Astronomers' Favorite Twitter Feeds

Updated: 2019-Sep-12 01:01 UTC. Listed feeds: 300. A feed's score is the percentage of Astronomers on Twitter following it, and dark shading indicates the feed belongs to a member of that list. Switch to collage. List only feeds under 1,000 followers. Feedback: @TrueSciPhi.

#Twitter profileTwitter
1.profile imageKatie Mack

(a.k.a. Dr Katherine J Mack) astrophysicist/cosmologist, occasional freelance science writer, connoisseur of cosmic catastrophes
Raleigh, NC
10 yrs, 4 mos on Twitter
326,290 72.7%
2.profile imageNASA

Explore the universe and discover our home planet with @NASA. We usually post in EDT (UTC-4)
11 yrs, 8 mos on Twitter
32,786,217 66.3%
3.profile imageEmily Lakdawalla

Senior Editor & Planetary Evangelist, The Planetary Society. Planetary scientist. Asteroid 274860. Views are my own & not those of employer.
Pasadena, CA
11 yrs, 3 mos on Twitter
162,447 65.4%
4.profile imagePhil Plait

SCIENCE! I love this stuff. My Bad Astronomy blog: syfy.com/badastronomy I use "likes" for bookmarks. No endorsement implied.
12 yrs, 4 mos on Twitter
614,486 64.4%
5.profile imagechrislintott

Astronomer, zookeeper and journalist, based at University of Oxford.
10 yrs, 11 mos on Twitter
30,395 56.8%
6.profile imageAstrotweeps: Beth

Beth Johnson • @planetarypan • https://t.co/xi86iPD73r • A new astronomer/planetary scientist tweeting about space each week.
The Universe
5 yrs, 8 mos on Twitter
10,434 54.5%
7.profile imageSarah Kendrew

Astronomer with the European Space Agency. Based at the Space Telescope Science Institute in Baltimore. Astronomy, running, bikes. Opinions my own. 🇧🇪🇬🇧
11 yrs, 11 mos on Twitter
9,047 53.6%
8.profile imageSarah Tuttle

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.profile imageBarack Obama

Dad, husband, President, citizen.
Washington, DC
12 yrs, 6 mos on Twitter
108,423,806 52.7%
10.profile imageNeil deGrasse Tyson

New York City
10 yrs, 7 mos on Twitter
13,454,775 52.4%
11.profile imageDr./Prof. Sarah Hörst

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
10 yrs, 5 mos on Twitter
54,697 52.2%
12.profile imageCuriosity Rover

Your friendly neighborhood NASA Mars rover. Exploring the Red Planet since 2012. Team headquartered at NASA's Jet Propulsion Laboratory 🚀 @NASAJPL
Gale Crater, Mars
11 yrs, 1 mo on Twitter
4,051,705 52.0%
13.profile imageDavid W Hogg

astronomy, cosmology, stars, exoplanets, inference, engineering, data analysis, emcee, The Cannon, Astrometry.net, The Tractor, #openscience, #otherpeoplesdata
New York City
8 yrs, 5 mos on Twitter
7,172 51.7%
14.profile imageAstroBetter

Blog and Wiki for professional astronomers.
10 yrs, 4 mos on Twitter
5,402 51.7%
15.profile imageastrobites

Digestible summaries of the latest research in astrophysics, written by graduate students. Astrobites is supported by the American Astronomical Society.
All over the world
8 yrs, 8 mos on Twitter
9,553 51.3%
16.profile imageAstronomy Picture Of The Day

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…
12 yrs, 0 mos on Twitter
1,290,836 51.0%
17.profile imageJulianne Dalcanton

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.profile imageBryan Gaensler 📡🧲

Astronomer, Director of @DunlapInstitute at @UofT, @LRP2020 cochair. Sci-fi connoisseur, rugby devotee, displaced Antipodean, perplexed parent. Opinions ∉ @UofT
Toronto, Canada  he/him
10 yrs, 1 mo on Twitter
10,397 49.7%
19.profile imageJonathan McDowell

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
10 yrs, 7 mos on Twitter
29,777 49.4%
20.profile imageESA

European Space Agency, keeping you posted on European space activities.
10 yrs, 6 mos on Twitter
1,000,984 48.5%
21.profile imageProf. Karen Masters 💫⭐️✨

