. Views are my own & not those of employer. Pasadena, CA planetary.org/emily 11 yrs, 3 mos on Twitter | 162,447 | 65.4% |
| 4. |  Phil Plait@BadAstronomer SCIENCE! I love this stuff. My Bad Astronomy blog: syfy.com/badastronomy I use "likes" for bookmarks. No endorsement implied. Boulder about.me/philplait 12 yrs, 4 mos on Twitter | 614,486 | 64.4% |
| 5. |  chrislintott@chrislintott Astronomer, zookeeper and journalist, based at University of Oxford. Oxford zooniverse.org 10 yrs, 11 mos on Twitter | 30,395 | 56.8% |
| 6. |  Astrotweeps: Beth@astrotweeps Beth Johnson • @planetarypan • https://t.co/xi86iPD73r • A new astronomer/planetary scientist tweeting about space each week. The Universe astrotweeps.wordpress.com 5 yrs, 8 mos on Twitter | 10,434 | 54.5% |
| 7. |  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, 11 mos on Twitter | 9,047 | 53.6% |
| 8. |  Sarah Tuttle@niais Astrophysicist. We're not going to be shady, just fierce. Professor. Vitals read normal but face reads murderous. 100% problematic. She/her. Here, I guess. 11 yrs, 7 mos on Twitter | 14,284 | 53.1% |
| 9. |  Barack Obama@BarackObama Dad, husband, President, citizen. Washington, DC obama.org 12 yrs, 6 mos on Twitter | 108,423,806 | 52.7% |
| 10. |  Neil deGrasse Tyson@neiltyson Astrophysicist New York City haydenplanetarium.org/tyson/ 10 yrs, 7 mos on Twitter | 13,454,775 | 52.4% |
| 11. |  Dr./Prof. Sarah Hörst@PlanetDr Asst Prof of Planetary Sci @JohnsHopkins and Titan evangelist. “I try not to hope and fail utterly” [email protected] she/her https://t.co/KTdjav31lU Baltimore, MD, USA etsy.com/shop/PlanetDr 10 yrs, 5 mos on Twitter | 54,697 | 52.2% |
| 12. |  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/ 11 yrs, 1 mo on Twitter | 4,051,705 | 52.0% |
| 13. |  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 8 yrs, 5 mos on Twitter | 7,172 | 51.7% |
| 14. |  AstroBetter@astrobetter Blog and Wiki for professional astronomers. astrobetter.com 10 yrs, 4 mos on Twitter | 5,402 | 51.7% |
| 15. |  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, 8 mos on Twitter | 9,553 | 51.3% |
| 16. |  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.… 12 yrs, 0 mos on Twitter | 1,290,836 | 51.0% |
| 17. |  Julianne Dalcanton@dalcantonJD Astrophysicist at the University of Washington. Principal Investigator of the Panchromatic Hubble Andromeda Treasury (PHAT). 7 yrs, 8 mos on Twitter | 7,543 | 51.0% |
| 18. |  Bryan Gaensler 📡🧲@SciBry Astronomer, Director of @DunlapInstitute at @UofT, @LRP2020 cochair. Sci-fi connoisseur, rugby devotee, displaced Antipodean, perplexed parent. Opinions ∉ @UofT Toronto, Canada he/him bryangaensler.net 10 yrs, 1 mo on Twitter | 10,397 | 49.7% |
| 19. |  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 10 yrs, 7 mos on Twitter | 29,777 | 49.4% |
| 20. |  ESA@esa European Space Agency, keeping you posted on European space activities. Europe esa.int 10 yrs, 6 mos on Twitter | 1,000,984 | 48.5% |
| 21. |  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 10 yrs, 6 mos on Twitter | 8,657 | 48.5% |
| 22. |  Dr. Jessie Christiansen@aussiastronomer NASA Research Scientist | #exoplaneteer | #WomenInStem advocate | Science curator at @NASAExoArchive | She/her | Married to @PFHopkins_Astro | Mum of twins Caltech, Pasadena, CA, USA spider.ipac.caltech.edu/staff/christia/ 5 yrs, 8 mos on Twitter | 12,275 | 48.3% |
| 23. |  SpaceX@SpaceX SpaceX designs, manufactures and launches the world’s most advanced rockets and spacecraft Hawthorne, CA spacex.com 10 yrs, 4 mos on Twitter | 8,964,975 | 47.6% |
| 24. |  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 briancoxlive.co.uk 10 yrs, 9 mos on Twitter | 2,935,088 | 46.9% |
| 25. |  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, 11 mos on Twitter | 7,970 | 46.9% |
| 26. |  Sean Carroll@seanmcarroll Physicist, @Caltech & @SFIscience. Author, Something Deeply Hidden & more. Host, #MindscapePodcast. Married to @JenLucPiquant. In favor of truth and kindness. Los Angeles preposterousuniverse.com 10 yrs, 6 mos on Twitter | 237,997 | 46.7% |
| 27. |  Fraser Cain@fcain Publisher of universetoday.com, co-host of astronomycast.com. Named after Asteroid 158092. Courtenay, British Columbia about.me/frasercain 12 yrs, 5 mos on Twitter | 40,842 | 46.7% |
| 28. |  Maria Womack@StarzanPlanets Astrophysicist #observingrun #scipolicy #climatecrisis No pseudoscience. Looking up and out! mariawomack.com 10 yrs, 1 mo on Twitter | 4,530 | 46.4% |
| 29. |  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 10 yrs, 7 mos on Twitter | 2,873,694 | 46.0% |
| 30. |  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 10 yrs, 7 mos on Twitter | 5,315 | 46.0% |
| 31. |  Dr./Prof. Renée Hložek@reneehlozek South African cisgender, bisexual woman Assist. Astrophysics Prof., Rhodes scholar (and lover of loud karaoke), Senior TED Fellow. Feminist scientist. She/her Toronto, Ontario reneehlozek.com 10 yrs, 1 mo on Twitter | 6,188 | 45.7% |
| 32. |  Alex Parker@Alex_Parker Planetary astronomer and artist exploring the origin and history of our solar system. Director of @ESPRESSO_SSERVI, keeper of @RoboHiveTweets. Boulder, Colorado alexharrisonparker.com 10 yrs, 8 mos on Twitter | 30,827 | 45.3% |
| 33. |  ★ 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 11 yrs, 5 mos on Twitter | 9,641 | 45.0% |
| 34. |  Mike Brown@plutokiller Astronomer, planet hunter, Pluto killer, bear whisperer, Finger-wrapped dad. Dangerous secularist. Pasadena, CA mikebrownsplanets.com 10 yrs, 5 mos on Twitter | 63,635 | 44.1% |
| 35. |  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 11 yrs, 1 mo on Twitter | 91,962 | 43.6% |
| 36. |  Prof. Emily Rice, Ph.D.@emilylurice Astronomer at @macaulayhonors, @GC_CUNY, @AMNH, #BDNYC, #CUNYAstro; HQ for @AstronomyOnTap; 1/2 of @startorialist; host ⭐️ of @knitted_bd. Not @djcarlysagan 😜 Occupied Lunaape Land (NYC) emilylrice.me 12 yrs, 0 mos on Twitter | 5,881 | 43.6% |
| 37. |  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, 10 mos on Twitter | 4,616 | 43.6% |
| 38. |  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, 9 mos on Twitter | 24,742 | 43.4% |
| 39. |  MC Stardust ✨ Inclusion Rider 4 Life@Summer_Ash I seem really confident and I talk about space. #lookup #TeamRadio #defectiveheartgirlsolutions 1/2 of @startorialist, opinions=mine (she/her) Moon/New York City summerash.com 9 yrs, 5 mos on Twitter | 13,183 | 43.4% |
| 40. |  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 10 yrs, 7 mos on Twitter | 3,854 | 43.0% |
| 41. |  Michele Bannister@astrokiwi Planetary astronomer, poet, hunter of new & strange worlds. Connoisseur of fuzzy dots of light. Asteroid (10463). @AstroQUB; faculty @UCNZ from 2020. she/her living the life non-sidereal mtbannister.github.io 10 yrs, 6 mos on Twitter | 8,828 | 42.7% |