Professor of astrophysics @haverfordedu. Investigating galaxies with @GalaxyZoo @SDSSurveys. Touch a galaxy @TactileUniverse. Mostly tweeting astronomy. British
Ardmore, PA
10 yrs, 6 mos on Twitter
8,657 48.5%
22.profile imageDr. Jessie Christiansen

NASA Research Scientist | #exoplaneteer | #WomenInStem advocate | Science curator at @NASAExoArchive | She/her | Married to @PFHopkins_Astro | Mum of twins
Caltech, Pasadena, CA, USA
5 yrs, 8 mos on Twitter
12,275 48.3%
23.profile imageSpaceX

SpaceX designs, manufactures and launches the world’s most advanced rockets and spacecraft
Hawthorne, CA
10 yrs, 4 mos on Twitter
8,964,975 47.6%
24.profile imageBrian Cox

Touring the world in 2019, mainly talking about cosmology, quantum mechanics, black holes and the value of our civilisation.
The Earth, with everyone else
10 yrs, 9 mos on Twitter
2,935,088 46.9%
25.profile imageMolly Peeples

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
6 yrs, 11 mos on Twitter
7,970 46.9%
26.profile imageSean Carroll

Physicist, @Caltech & @SFIscience. Author, Something Deeply Hidden & more. Host, #MindscapePodcast. Married to @JenLucPiquant. In favor of truth and kindness.
Los Angeles
10 yrs, 6 mos on Twitter
237,997 46.7%
27.profile imageFraser Cain

Publisher of universetoday.com, co-host of astronomycast.com. Named after Asteroid 158092.
Courtenay, British Columbia
12 yrs, 5 mos on Twitter
40,842 46.7%
28.profile imageMaria Womack

Astrophysicist #observingrun #scipolicy #climatecrisis No pseudoscience. Looking up and out!
10 yrs, 1 mo on Twitter
4,530 46.4%
29.profile imageNASA JPL

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.
10 yrs, 7 mos on Twitter
2,873,694 46.0%
30.profile imageKelle Cruz

Astronomy Prof at @Hunter_College, @AMNH, and #BDNYC. Liveable streets. @Spurs. Founder, editor of @AstroBetter & CEO of @ScienceBetter. Coordinator of @Astropy
New York, NY
10 yrs, 7 mos on Twitter
5,315 46.0%
31.profile imageDr./Prof. Renée Hložek

South African cisgender, bisexual woman Assist. Astrophysics Prof., Rhodes scholar (and lover of loud karaoke), Senior TED Fellow. Feminist scientist. She/her
Toronto, Ontario
10 yrs, 1 mo on Twitter
6,188 45.7%
32.profile imageAlex Parker

Planetary astronomer and artist exploring the origin and history of our solar system. Director of @ESPRESSO_SSERVI, keeper of @RoboHiveTweets.
Boulder, Colorado
10 yrs, 8 mos on Twitter
30,827 45.3%
33.profile image★ dr amanda bauer ★

Head of Education & Public Outreach for LSST. Music creator. Co-host of #CosmicVertigo space podcast abc.net.au/radionational/…
Tucson, AZ
11 yrs, 5 mos on Twitter
9,641 45.0%
34.profile imageMike Brown

Astronomer, planet hunter, Pluto killer, bear whisperer, Finger-wrapped dad. Dangerous secularist.
Pasadena, CA
10 yrs, 5 mos on Twitter
63,635 44.1%
35.profile imageESO

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.profile imageProf. Emily Rice, Ph.D.

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)
12 yrs, 0 mos on Twitter
5,881 43.6%
37.profile imageMeg Urry

Yale physics prof, likes supermassive black holes, teaching, writing, increasing participation in STEM, my family
Yale University
7 yrs, 10 mos on Twitter
4,616 43.6%
38.profile imageBrian Schmidt

An overly busy Cosmologist who is Vice Chancellor of the ANU, Wine maker, Dad & Husband. 2011 Nobel Laureate in Physics
Canberra Australia
9 yrs, 9 mos on Twitter
24,742 43.4%
39.profile imageMC Stardust ✨ Inclusion Rider 4 Life

I seem really confident and I talk about space. #lookup #TeamRadio #defectiveheartgirlsolutions 1/2 of @startorialist, opinions=mine (she/her)
Moon/New York City
9 yrs, 5 mos on Twitter
13,183 43.4%
40.profile imageAlyssa A. Goodman