| 42. |  Brooke Simmons@vrooje Distracted astrophysicist researching galaxies & black holes & other interesting things. Also planetaryresponsenetwork.org lead. (She/her) United Kingdom vrooje.github.io 10 yrs, 11 mos on Twitter | 8,632 | 42.5% |
| 43. |  Dr Pamela L Gay@starstryder Communicating astro & life 1 sidereal day at a time. All opinions & ideas are my own. Support on Patreon.com/starstryder & paypal.me/starstryder Edwardsville, IL starstryder.com 11 yrs, 7 mos on Twitter | 40,184 | 42.3% |
| 44. |  Dr Rachael Livermore@rclivermore Astrophysicist | Science Communicator. She/her. Videos of my public talks at bit.ly/SciTalks London, England rlivermore.com 11 yrs, 2 mos on Twitter | 7,570 | 41.8% |
| 45. |  Dr JJ Eldridge@astro_jje NZ theoretical astrophysicist studying exploding binary stars. Lecturer, Speaker, Sci-fi addict, feminist, enby trans femme. Pronouns: she/her/they. Auckland, New Zealand jjeldridge.blogs.auckland.ac.nz 6 yrs, 4 mos on Twitter | 7,288 | 41.8% |
| 46. |  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 10 yrs, 5 mos on Twitter | 408,042 | 41.6% |
| 47. |  Prof. Abel Méndez@ProfAbelMendez Planetary Astrobiologist and Director of the @PlanetaryHabLab. Looking at habitable worlds from the Arecibo Observatory. #exoplanets #astrobiology #habitability Arecibo, Puerto Rico phl.upr.edu 9 yrs, 10 mos on Twitter | 14,925 | 41.6% |
| 48. |  Elon Musk@elonmusk 10 yrs, 3 mos on Twitter | 28,192,642 | 41.1% |
| 49. |  David Spergel@DavidSpergel Astrophysicist at Princeton University and Flatiron Institute Princeton NJ astro.princeton.edu/~dns 5 yrs, 7 mos on Twitter | 5,621 | 41.1% |
| 50. |  CassiniSaturn@CassiniSaturn Our spacecraft is gone, but the science continues. Join us at @NASASolarSystem for the latest. Saturn, Solar System solarsystem.nasa.gov/cassini 11 yrs, 2 mos on Twitter | 1,641,684 | 40.9% |
| 51. |  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, 9 mos on Twitter | 628,504 | 40.9% |
| 52. |  Catherine Q.@CatherineQ Astrophysicist, science communicator, over-thinker. One of @HuffPostscience Top 30 Physicists to follow. @AucklandUni @ScienceUoA space person. Dogs rule. New Zealand CatherineQ.com 10 yrs, 6 mos on Twitter | 41,449 | 40.9% |
| 53. |  Alessondra Springmann@sondy asteroids, comets, @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 9 yrs, 4 mos on Twitter | 8,656 | 40.9% |
| 54. |  Dr. Tanya Harrison@tanyaofmars 🇨🇦🇺🇸🏳️🌈Professional Martian 🛰Science+Sci-Fi Consultant 🌍Geoscientist @planetlabs 🔴Fmr mission ops @MarsCuriosity, @MarsRovers & more. Views = my own. Toronto / Washington DC tanyaofmars.com 10 yrs, 5 mos on Twitter | 31,371 | 40.6% |
| 55. |  Dr. Chanda Prescod-Weinstein 🙅🏽♀️ 🇧🇧🏳️🌈@IBJIYONGI #BlackandSTEM Assist. Prof of #Physics & #Astro & Black Feminist #HistSTM. agender woman/she. 2021: #DisorderedCosmos from @BoldTypeBooks! tweets by/for me only DurhamNH/CambridgeMA/Wakanda profcpw.com 11 yrs, 3 mos on Twitter | 59,171 | 40.0% |
| 56. |  Peter Edmonds@PeterDEdmonds Work in astronomy publicity after surviving an astrophysics PhD & postdocs. Interested in #science & #scicomm. Opinions are mine & RTs aren't endorsements. peterdedmonds.blogspot.com 7 yrs, 8 mos on Twitter | 4,159 | 40.0% |
| 57. |  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/… 11 yrs, 6 mos on Twitter | 6,308,236 | 39.7% |
| 58. |  SarcasticRover@SarcasticRover Doing a science on the red planet. Not @MarsCuriosity. Portrait by @badportraits. Written by @jfiliatrault. 4th Rock From the Sun 7 yrs, 1 mo on Twitter | 964,725 | 39.7% |
| 59. |  NASA's Juno Mission@NASAJuno Exploring Jupiter to improve our understanding of the planet's origins and the formation of planetary systems. missionjuno.swri.edu nasa.gov/juno Jupiter 10 yrs, 7 mos on Twitter | 753,436 | 39.5% |
| 60. |  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, 8 mos on Twitter | 324,872 | 39.3% |
| 61. |  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, 8 mos on Twitter | 3,554 | 39.3% |
| 62. |  BenneHolwerda@BenneHolwerda Astronomer at large (mostly harmless). University of Louisville. Opinions & typos obv my own. Louisville, KY 11 yrs, 2 mos on Twitter | 2,215 | 39.3% |
| 63. |  Risa Wechsler@RisaWechsler astrophysicist. cosmologist. maker of universes, surveyer of the skies. professor of physics @stanford, director of @kipac1. she/they. talks: bit.ly/risamovies San Francisco risawechsler.com 7 yrs, 0 mos on Twitter | 10,032 | 39.0% |
| 64. |  Planetary Society@exploreplanets We just launched a crowdfunded solar sail on a #SpaceX Falcon Heavy. Join CEO @BillNye and the #LightSail2 mission! Pasadena, CA planetary.org 8 yrs, 11 mos on Twitter | 211,064 | 38.8% |
| 65. |  Sophia Gad-Nasr 🏳️🌈@Astropartigirl I do cosmology and astroparticle theory. I pick apart the Universe to figure out how it works. Science advisor. Feminist. Hamsters rule. She/her 🐶|Los Angeles〉+ 🐹|Irvine〉 astropartigirl.com 9 yrs, 4 mos on Twitter | 34,821 | 38.8% |
| 66. |  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 11 yrs, 1 mo on Twitter | 293,593 | 38.6% |
| 67. |  Sarah Ballard@hubbahubble Habitable worlds, kindness, fiction, etc. At ~75 km/s*Mpc! One half of @drssarahcare Cambridge, MA drballard.space 5 yrs, 7 mos on Twitter | 3,433 | 38.6% |
| 68. |  Prof. Nicole Gugliucci, Doctor of the Sky@NoisyAstronomer Physics professor, education researcher, astronomer, scicommer, advocate for equity in STEM. Geek, crossfitter, dog mom. She/her. 🏳️🌈 Tweets mine; RT≠endorse New Hampshire, USA noisyastronomer.com 11 yrs, 3 mos on Twitter | 21,163 | 38.3% |
| 69. |  Chris Hadfield@Cmdr_Hadfield Canadian Astronaut, back on Earth after 3 spaceflights. For events and media, please write to [email protected] Earth chrishadfield.ca 9 yrs, 0 mos on Twitter | 2,398,932 | 38.1% |
| 70. |  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/… 5 yrs, 0 mos on Twitter | 394,377 | 38.1% |
| 71. |  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 10 yrs, 6 mos on Twitter | 5,289 | 37.9% |
| 72. |  Bill Nye@BillNye Science Rules! Podcast Out Now 🧪 Los Angeles, CA billnyepodcast.com 10 yrs, 4 mos on Twitter | 5,927,763 | 37.6% |
| 73. |  Jedidah Isler, PhD@JedidahIslerPhD Astrophysicist / Professor / Relentless Dreamer / Innovator / Founder & Host @VanguardSTEM / Senior @TEDFellow / @NatGeo Explorer [she] JedidahIslerPhD.com 9 yrs, 1 mo on Twitter | 16,749 | 37.6% |
| 74. |  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 11 yrs, 0 mos on Twitter | 1,959,739 | 37.0% |
| 75. |  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) | 464,492 | 37.0% |
| 76. |  Meg Schwamb@megschwamb Planetary scientist & astronomer at Queen’s University Belfast: KBOs, Planet Four(Mars), MBCs(Comet Hunters),LSST SSSC co-chair. Opinions tweeted are my own Belfast, UK megschwamb.com 9 yrs, 4 mos on Twitter | 5,117 | 37.0% |
| 77. |  Mika McKinnon@mikamckinnon Field geophysicist, disaster researcher, scifi science consultant, science writer, public speaker, irrepressibly curious. #scicomm #womeninSTEM she/her 🇨🇦🇺🇸 West Coast about.me/mikamckinnon 10 yrs, 3 mos on Twitter | 52,962 | 36.7% |
| 78. |  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, 11 mos on Twitter | 20,629 | 36.7% |
| 79. |  Prof Anna Watts@drannawatts 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/ 5 yrs, 3 mos on Twitter | 4,982 | 36.5% |
| 80. |  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… 11 yrs, 2 mos on Twitter | 3,735 | 36.5% |
| 81. |  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 Cambridge, MA mahalonottrash.blogspot.com/2015/05/i-am-o… 6 yrs, 7 mos on Twitter | 2,369 | 36.5% |
| 82. |  Nadia Drake@nadiamdrake Contributing writer @natgeo. Former ballet dancer, slightly obsessed with planets (and MOONS), jungles and spiders. Champagneophile. PhD. 8 yrs, 11 mos on Twitter | 26,425 | 36.3% |
| 83. |  Dr Chiara Mingarelli@Dr_CMingarelli Gravitational-wave astrophysicist. Associate Research Scientist at @FlatironCCA. Views my own. New York, NY chiaramingarelli.com 8 yrs, 6 mos on Twitter | 6,993 | 36.3% |
| 84. |  Shit Academics Say@AcademicsSay A social experiment | @prof_nch chronicle.com/article/Academ… 5 yrs, 11 mos on Twitter | 318,794 | 35.6% |
| 85. |  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 10 yrs, 4 mos on Twitter | 685,759 | 35.3% |
| 86. |  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 Cambridge, MA, USA annafrebel.com 6 yrs, 2 mos on Twitter | 13,267 | 35.1% |
| 87. |  Becky Smethurst@drbecky_ Astrophysicist researching how supermassive black holes affect galaxies. I get overly enthusiastic about space on YouTube: youtube.com/drbecky Oxford, England drbecky.uk.com 10 yrs, 5 mos on Twitter | 7,595 | 35.1% |
| 88. |  Caitlin Casey@astrocaits Astronomer at the University of Texas at Austin🤘🏼, big fan of dust/gas in the Universe (it’s everywhere! it matters!), passionate urban farmer. 🐷🐔😽she/hers Austin, TX as.utexas.edu/~cmcasey 5 yrs, 6 mos on Twitter | 2,666 | 35.1% |
| 89. |  LIGO@LIGO Official Twitter of the LIGO Scientific Collaboration. We detect gravitational waves! YouTube: youtube.com/ligovirgo Livingston, LA and Hanford, WA ligo.org 11 yrs, 3 mos on Twitter | 93,078 | 34.9% |
| 90. |  Alexandra Witze@alexwitze Correspondent for Nature, views my own. Reach me (preferred) witzescience-at-gmaildotcom or (secure) awitze-at-protonmaildotcom. She/her/hers. Boulder, CO alexandrawitze.com 10 yrs, 6 mos on Twitter | 21,405 | 34.9% |
| 91. |  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/about 5 yrs, 9 mos on Twitter | 4,655 | 34.9% |
| 92. |  Ethan Siegel@StartsWithABang The Universe is: Expanding, cooling, and dark. It starts with a bang! #Cosmology Science writer, astrophysicist, author, Forbes & NASA columnist. Portland, OR forbes.com/sites/startswi… 8 yrs, 5 mos on Twitter | 16,574 | 34.6% |
| 93. |  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, 10 mos on Twitter | 387,800 | 34.2% |
| 94. |  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 10 yrs, 7 mos on Twitter | 554,795 | 33.9% |
| 95. |  Matthew R "Who Owns An Asteroid?" Francis@DrMRFrancis Writer of physics and astronomy. Wearer of jaunty hats. Pledge to my comics collection with @ScienceComic : unbound.com/books/who-owns… . He/him. bowlerhatscience.org 9 yrs, 0 mos on Twitter | 21,860 | 33.9% |
| 96. |  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, 8 mos on Twitter | 4,973 | 33.9% |
| 97. |  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 10 yrs, 5 mos on Twitter | 2,763 | 33.9% |
| 98. |  ESA Gaia@ESAGaia Science with 1 billion objects in three dimensions ESA cosmos.esa.int/gaia 10 yrs, 6 mos on Twitter | 22,022 | 33.7% |
| 99. |  Jackie Faherty@jfaherty Astrophysicist at @AMNH. Enthusiast for bringing the cosmos to the public @backyardworlds #womeninscience #BDNYC #manhattanhenge calculator. #scicomm jackiefaherty.com 10 yrs, 5 mos on Twitter | 5,052 | 33.7% |
| 100. |  Sam @ RealScientists@realscientists Real science from real scientists, writers, communicators, artists & clinicians. This week: cell biologist and yeast enthusiast Sam Dundon | @serdundon Everywhere realscientists.org 6 yrs, 7 mos on Twitter | 81,797 | 33.5% |
| 101. |  Robert McNees@mcnees Professor, physicist, sci comm. Black holes, quantum gravity, cosmology. Rocky Top. Tar Heel. RT = spooky action at a distance. Opinions are mine alone. He/him. Chicago, z=0 jacobi.luc.edu 11 yrs, 2 mos on Twitter | 15,579 | 33.5% |
| 102. |  Emily Levesque 🤓✨🔭📚@emsque Astronomy prof, author, weird star enthusiast | THE LAST STARGAZERS, my book of astronomy stories & adventures, is coming in 2020! thelaststargazers.com Seattle, WA emlevesque.com 9 yrs, 6 mos on Twitter | 3,771 | 33.5% |
| 103. |  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 10 yrs, 3 mos on Twitter | 3,484 | 33.5% |
| 104. |  Dan F-M@exoplaneteer I write code for good & astrophysics. NYC dfm.io 8 yrs, 1 mo on Twitter | 2,909 | 33.3% |
| 105. |  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 11 yrs, 2 mos on Twitter | 2,567,149 | 33.0% |
| 106. |  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/ 10 yrs, 7 mos on Twitter | 165,775 | 33.0% |
| 107. |  Prof. Lisa Harvey-Smith@lisaharveysmith Astrophysicist, Australian Govt. Women in STEM Ambassador, Author #WhenGalaxiesCollide, #UnderTheStars, @ABCtv Stargazing Live presenter, Ultramarathoner. 🌈 Australia lisaharveysmith.com 7 yrs, 10 mos on Twitter | 18,298 | 33.0% |
| 108. |  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/ 10 yrs, 6 mos on Twitter | 1,342 | 33.0% |
| 109. |  Universe Today@universetoday Universe Today - universetoday.com, a website about space and astronomy. Tweets are probably coming from @fcain Courtenay, British Columbia universetoday.com 10 yrs, 6 mos on Twitter | 291,790 | 32.8% |
| 110. |  Dr. Jennifer L. Hoffman ✨@astroprofhoff Astronomer, associate professor, alto, auntie, ailurophile. She/her. University of Denver Denver, CO grammai.org/jhoffman/ 5 yrs, 8 mos on Twitter | 3,081 | 32.8% |
| 111. |  Dr Jess Wade 👩🏻🔬@jesswade 제시카 physics postdoc @imperialcollege. @500womensci/ @wes1919/ @physicsnews/ @wikipedia enthusiast. she / her. 💜 🔬,🦋+💎s. least useful doctor in my family. London, England gofundme.com/challenge-bias… 10 yrs, 6 mos on Twitter | 33,696 | 32.6% |
| 112. |  Royal Astronomical Society@RoyalAstroSoc We encourage & promote astronomy, solar-system science & geophysics in the UK & worldwide. Tweets by @RobertMMassey, @yelizrifat, @lucywimss & @MorganDJHollis Burlington House, London ras.ac.uk 9 yrs, 5 mos on Twitter | 30,413 | 32.6% |