Astronomy Professor at Harvard, CoDirector of Science at Radcliffe Institute. Loves data, visualization, Universe, education, people. Not in that order.
10 yrs, 7 mos on Twitter
3,854 43.0%
41.profile imageMichele Bannister

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
10 yrs, 6 mos on Twitter
8,828 42.7%
42.profile imageBrooke Simmons

Distracted astrophysicist researching galaxies & black holes & other interesting things. Also planetaryresponsenetwork.org lead. (She/her)
United Kingdom
10 yrs, 11 mos on Twitter
8,632 42.5%
43.profile imageDr Pamela L Gay

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
11 yrs, 7 mos on Twitter
40,184 42.3%
44.profile imageDr Rachael Livermore

Astrophysicist | Science Communicator. She/her. Videos of my public talks at bit.ly/SciTalks
London, England
11 yrs, 2 mos on Twitter
7,570 41.8%
45.profile imageDr JJ Eldridge

NZ theoretical astrophysicist studying exploding binary stars. Lecturer, Speaker, Sci-fi addict, feminist, enby trans femme. Pronouns: she/her/they.
Auckland, New Zealand
6 yrs, 4 mos on Twitter
7,288 41.8%
46.profile imageNASA Webb Telescope

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
10 yrs, 5 mos on Twitter
408,042 41.6%
47.profile imageProf. Abel Méndez

Planetary Astrobiologist and Director of the @PlanetaryHabLab. Looking at habitable worlds from the Arecibo Observatory. #exoplanets #astrobiology #habitability
Arecibo, Puerto Rico
9 yrs, 10 mos on Twitter
14,925 41.6%
48.profile imageElon Musk

10 yrs, 3 mos on Twitter
28,192,642 41.1%
49.profile imageDavid Spergel

Astrophysicist at Princeton University and Flatiron Institute
Princeton NJ
5 yrs, 7 mos on Twitter
5,621 41.1%
50.profile imageCassiniSaturn

Our spacecraft is gone, but the science continues. Join us at @NASASolarSystem for the latest.
Saturn, Solar System
11 yrs, 2 mos on Twitter
1,641,684 40.9%
51.profile imageNASA Kepler and K2

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
10 yrs, 9 mos on Twitter
628,504 40.9%
52.profile imageCatherine Q.

Astrophysicist, science communicator, over-thinker. One of @HuffPostscience Top 30 Physicists to follow. @AucklandUni @ScienceUoA space person. Dogs rule.
New Zealand
10 yrs, 6 mos on Twitter
41,449 40.9%
53.profile imageAlessondra Springmann

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
9 yrs, 4 mos on Twitter
8,656 40.9%
54.profile imageDr. Tanya Harrison

🇨🇦🇺🇸🏳️‍🌈Professional Martian 🛰Science+Sci-Fi Consultant 🌍Geoscientist @planetlabs 🔴Fmr mission ops @MarsCuriosity, @MarsRovers & more. Views = my own.
Toronto / Washington DC
10 yrs, 5 mos on Twitter
31,371 40.6%
55.profile imageDr. Chanda Prescod-Weinstein 🙅🏽‍♀️ 🇧🇧🏳️‍🌈

#BlackandSTEM Assist. Prof of #Physics & #Astro & Black Feminist #HistSTM. agender woman/she. 2021: #DisorderedCosmos from @BoldTypeBooks! tweets by/for me only
11 yrs, 3 mos on Twitter
59,171 40.0%
56.profile imagePeter Edmonds

Work in astronomy publicity after surviving an astrophysics PhD & postdocs. Interested in #science & #scicomm. Opinions are mine & RTs aren't endorsements.
7 yrs, 8 mos on Twitter
4,159 40.0%
57.profile imageHubble

The official Twitter account for the NASA Hubble Space Telescope, managed and operated by NASA's Goddard Space Flight Center.
Goddard Space Flight Center
11 yrs, 6 mos on Twitter
6,308,236 39.7%
58.profile imageSarcasticRover

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.profile imageNASA's Juno Mission

Exploring Jupiter to improve our understanding of the planet's origins and the formation of planetary systems. missionjuno.swri.edu nasa.gov/juno
10 yrs, 7 mos on Twitter
753,436 39.5%
60.profile imageESA Science

Science @ the European Space Agency ESA, keeping you posted on European space science activities.
Noordwijk, The Netherlands
9 yrs, 8 mos on Twitter
324,872 39.3%
61.profile imageDavid Charbonneau