| 113. |  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 10 yrs, 5 mos on Twitter | 2,446 | 32.6% |
| 114. |  Peter Coles 🇪🇺 🇮🇪 🏳️🌈 🇬🇧 🎷 🎶@telescoper Theoretical astrophysicist specialising in the Universe and all that surrounds it: jazz, opera, poetry & crosswords. Beard of the Year 2018. Girly Swot. #FBPE Maynooth, Co Kildare, Ireland telescoper.wordpress.com 9 yrs, 10 mos on Twitter | 6,087 | 32.3% |
| 115. |  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 10 yrs, 3 mos on Twitter | 2,280 | 32.3% |
| 116. |  Dr. Emily Petroff@ebpetroff Astronomer.Reader.Random number generator. Veni Fellow studying fast radio bursts 📡💥 at the University of Amsterdam in the API 🏳️🌈 The Netherlands ebpetroff.com 6 yrs, 2 mos on Twitter | 9,336 | 32.1% |
| 117. |  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 10 yrs, 4 mos on Twitter | 8,580 | 32.1% |
| 118. |  Meredith Rawls@merrdiff Stellar astronomer and data management for @LSST. Also: mom, scicommer, violist, Episcopalian. Keep looking up. (She/her) Seattle, WA faculty.washington.edu/mrawls 9 yrs, 6 mos on Twitter | 5,284 | 32.1% |
| 119. |  David Kipping@david_kipping Exoplanets & Exomoons, Cool Worlds Lab, Columbia University Manhattan, NY coolworlds.astro.columbia.edu 10 yrs, 6 mos on Twitter | 4,631 | 32.1% |
| 120. |  New Scientist@newscientist The best place to find out what’s new in science – and why it matters. Tweets by @SoMe_Lilian. Subscribe here: https://t.co/39g6XuLDoZ Worldwide newscientist.com 10 yrs, 7 mos on Twitter | 3,518,111 | 31.9% |
| 121. |  Alan Stern@AlanStern Scientist. Space Explorer. Author. Speaker, Optimist. Pilot. Dad. Not necessarily in that order. Follow my New Horizons Twitter feed @NewHorizons2015 too! Niwot, CO alanstern.space 11 yrs, 1 mo on Twitter | 38,351 | 31.9% |
| 122. |  Dr Jane MacArthur@Jane_MacArthur Planetary scientist studying @UKAntarcticMets, martian meteorites and comet Stardust. Fellow & elected Councillor @RoyalAstroSoc #RAS200 #Violinist #FCA Manchester janemac.org 10 yrs, 7 mos on Twitter | 7,369 | 31.9% |
| 123. |  Kevin Schawinski@kevinschawinski Co-founder/CEO @modulos_ai Zurich, Switzerland modulos.ai 8 yrs, 7 mos on Twitter | 4,547 | 31.9% |
| 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 8 yrs, 4 mos on Twitter | 13,926 | 31.6% |
| 125. |  Astro Union@IAU_org Founded in 1919, the International Astronomical Union (IAU) promotes and safeguards the science of astronomy through international cooperation. iau.org 5 yrs, 3 mos on Twitter | 8,548 | 31.6% |
| 126. |  Jason Wright@Astro_Wright Professor of Astronomy and Astrophysics at Penn State. Son, husband, father, scientist, teacher, student, human. Mostly posting astronomy. Mostly. State College, PA, USA sites.psu.edu/astrowright/ 6 yrs, 11 mos on Twitter | 6,380 | 31.6% |
| 127. |  James Davenport@jradavenport Astronomer, maker of data and science things, Dad. Studying stars, looking for aliens. All opinions are my own. Seattle, WA ifweassume.com 7 yrs, 3 mos on Twitter | 2,775 | 31.6% |
| 128. |  Johanna@johannateske Astronomer, runner, educator, feminist, vegan, #Nats fan, she/her/hers Pasadena, CA johannateske.virb.com 5 yrs, 8 mos on Twitter | 2,359 | 31.6% |
| 129. |  Buzz Aldrin@TheRealBuzz Celebrating 50 Yrs of Apollo @ RoadtoApollo50th.com; Gemini 12 & Apollo XI Astronaut & Moonwalker; West Point; USAF Col, Korean War Vet; MIT Founder buzzaldrin.com 10 yrs, 3 mos on Twitter | 1,480,054 | 31.4% |
| 130. |  Alan Duffy@astroduff A/Professor in Astrophysics at @Swinburne and Lead Scientist of @RiAus Instagram.com/profalanduffy Melbourne riaus.org.au 7 yrs, 2 mos on Twitter | 21,367 | 31.4% |
| 131. |  Jason Major@JPMajor Space. Planets. NASA. Science. Rocketry. Astronomy. Democracy. Nature. Birds. Coffee. Occasionally funny. He/him. (It, but only if you’re an alien.) Warwick, RI lightsinthedark.com 9 yrs, 8 mos on Twitter | 32,463 | 31.2% |
| 132. |  David Grinspoon@DrFunkySpoon Astrobiologist, Author, Musician. 👽🚀🎸🎵🌎❤️ Biosphere One funkyscience.net 7 yrs, 11 mos on Twitter | 24,239 | 31.2% |
| 133. |  Brian Keating@DrBrianKeating Chancellor’s Professor of Physics @UCSanDiego Dir: @SimonsObs Assoc. Dir:@imagineUCSD. Author LOSING THE NOBEL PRIZE https://t.co/tcM4dZj8u5 @WWNorton @tantoraudio San Diego, CA briankeating.com 8 yrs, 11 mos on Twitter | 7,815 | 31.2% |
| 134. |  Marc Kuchner@marckuchner NASA Citizen Science Lead, Astrophysicist, Songwriter. Greenbelt, MD marketingforscientists.com 10 yrs, 9 mos on Twitter | 5,710 | 31.2% |
| 135. |  James Bullock@jbprime Dean @UCIPhysSci, Professor @UCIPhysAstro, #UCIrvine astrophysics & cosmology. Sometimes mumbler on @ScienceChannel #HTUW Irvine, California, USA physics.uci.edu/~bullock/ 10 yrs, 1 mo on Twitter | 4,288 | 31.2% |
| 136. |  Elisabeth Newton@EllieInSpace Astronomer, educator and assistant professor @Dartmouth College. Also a climber, baker, crafter & @astrobites co-founder. She/her. Hanover, NH dartmouth.edu/~ernewton 8 yrs, 3 mos on Twitter | 2,393 | 31.2% |
| 137. |  Adam Burgasser@browndwarfs astrophysicist, professor, and preferably in the water. on a plane, or San Diego pono.ucsd.edu/~adam 9 yrs, 0 mos on Twitter | 1,964 | 31.2% |
| 138. |  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… 9 yrs, 6 mos on Twitter | 1,716 | 31.2% |
| 139. |  Scientific American@sciam Awesome discoveries. Expert insights. Science that shapes the world. New York City scientificamerican.com 11 yrs, 4 mos on Twitter | 3,769,999 | 30.9% |
| 140. |  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 10 yrs, 7 mos on Twitter | 6,574 | 30.7% |
| 141. |  Sloan Digital Sky Surveys@sdssurveys Tweeting about mapping the Universe @APOGEEsurvey @eBOSSurvey @MaNGASurvey Apache Point Observatory. sdss.org 6 yrs, 7 mos on Twitter | 4,718 | 30.7% |
| 142. |  Alexandria Ocasio-Cortez@AOC Congresswoman for NY-14 (the Bronx & Queens). In a modern, moral, and wealthy society, no American should be too poor to live. 💯% People-Funded, no lobbyist💰. Bronx + Queens, NYC Ocasio2018.com 9 yrs, 4 mos on Twitter | 5,328,164 | 30.5% |
| 143. |  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 9 yrs, 4 mos on Twitter | 585,940 | 30.3% |
| 144. |  Dr. Phil Metzger@DrPhiltill Planetary scientist at @UCF. CoFounder NASA KSC SwampWorks. Space Mining. Space Settlement. Science. Instagram @drphiltill Orlando, FL philipmetzger.com 6 yrs, 9 mos on Twitter | 73,782 | 30.0% |
| 145. |  Corey S. Powell@coreyspowell Casting pods with @BillNye on Science Rules. Making magazines @discovermag and @AmSciMag. Writing all around. Science-curious. Brooklyn, NY discovermagazine.com/outthere 10 yrs, 6 mos on Twitter | 67,748 | 30.0% |
| 146. |  Shannon Stirone 💀@shannonmstirone Writer. Art Historian. Find me in @NYTimes @washingtonpost @PopSci @ozm @TheAtlantic @NatGeo @NewRepublic @RollingStone @Wired @Longreads. Opinions are mine. Bay Area, CA shannonstirone.com 5 yrs, 1 mo on Twitter | 20,872 | 30.0% |
| 147. |  James Tuttle Keane@jtuttlekeane postdoc at @Caltech 📚 | geophysics of rocky & icy worlds 🌔 | planetary missions 🚀 | science illustrator 🎨 | trekkie 🖖 | dog dad 🐶 | he/him | 🏳️🌈 Pasadena, CA jamestuttlekeane.com 5 yrs, 5 mos on Twitter | 6,351 | 30.0% |
| 148. |  Jessica Kirkpatrick@berkeleyjess +‒‒‒—‒‒ Jessica Ann Kirkpatrick, PhD ‒‒‒‒‒‒+ +‒‒‒‒— Astrophysicist → Data Scientist ‒‒‒‒—+ @kittyplanets #catmom #scientist #techie #writer San Francisco, CA berkeleyjess.blogspot.com 10 yrs, 2 mos on Twitter | 5,107 | 30.0% |
| 149. |  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 10 yrs, 4 mos on Twitter | 1,383,549 | 29.8% |
| 150. |  Prof. Lucie Green@Dr_Lucie Royal Society Research Fellow, physics Prof at UCL, chair of governors @ucl_academy. Sun & space. Chief Stargazer @popastro. Book: amzn.to/2nitfmi UK luciegreen.com 9 yrs, 3 mos on Twitter | 21,051 | 29.8% |
| 151. |  LSST Astronomy@LSST The widest, fastest, deepest eye of the new digital age. Cerro Pachon, Chile lsst.org 11 yrs, 1 mo on Twitter | 6,486 | 29.8% |
| 152. |  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~) Japan about.me/elizabethtasker 7 yrs, 10 mos on Twitter | 3,565 | 29.8% |
| 153. |  Hannah Wakeford@StellarPlanet (she/her) Exoplanet explorer learning about their atmospheres | Giacconi Fellow @STScI/@AURADC, @exo_cast podcaster & @BSACDIVER | Expressed opinions are my own stellarplanet.org 7 yrs, 11 mos on Twitter | 2,788 | 29.8% |
| 154. |  Ruth Angus@ruthangus Curator & Prof. of Astrophysics at the American Museum of Natural History @AMNH & Flatiron Institute @FlatironCCA. I study stars and exoplanets. New York, NY ruthangus.github.io 8 yrs, 4 mos on Twitter | 1,770 | 29.8% |
| 155. |  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 12 yrs, 5 mos on Twitter | 1,167,180 | 29.6% |
| 156. |  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 10 yrs, 0 mos on Twitter | 62,299 | 29.6% |
| 157. |  Haley Gomez@astrofairy I'm an Astrophysicist, love books, films astronomy, shoes and dresses. Cardiff haley.gomez.me.uk 9 yrs, 9 mos on Twitter | 3,025 | 29.6% |
| 158. |  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 8 yrs, 2 mos on Twitter | 2,493 | 29.6% |
| 159. |  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 2 yrs, 7 mos on Twitter | 853,590 | 29.3% |
| 160. |  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, 10 mos on Twitter | 705,299 | 29.3% |
| 161. |  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, 10 mos on Twitter | 20,393 | 29.3% |
| 162. |  Tim Peake@astro_timpeake British ESA astronaut & test pilot back on Earth after 6 months in space. Cologne, Germany timpeake.com 7 yrs, 5 mos on Twitter | 1,607,396 | 29.1% |
| 163. |  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 10 yrs, 1 mo on Twitter | 123,079 | 29.1% |
| 164. |  Ian O'Neill@astroengine Just an astrophysicist/atheist/liberal Englishman pondering how to save the world. Editor of @AstroSocietyPac's #MercuryOnline. Star stuff, eventual star chum Woodland Hills, Los Angeles astroengine.com 11 yrs, 1 mo on Twitter | 36,466 | 29.1% |
| 165. |  TrueSciPhi / Kelly Truelove@TrueSciPhi A window on science, philosophy, and mathematics communities on social media, by Kelly Truelove (physics PhD). Photo info at instagram.com/TrueSciPhi. Austin, Texas TrueSciPhi.org 4 yrs, 3 mos on Twitter | 7,124 | 29.1% |
| 166. |  Jesse Shanahan@Enceladosaurus Data scientist @BoozAllen. Astrophysicist. Passions: #AIEthics, video/boardgame #a11y, & 🍟. Cofounded @AAS_WGAD, created #disabledandSTEM. #EhlersDanlos Washington, DC enceladosaur.us 8 yrs, 3 mos on Twitter | 5,681 | 29.1% |
| 167. |  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 7 yrs, 7 mos on Twitter | 2,720 | 29.1% |
| 168. |  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 | 29.1% |
| 169. |  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/ 11 yrs, 3 mos on Twitter | 3,481 | 28.9% |
| 170. |  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, 10 mos on Twitter | 236,116 | 28.6% |
| 171. |  Robert Simpson@orbitingfrog Googler, astronomer, TED Fellow. Views are my own. UK orbitingfrog.com 12 yrs, 4 mos on Twitter | 30,942 | 28.6% |
| 172. |  Dr Erin Ryan@erinleeryan Doctor of the flying space rocks who sciences data, curser of #Python, prez of Science on Cake Appreciation Society, collector of orchid plants, tweets mine. The shores of the crab infeste erinleeryan.com 10 yrs, 0 mos on Twitter | 3,119 | 28.6% |
| 173. |  John O'Meara@astronomeara Father, Astronomer, science policy nerd. Chief Scientist @keckobservatory Cosmic Origins Science Lead for #LUVOIR Chair AAAC. Tweets are my own Kamuela, Hawaii 10 yrs, 0 mos on Twitter | 1,624 | 28.6% |
| 174. |  ESA Operations@esaoperations From Earth orbit to deep space: sharing the excitement of realtime mission operations at the European Space Agency #WhereMissionsComeAlive 🛰🕹️ https://t.co/nXylkoeHq7 Darmstadt, Germany 10 yrs, 9 mos on Twitter | 281,927 | 28.4% |
| 175. |  SAO/NASA ADS@adsabs adsabs.harvard.edu 8 yrs, 8 mos on Twitter | 2,621 | 28.4% |
| 176. |  Adrian Price-Whelan@adrianprw astrophysics postdoc @ Flatiron Institute; galaxy dynamics, binary stars; likes making and listening to music; github.com/adrn new york, ny adrian.pw 8 yrs, 3 mos on Twitter | 2,356 | 28.4% |
| 177. |  Scott Kelly@StationCDRKelly Ret US Navy Capt & Former NASA Astronaut | #YearInSpace | @KepplerSpeakers | NY Times Bestselling Author |#EnduranceMemoir #InfiniteWonder #MyJourneyToTheStars Earth scottkelly.com 10 yrs, 0 mos on Twitter | 5,605,474 | 28.2% |
| 178. |  PHD Comics@PHDcomics Life (or the lack thereof) in Academia. Comic strip by Jorge Cham. Instagram.com/phd_comics phdcomics.com 11 yrs, 1 mo on Twitter | 235,548 | 28.2% |
| 179. |  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, 11 mos on Twitter | 22,865 | 28.2% |
| 180. |  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 9 yrs, 0 mos on Twitter | 6,408 | 28.2% |
| 181. |  WomanAstro@womanastronomer Promoting astronomy, encouraging women/girls interested in science. WomanAstro.com, etsy.com/shop/WomanAstro New Mexico, USA WomanAstro.com 9 yrs, 9 mos on Twitter | 4,997 | 28.2% |
| 182. |  Eric Mamajek@EricMamajek Astronomer, dad, stars, (exo)planets. Statements and opinions posted here are my own. Email me directly, I don't respond to Twitter DM. Pasadena, CA 8 yrs, 7 mos on Twitter | 2,436 | 28.2% |
| 183. |  Matthew Kenworthy@mattkenworthy Associate Professor of Astronomy at Leiden Observatory - exoplanet imaging and giant ring transit searches. Keen on giving public talks and outreach. Leiden, The Netherlands kenworthy.space 8 yrs, 10 mos on Twitter | 2,090 | 28.2% |