Exoplaneteer and Professor of Astronomy at Harvard. Girl Scout leader, hockey coach, and proud father of four daughters and future presidents.
Harvard University
5 yrs, 8 mos on Twitter
3,554 39.3%
62.profile imageBenneHolwerda

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.profile imageRisa Wechsler

astrophysicist. cosmologist. maker of universes, surveyer of the skies. professor of physics @stanford, director of @kipac1. she/they. talks: bit.ly/risamovies
San Francisco
7 yrs, 0 mos on Twitter
10,032 39.0%
64.profile imagePlanetary Society

We just launched a crowdfunded solar sail on a #SpaceX Falcon Heavy. Join CEO @BillNye and the #LightSail2 mission!
Pasadena, CA
8 yrs, 11 mos on Twitter
211,064 38.8%
65.profile imageSophia Gad-Nasr 🏳️‍🌈

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〉
9 yrs, 4 mos on Twitter
34,821 38.8%
66.profile imageNewHorizons2015

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.profile imageSarah Ballard

Habitable worlds, kindness, fiction, etc. At ~75 km/s*Mpc! One half of @drssarahcare
Cambridge, MA
5 yrs, 7 mos on Twitter
3,433 38.6%
68.profile imageProf. Nicole Gugliucci, Doctor of the Sky

Physics professor, education researcher, astronomer, scicommer, advocate for equity in STEM. Geek, crossfitter, dog mom. She/her. 🏳️‍🌈 Tweets mine; RT≠endorse
New Hampshire, USA
11 yrs, 3 mos on Twitter
21,163 38.3%
69.profile imageChris Hadfield

Canadian Astronaut, back on Earth after 3 spaceflights. For events and media, please write to [email protected]
9 yrs, 0 mos on Twitter
2,398,932 38.1%
70.profile imageNASA New Horizons

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
5 yrs, 0 mos on Twitter
394,377 38.1%
71.profile imageGrant Tremblay

Astrophysicist at the Center for Astrophysics | Harvard & Smithsonian. Previously @NASA Einstein Fellow @Yale, Fellow @ESO, & SDAS regular @STScI. Views my own.
Cambridge, MA
10 yrs, 6 mos on Twitter
5,289 37.9%
72.profile imageBill Nye

Science Rules! Podcast Out Now 🧪
Los Angeles, CA
10 yrs, 4 mos on Twitter
5,927,763 37.6%
73.profile imageJedidah Isler, PhD

Astrophysicist / Professor / Relentless Dreamer / Innovator / Founder & Host @VanguardSTEM / Senior @TEDFellow / @NatGeo Explorer [she]
9 yrs, 1 mo on Twitter
16,749 37.6%
74.profile imageNature News & Comment

Science news & opinion from the news team at Nature, the international journal of #science. Get our daily newsletter: go.nature.com/naturebriefing
11 yrs, 0 mos on Twitter
1,959,739 37.0%
75.profile imageESA Rosetta Mission

ESA spacecraft that studied Comet 67P/Churyumov-Gerasimenko & sent @philae2014 to its surface. Mission completed 30 Sep 2016. Follow @esascience for latest news
5 yrs, 7 mos on Twitter until last tweet (2016-Sep-30)
464,492 37.0%
76.profile imageMeg Schwamb

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
9 yrs, 4 mos on Twitter
5,117 37.0%
77.profile imageMika McKinnon

Field geophysicist, disaster researcher, scifi science consultant, science writer, public speaker, irrepressibly curious. #scicomm #womeninSTEM she/her 🇨🇦🇺🇸
West Coast
10 yrs, 3 mos on Twitter
52,962 36.7%
78.profile imageNature Astronomy

A Nature journal dedicated to presenting the very best research across the disciplines of astronomy, astrophysics, cosmology and planetary science.📡
London, England
3 yrs, 11 mos on Twitter
20,629 36.7%
79.profile imageProf Anna Watts

Professor of Astrophysics @ Univ. of Amsterdam. Neutron stars (explosions, dense matter), X-ray astronomy. Mom, Migrant. Particles in stars blah blah.
5 yrs, 3 mos on Twitter
4,982 36.5%
80.profile imageAlberto Conti

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
11 yrs, 2 mos on Twitter
3,735 36.5%
81.profile imageJohn Asher Johnson

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
6 yrs, 7 mos on Twitter
2,369 36.5%
82.profile imageNadia Drake

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.profile imageDr Chiara Mingarelli