| 184. |  Joss Bland-Hawthorn@JossBlandHawtho All things novel, astrophysical, mathematical, technological. Sydney, Australia physics.usyd.edu.au/~jbh/ 5 yrs, 3 mos on Twitter | 2,044 | 28.2% |
| 185. |  SPACE.com@SPACEdotcom News coverage and conversation about space science, astronomy and exploration. Part of @futureplc NYC SPACE.com 11 yrs, 1 mo on Twitter | 766,371 | 27.9% |
| 186. |  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 11 yrs, 2 mos on Twitter | 487,369 | 27.9% |
| 187. |  BlackPhysicists@BlackPhysicists Arlington, VA and Worldwide 10 yrs, 3 mos on Twitter | 20,618 | 27.9% |
| 188. |  Priyamvada Natarajan@SheerPriya @Yale astrophysicist, works on exotica in the universe: dark matter, black holes; Author: Mapping the Heavens • https://t.co/DuzePWpq2N New Haven, CT amazon.com/gp/aw/d/030020… 3 yrs, 6 mos on Twitter | 11,338 | 27.9% |
| 189. |  .Astronomy@dotastronomy Conference series about what happens when hackers, astronomers and the web all get together. Toronto, Ontario dotastronomy.com 11 yrs, 3 mos on Twitter | 4,006 | 27.9% |
| 190. |  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… 10 yrs, 1 mo on Twitter | 3,099 | 27.9% |
| 191. |  National Science Foundation@NSF Explore #NSFfunded research that is transforming the world. / Social media policy: bit.ly/smpnsf Alexandria, VA nsf.gov 11 yrs, 0 mos on Twitter | 1,155,939 | 27.7% |
| 192. |  Science Friday@scifri Brain fun, for curious people. Hosted by @iraflatow. From @WNYCStudios. New York, New York sciencefriday.com 10 yrs, 10 mos on Twitter | 764,253 | 27.7% |
| 193. |  HubbleTelescope@HubbleTelescope News from the Hubble Space Telescope operated by @stsci hubblesite.org/news 11 yrs, 2 mos on Twitter | 141,704 | 27.7% |
| 194. |  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 9 yrs, 0 mos on Twitter | 560,717 | 27.5% |
| 195. |  Jo Dunkley@j_dunkley Professor of Physics and Astrophysics at Princeton. Author of Our Universe. Princeton, NJ physics.princeton.edu/~jdunkley 7 yrs, 11 mos on Twitter | 3,563 | 27.5% |
| 196. |  Dr. Abbie 🍂@abigailStev Lady scientist (she/her) 👩🏻💻 NSF fellow @msu_astro & @michiganastro 🔭 compact objects 💥 #OpenSource 🐍 #BiInSci 💖 mastodon:alstev 🐘tweets≠NSF,MSU,UM Anishinaabeg/Odawa land abigailstevens.com 8 yrs, 7 mos on Twitter | 2,138 | 27.5% |
| 197. |  Erik Tollerud@eteq Astrophysicist, Python coder, and general lover of nature in all its forms. Opinions are my own. He/him/his. Baltimore, MD stsci.edu/~etollerud 10 yrs, 3 mos on Twitter | 1,943 | 27.5% |
| 198. |  Laura Lopez@ohdearz Astronomy professor @ohiostate studying birth & death of stars with all of the telescopes. She/her 6 yrs, 10 mos on Twitter | 1,834 | 27.5% |
| 199. |  Bruce Macintosh@bmac_astro Stanford professor. Astronomer: exoplanets, instruments, astropolicy. Sarcasm and golden retrievers. Principal investigator for the Gemini Planet Imager Stanford, CA 1 yr, 10 mos on Twitter | 1,427 | 27.5% |
| 200. |  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 5 yrs, 4 mos on Twitter | 1,387 | 27.5% |
| 201. |  STEMLORD@upulie Zombie Snail Thought Leader | purveyor of finest quality theoretical apocalypses| Scientist | [email protected]| Aussie in Kiwi Auckland, New Zealand patreon.com/upulie 9 yrs, 0 mos on Twitter | 38,687 | 27.3% |
| 202. |  Lisa Grossman@astrolisa Astronomy reporter at Science News, lifelong astronomy nerd. Ideas my own. She/her/hers Cambridge, MA 10 yrs, 6 mos on Twitter | 9,001 | 27.3% |
| 203. |  Stuart@astronomyblog Maker of things. Data wrangler. Co-author of "Cosmos: The Infographic Book of Space". Gone far on a bicycle. ✨📡🛰📕📊📈🗺️🚲🏳️🌈 He/him Yorkshire cosmos-book.github.io 12 yrs, 3 mos on Twitter | 8,096 | 27.3% |
| 204. |  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, 9 mos on Twitter | 5,367 | 27.3% |
| 205. |  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 6 yrs, 3 mos on Twitter | 2,804,565 | 27.0% |
| 206. |  Benjamin Pope@fringetracker Astronomer - he/him Manhattan, NY benjaminpope.github.io 6 yrs, 8 mos on Twitter | 2,594 | 27.0% |
| 207. |  Institute of Physics@PhysicsNews The Institute of Physics is a leading scientific membership society working to advance physics for the benefit of all. UK beta.iop.org 10 yrs, 4 mos on Twitter | 173,032 | 26.8% |
| 208. |  Samantha Cristoforetti@AstroSamantha @ESA astronaut. ISS Exp 42/43 Book in Italian amzn.to/2xNnkc6. In German tiny.cc/3wd3bz. In English in 2020! Proceeds to @Unicef. Europe samanthacristoforetti.esa.int 8 yrs, 1 mo on Twitter | 979,023 | 26.6% |
| 209. |  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 7 yrs, 5 mos on Twitter | 120,583 | 26.6% |
| 210. |  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 10 yrs, 5 mos on Twitter | 107,859 | 26.6% |
| 211. |  American Astronomical Society (AAS)@AAS_Office Official account of the American Astronomical Society. Its mission is to enhance & share humanity's scientific understanding of the universe. Tweet≠endorsement Washington, DC, USA aas.org 8 yrs, 9 mos on Twitter | 3,866 | 26.6% |
| 212. |  Astropy@astropy This is the official twitter account for the Astropy project. Earth astropy.org 8 yrs, 1 mo on Twitter | 3,155 | 26.6% |
| 213. |  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 10 yrs, 4 mos on Twitter | 1,513 | 26.6% |
| 214. |  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… 9 yrs, 1 mo on Twitter | 31,755 | 26.3% |
| 215. |  ☄Ashley🔭Lindalía☄@That_Astro_Chic 🚀🔭📡Astrochemist⚗🧪🔬|Planetary Scientist👩🏾🔬🌍|The Realest In The Streets|Rapper on Weekends🤦🏾♀️😂🤷🏾♀️|Magical & Trill💫|❤🖤💚#BlackandSTEM✊🏾✊🏿✊🏽 Chicago, IL, USA,🌍 8 yrs, 7 mos on Twitter | 5,692 | 26.3% |
| 216. |  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. Wassenaar, The Netherlands 4 yrs, 1 mo on Twitter | 5,665 | 26.3% |
| 217. |  WIRED Science@WIREDScience Bringing the radiothermally generated heat. The team: @sandraupson, @JetJocko, @rtg0nzalez, @MeganMolteni, @MrMattSimon, @dmoberhaus San Francisco, California wired.com/category/wired… 11 yrs, 11 mos on Twitter | 2,025,088 | 26.1% |
| 218. |  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 6 yrs, 0 mos on Twitter | 51,209 | 26.1% |
| 219. |  Matt Taylor@mggtTaylor I work at the European Space Agency on Rosetta, Space plasma stuff, Swarm, Cluster and now dabbling with the Gateway. 501st Dutch Garrison TK67676 EIB Netherlands 6 yrs, 11 mos on Twitter | 33,124 | 26.1% |
| 220. |  Dr Tabetha Boyajian@tsboyajian Assistant professor of Astrophysics at #LSU. disrupter of astrophysics; #BoyajiansStar #TabbysStar; all posts here are my own Baton Rouge, LA wherestheflux.com 10 yrs, 1 mo on Twitter | 9,832 | 26.1% |
| 221. |  Giant Magellan@GMTelescope A next-generation “Extremely Large Telescope” seeking to unlock the mysteries of the universe. Las Campanas, Chile gmto.org 8 yrs, 3 mos on Twitter | 6,535 | 26.1% |
| 222. |  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, 7 mos on Twitter | 139,596 | 25.9% |
| 223. |  Jonathan Amos@BBCAmos BBC Science Correspondent Cambridge, UK bbcnews.com 9 yrs, 7 mos on Twitter | 44,266 | 25.9% |
| 224. |  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, 11 mos on Twitter | 13,190 | 25.9% |
| 225. |  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) | 14,977,369 | 25.6% |
| 226. |  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. Asteroid Bennu AsteroidMission.org 11 yrs, 2 mos on Twitter | 82,954 | 25.6% |
| 227. |  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 12 yrs, 3 mos on Twitter | 38,286 | 25.6% |
| 228. |  Thomas Zurbuchen@Dr_ThomasZ Associate Administrator, @NASA Science Mission Directorate Washington, DC science.nasa.gov 8 yrs, 6 mos on Twitter | 25,891 | 25.6% |
| 229. |  SquareKilometreArray@SKA_telescope The SKA will be the world's largest radio telescope, located in Africa & Australia. Tweets from the SKA's Global Headquarters in the UK. Australia and South Africa skatelescope.org 8 yrs, 11 mos on Twitter | 20,813 | 25.6% |
| 230. |  Dr Jen Gupta@jen_gupta Professional space nerd. Expect astronomy, physics, science, sci-fi, outreach, public engagement, dogs, parenting, emo & general geekiness. Own views. [she/her] Winchester, UK jengupta.com 10 yrs, 1 mo on Twitter | 4,932 | 25.6% |
| 231. |  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, 9 mos on Twitter | 2,046 | 25.6% |
| 232. |  Liz B ☆@astro_Liz X-ray and Optical Astronomer at @ESO. ex Instrument Scientist. Bleeding heart liberal & intersectional feminist. All views my own. Ⓥ #WomenInScience She/Her Edinburgh, Scotland 7 yrs, 6 mos on Twitter | 1,728 | 25.6% |
| 233. |  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 4 yrs, 7 mos on Twitter | 6,975 | 25.4% |
| 234. |  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) | 1,103,624 | 25.2% |
| 235. |  Nancy Atkinson@Nancy_A Science journalist & author of new book on Apollo, "Eight Years to the Moon," amazon.com/gp/product/162… Minnesota nancyatkinson.com 11 yrs, 2 mos on Twitter | 11,496 | 25.2% |
| 236. |  Moiya McTier@GoAstroMo Astrophysicist & Science communicator | she/her 💫 #scicomm | #BiInSci | #BlackAndSTEM 💫 Tryna be the next @BillNye New York, NY moiyamctier.com 5 yrs, 2 mos on Twitter | 3,302 | 25.2% |
| 237. |  Dr. Brian May@DrBrianMay Rocket Ship Builder 🚀🚀🚀🚀🚀 brianmay.com 6 yrs, 11 mos on Twitter | 1,005,978 | 24.9% |
| 238. |  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 5 yrs, 1 mo on Twitter | 73,970 | 24.9% |
| 239. |  Sabine Hossenfelder@skdh Physicist, blogger, author. Sometimes-songwriter, nighttime-philosopher. Maker of my own misery. she/her Germany backreaction.blogspot.com 11 yrs, 9 mos on Twitter | 29,515 | 24.9% |
| 240. |  Rose DF@_Astro_Nerd_ Physics and Astronautics | Isleña Quisqueyana | The cosmos is my happy place | La cosa no es quien me va a dejar, es quien me detendrá. | Avi: @Glowsinthedark9 New York, NY - She/Her about.me/rosedf 5 yrs, 0 mos on Twitter | 18,813 | 24.9% |
| 241. |  galaxyzoo@galaxyzoo It's Galaxy Zoo! galaxyzoo.org 10 yrs, 8 mos on Twitter | 13,636 | 24.9% |
| 242. |  Andy Rivkin@asrivkin Planetary astronomer on #TeamAsteroid; Gedankenband member and guitarist; Persistently Obstreperous. #USAstronomyGoodwillAmbassador ⊗ imperturbable-music.blogspot.com 11 yrs, 3 mos on Twitter | 5,034 | 24.9% |
| 243. |  Hillary Clinton@HillaryClinton 2016 Democratic Nominee, SecState, Senator, hair icon. Mom, Wife, Grandma x3, lawyer, advocate, fan of walks in the woods & standing up for our democracy. New York, NY onwardtogether.org 6 yrs, 5 mos on Twitter | 25,372,759 | 24.7% |
| 244. |  Stephen Colbert@StephenAtHome the guy on CBS 10 yrs, 11 mos on Twitter | 18,607,217 | 24.7% |
| 245. |  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, 7 mos on Twitter | 179,874 | 24.7% |
| 246. |  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 3 yrs, 0 mos on Twitter | 10,081 | 24.7% |
| 247. |  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, 8 mos on Twitter | 1,833 | 24.7% |
| 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 10 yrs, 6 mos on Twitter | 1,065,503 | 24.5% |
| 249. |  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 10 yrs, 5 mos on Twitter | 254,553 | 24.5% |
| 250. |  Amy Mainzer@AmyMainzer Scientist University of Arizona science.jpl.nasa.gov/people/Mainzer/ 6 yrs, 6 mos on Twitter | 26,906 | 24.5% |
| 251. |  Andrew Pontzen@apontzen I do cosmology. Previously music. Prof at UCL, funded by Royal Society and ERC. Tweeting in a personal capacity: it’s no-one else’s fault when I talk nonsense. London andrew.pontzen.uk 9 yrs, 1 mo on Twitter | 3,326 | 24.5% |
| 252. |  Caroline Morley@AstroCaroline Assistant Prof at UT Austin, modeler of substellar atmospheres Austin, TX carolinemorley.com 6 yrs, 11 mos on Twitter | 2,058 | 24.5% |
| 253. |  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 8 yrs, 4 mos on Twitter | 2,057 | 24.5% |
| 254. |  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, 8 mos on Twitter | 1,588 | 24.5% |
| 255. |  XKCD Comic@xkcdComic XKCD comic feed with images, mobile friendly links, and what-if articles. Unofficial, run by @dghubble xkcd.com 5 yrs, 8 mos on Twitter | 238,570 | 24.2% |
| 256. |  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 9 yrs, 4 mos on Twitter | 129,803 | 24.2% |
| 257. |  Dan Hooper@DanHooperAstro Physicist and author at Fermilab and the University of Chicago Chicago, IL 1 yr, 9 mos on Twitter | 6,073 | 24.2% |
| 258. |  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, 8 mos on Twitter | 4,411 | 24.2% |
| 259. |  Robert Massey@RobertMMassey Dad, Deputy Director @royalastrosoc, chair @lightyear_fdn. Co-author of Moon: Art, Science, Culture with @saschaloske. See bit.ly/2PpjMn0 #FBPE he/him Bristol (Southville) & London 10 yrs, 1 mo on Twitter | 3,150 | 24.2% |
| 260. |  Mark Marley@astromarkmarley Astronomer working for a well known national space agency. Interests include extrasolar planets, brown dwarfs, giant planets. Opinions are mine alone. Mountain View, California google.com/profiles/Mark.… 9 yrs, 1 mo on Twitter | 2,602 | 24.2% |
| 261. |  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/ Auld Reekie roe.ac.uk/~al 9 yrs, 5 mos on Twitter | 2,069 | 24.2% |
| 262. |  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, 8 mos on Twitter | 58,260 | 24.0% |
| 263. |  Emma Chapman@DrEOChapman Astrophysicist, Royal Society Research Fellow, Imperial College London. Exhausted campaigner on sexual misconduct in HE. London, England dremmachapman.wordpress.com 2 yrs, 11 mos on Twitter | 4,327 | 24.0% |