Gravitational-wave astrophysicist. Associate Research Scientist at @FlatironCCA. Views my own.
New York, NY
8 yrs, 6 mos on Twitter
6,993 36.3%
84.profile imageShit Academics Say

A social experiment | @prof_nch
5 yrs, 11 mos on Twitter
318,794 35.6%
85.profile imageThe SETI Institute

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
10 yrs, 4 mos on Twitter
685,759 35.3%
86.profile imageAnna Frebel

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
6 yrs, 2 mos on Twitter
13,267 35.1%
87.profile imageBecky Smethurst

Astrophysicist researching how supermassive black holes affect galaxies. I get overly enthusiastic about space on YouTube: youtube.com/drbecky
Oxford, England
10 yrs, 5 mos on Twitter
7,595 35.1%
88.profile imageCaitlin Casey

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
5 yrs, 6 mos on Twitter
2,666 35.1%
89.profile imageLIGO

Official Twitter of the LIGO Scientific Collaboration. We detect gravitational waves! YouTube: youtube.com/ligovirgo
Livingston, LA and Hanford, WA
11 yrs, 3 mos on Twitter
93,078 34.9%
90.profile imageAlexandra Witze

Correspondent for Nature, views my own. Reach me (preferred) witzescience-at-gmaildotcom or (secure) awitze-at-protonmaildotcom. She/her/hers.
Boulder, CO
10 yrs, 6 mos on Twitter
21,405 34.9%
91.profile imageSTARtorialist

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
5 yrs, 9 mos on Twitter
4,655 34.9%
92.profile imageEthan Siegel

The Universe is: Expanding, cooling, and dark. It starts with a bang! #Cosmology Science writer, astrophysicist, author, Forbes & NASA columnist.
Portland, OR
8 yrs, 5 mos on Twitter
16,574 34.6%
93.profile imagePhilae Lander

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
8 yrs, 10 mos on Twitter
387,800 34.2%
94.profile imageNASA Goddard

Tweeting the best in astrophysics, Earth sciences, engineering, robotic exploration, Sun science, and technology for NASA's Goddard Space Flight Center.
Greenbelt, MD USA
10 yrs, 7 mos on Twitter
554,795 33.9%
95.profile imageMatthew R "Who Owns An Asteroid?" Francis

Writer of physics and astronomy. Wearer of jaunty hats. Pledge to my comics collection with @ScienceComic : unbound.com/books/who-owns… . He/him.
9 yrs, 0 mos on Twitter
21,860 33.9%
96.profile imageJane Rigby

Astronomer @nasa studying black holes & galaxies w/ telescopes around world & in space, helping build @NASAWebb. Queer parent scientist UU activist. Views mine.
DC Metro
8 yrs, 8 mos on Twitter
4,973 33.9%
97.profile imageKarin Sandstrom

Assistant professor of astronomy and physics. Lover of coffee, interstellar dust, California, nerdy stuff. Originally from SW Washington.
San Diego, CA
10 yrs, 5 mos on Twitter
2,763 33.9%
98.profile imageESA Gaia

Science with 1 billion objects in three dimensions
10 yrs, 6 mos on Twitter
22,022 33.7%
99.profile imageJackie Faherty

Astrophysicist at @AMNH. Enthusiast for bringing the cosmos to the public @backyardworlds #womeninscience #BDNYC #manhattanhenge calculator. #scicomm
10 yrs, 5 mos on Twitter
5,052 33.7%
100.profile imageSam @ RealScientists

Real science from real scientists, writers, communicators, artists & clinicians. This week: cell biologist and yeast enthusiast Sam Dundon | @serdundon
6 yrs, 7 mos on Twitter
81,797 33.5%
101.profile imageRobert 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
11 yrs, 2 mos on Twitter
15,579 33.5%
102.profile imageEmily Levesque 🤓✨🔭📚

Astronomy prof, author, weird star enthusiast | THE LAST STARGAZERS, my book of astronomy stories & adventures, is coming in 2020! thelaststargazers.com
Seattle, WA
9 yrs, 6 mos on Twitter
3,771 33.5%
103.profile imageGeert Barentsen

NASA Astronomer in Silicon Valley. Leads the wonderful @KeplerGO team at @NASAAmes. Belgian (like waffles). #KeplerMission #K2Mission
Mountain View, CA
10 yrs, 3 mos on Twitter
3,484 33.5%
104.profile imageDan F-M