| 264. |  Radio Astrology@RadioAstrology Opening new windows in the prediction spectrum. Astrology at long wavelengths. In the stars (and the ISM) 7 yrs, 10 mos on Twitter | 3,979 | 24.0% |
| 265. |  nature@nature International weekly journal of science. Editorials, News & Views, Comment, Careers and primary research coverage here. For news, please see @NatureNews. London nature.com/nature/current… 7 yrs, 7 mos on Twitter | 1,605,133 | 23.8% |
| 266. |  Dr. Karen James ❄️@kejames Scientist & outdoorswoman tweeting about molecular ecology, genetics, evolution, botany, space, feminism & social justice, but in reverse order if I’m honest. Bar Harbor, ME youtu.be/4-3v_pAJmQk 10 yrs, 9 mos on Twitter | 33,096 | 23.8% |
| 267. |  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. Cambridge, MA seagerexoplanets.mit.edu 8 yrs, 11 mos on Twitter | 7,678 | 23.8% |
| 268. |  Chris North@chrisenorth Lecturer & astronomer @CardiffPHYSX. Co-author of cosmos-book.github.io + other books, semi-regular broadcaster. Comments own. [he/his] Cardiff (normally) blogs.cardiff.ac.uk/chrisnorth 9 yrs, 11 mos on Twitter | 5,434 | 23.8% |
| 269. |  Derek Fox@partialobs Astronomer and faculty member (he/him) at Penn State University. A personal Twitter account. "Where is everybody?" -E. Fermi Earth astro.psu.edu/~dfox/ 10 yrs, 6 mos on Twitter | 2,461 | 23.8% |
| 270. |  Dra. Nicole@jazztronomy CEO of Movement Consulting // Astronomy Ph.D. and STEM equity advocate // She/Her/Hers // #LatinaInSTEM // I have the best ideas Catlanta movebold.ly 4 yrs, 11 mos on Twitter | 2,438 | 23.8% |
| 271. |  Dr. Caryl Gronwall@carylgronwall Astronomer at Penn State University State College, PA astro.psu.edu/~caryl 8 yrs, 6 mos on Twitter | 1,357 | 23.8% |
| 272. |  National Geographic@NatGeo Taking our understanding and awareness of the world further for 130 years Global nationalgeographic.com 10 yrs, 9 mos on Twitter | 23,273,745 | 23.6% |
| 273. |  Jennifer Ouellette@JenLucPiquant Science and culture writer Jennifer Ouellette. Senior writer, Ars Technica. Past: Gizmodo. Ex-evangelical. Married to @seanmcarroll. Los Angeles, CA cocktailpartyphysics.com 9 yrs, 5 mos on Twitter | 38,277 | 23.6% |
| 274. |  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 4 yrs, 6 mos on Twitter | 21,151 | 23.6% |
| 275. |  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 127.0.0.1 stephenserjeant.github.io 10 yrs, 5 mos on Twitter | 2,348 | 23.6% |
| 276. |  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. 8 yrs, 3 mos on Twitter | 1,981 | 23.6% |
| 277. |  Gautham Narayan@gsnarayan Assistant Professor of Astronomy at @illinois_alma. Dark energy, wide-field surveys, supernovae, machine learning, outreach, photography, hiking. (He/him) Champaign, IL gnarayan.github.io 9 yrs, 10 mos on Twitter | 1,245 | 23.6% |
| 278. |  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… 5 yrs, 2 mos on Twitter | 1,041 | 23.6% |
| 279. |  NASA's Kennedy Space Center@NASAKennedy Official Tweets from NASA's Kennedy Space Center Florida, USA nasa.gov/kennedy 10 yrs, 11 mos on Twitter | 1,535,256 | 23.3% |
| 280. |  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) | 47,853 | 23.3% |
| 281. |  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) | 31,731 | 23.3% |
| 282. |  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 10 yrs, 6 mos on Twitter | 5,047 | 23.3% |
| 283. |  Emily Baldwin@AstroEmz Space Science Editor at EJR-Quartz for ESA, based at ESTEC. Tweets about space, running, coffee. Opinions own. Leiden, Netherlands 10 yrs, 6 mos on Twitter | 4,966 | 23.3% |
| 284. |  Brian Greene@bgreene Physicist, Author, Co-founder @WorldSciFest New York, NY briangreene.org 7 yrs, 3 mos on Twitter | 1,012,269 | 23.1% |
| 285. |  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, 10 mos on Twitter | 204,899 | 23.1% |
| 286. |  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… 11 yrs, 6 mos on Twitter | 38,451 | 23.1% |
| 287. |  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 London stuartclark.com 10 yrs, 4 mos on Twitter | 34,968 | 23.1% |
| 288. |  Miriam Kramer@mirikramer I write the @Axios Space newsletter. It's not aliens. It's never aliens. Get in touch: [email protected] Now: NYC. Before: Tennessee. link.axios.com/join/space-sig… 9 yrs, 4 mos on Twitter | 18,981 | 23.1% |
| 289. |  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 10 yrs, 5 mos on Twitter | 3,598 | 23.1% |
| 290. |  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 6 yrs, 6 mos on Twitter | 2,855 | 23.1% |
| 291. |  John Debes@JohnDebes STIS Team Lead @stsci. Works on @diskdetective, @backyardworlds, and @NASAWFIRST CGI. Exoplanets, white dwarf planets, and disks. My opinions are my own. He/Him Geektown, USA stsci.edu/~debes/ 6 yrs, 10 mos on Twitter | 1,187 | 23.1% |
| 292. |  Nate Silver@NateSilver538 Editor-in-Chief, @FiveThirtyEight. Author, The Signal and the Noise (amzn.to/QdyFYV). Sports/politics/food geek. New York fivethirtyeight.com 11 yrs, 0 mos on Twitter | 3,216,014 | 22.9% |
| 293. |  Ariel Waldman@arielwaldman NASA advisor. Antarctic explorer. Author (amzn.to/1MFUEVC). Global director @ScienceHackDay. YouTuber youtube.com/arielwaldman. Art school grad. San Francisco arielwaldman.com 12 yrs, 6 mos on Twitter | 39,147 | 22.9% |
| 294. |  Kim Kowal Arcand@kimberlykowal Visualization & emerging tech/X-ray astronomy; speaker; author; "Light from the Void" 20 Years of @chandraxray due out in October; opinions=my own; she/her RI, USA kimarcand.com 11 yrs, 6 mos on Twitter | 9,069 | 22.9% |
| 295. |  Will Gater@willgater Astronomer, journalist & space geek 🔭https://t.co/qdUaJi892Z | https://t.co/vtY0MvxbF8 | Live show: https://t.co/vQFc3wAD4z UK willgater.com 11 yrs, 3 mos on Twitter | 8,384 | 22.9% |
| 296. |  Kimberly EnnicoSmith@kennicosmith Scientist at NASA. Fueled by tea. Inspired by many. We can solve our planet's problems as part of space exploration. Views my own. Minor planet 154587. Mountain View, CA kandrsmith.org/KES/ 11 yrs, 6 mos on Twitter | 3,803 | 22.9% |
| 297. |  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 11 yrs, 1 mo on Twitter | 12,749,495 | 22.6% |
| 298. |  SOFIAtelescope@SOFIAtelescope SOFIA is the world's largest flying observatory. It is a Boeing 747SP aircraft modified to carry a 2.7-meter telescope and a joint project of @NASA and @DLR_en. California sofia.usra.edu 10 yrs, 10 mos on Twitter | 76,603 | 22.6% |
| 299. |  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 10 yrs, 3 mos on Twitter | 3,773 | 22.6% |
| 300. |  Juan Carlos Munoz@astro_jcm Astronomer at @ESO. Deciphering how galaxies work with huge telescopes in Chile. Outreach/Scicomm. ESO Photo Ambassador. Check my pics: instagram.com/astro_jcm Santiago, Chile sc.eso.org/~jmunoz 2 yrs, 11 mos on Twitter | 2,492 | 22.6% |