I write code for good & astrophysics.
8 yrs, 1 mo on Twitter
2,909 33.3%
105.profile imageCERN

#CERN, the European Organization for Nuclear Research, is the world's largest particle physics lab, home of the #LHC. French: @CERN_FR
11 yrs, 2 mos on Twitter
2,567,149 33.0%
106.profile imageEd Yong

Science writer at The Atlantic. Author of I CONTAIN MULTITUDES, a New York Times bestseller on animal-microbe partnerships. edyong.me
Washington, DC
10 yrs, 7 mos on Twitter
165,775 33.0%
107.profile imageProf. Lisa Harvey-Smith

Astrophysicist, Australian Govt. Women in STEM Ambassador, Author #WhenGalaxiesCollide, #UnderTheStars, @ABCtv Stargazing Live presenter, Ultramarathoner. 🌈
7 yrs, 10 mos on Twitter
18,298 33.0%
108.profile imageJosh Peek

Principal Investigator @MAST_News. Data Science and astronomy at @stsci and JHU. Statements do not reflect the position of any employer, obvi.
10 yrs, 6 mos on Twitter
1,342 33.0%
109.profile imageUniverse Today

Universe Today - universetoday.com, a website about space and astronomy. Tweets are probably coming from @fcain
Courtenay, British Columbia
10 yrs, 6 mos on Twitter
291,790 32.8%
110.profile imageDr. Jennifer L. Hoffman ✨

Astronomer, associate professor, alto, auntie, ailurophile. She/her. University of Denver
Denver, CO
5 yrs, 8 mos on Twitter
3,081 32.8%
111.profile imageDr Jess Wade 👩🏻‍🔬

제시카 physics postdoc @imperialcollege. @500womensci/ @wes1919/ @physicsnews/ @wikipedia enthusiast. she / her. 💜 🔬,🦋+💎s. least useful doctor in my family.
London, England
10 yrs, 6 mos on Twitter
33,696 32.6%
112.profile imageRoyal Astronomical Society

We encourage & promote astronomy, solar-system science & geophysics in the UK & worldwide. Tweets by @RobertMMassey, @yelizrifat, @lucywimss & @MorganDJHollis
Burlington House, London
9 yrs, 5 mos on Twitter
30,413 32.6%
113.profile imageThomas Robitaille

Freelance, software developer, lead developer of Glue, co-ordinator for the Astropy project, software Editor for AAS Publishing, open development advocate.
United Kingdom
10 yrs, 5 mos on Twitter
2,446 32.6%
114.profile imagePeter Coles 🇪🇺 🇮🇪 🏳️‍🌈 🇬🇧 🎷 🎶

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
9 yrs, 10 mos on Twitter
6,087 32.3%
115.profile imageDr Michelle Collins

Astrophysicist working on Local Group galaxies. Soft spot for Andromeda. Keen runner. All views my own. RT != endorsement
Guildford, England
10 yrs, 3 mos on Twitter
2,280 32.3%
116.profile imageDr. Emily Petroff

Astronomer.Reader.Random number generator. Veni Fellow studying fast radio bursts 📡💥 at the University of Amsterdam in the API 🏳️‍🌈
The Netherlands
6 yrs, 2 mos on Twitter
9,336 32.1%
117.profile imageLee Billings

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
10 yrs, 4 mos on Twitter
8,580 32.1%
118.profile imageMeredith Rawls

Stellar astronomer and data management for @LSST. Also: mom, scicommer, violist, Episcopalian. Keep looking up. (She/her)
Seattle, WA
9 yrs, 6 mos on Twitter
5,284 32.1%
119.profile imageDavid Kipping

Exoplanets & Exomoons, Cool Worlds Lab, Columbia University
Manhattan, NY
10 yrs, 6 mos on Twitter
4,631 32.1%
120.profile imageNew Scientist

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
10 yrs, 7 mos on Twitter
3,518,111 31.9%
121.profile imageAlan Stern

Scientist. Space Explorer. Author. Speaker, Optimist. Pilot. Dad. Not necessarily in that order. Follow my New Horizons Twitter feed @NewHorizons2015 too!
Niwot, CO
11 yrs, 1 mo on Twitter
38,351 31.9%
122.profile imageDr Jane MacArthur

Planetary scientist studying @UKAntarcticMets, martian meteorites and comet Stardust. Fellow & elected Councillor @RoyalAstroSoc #RAS200 #Violinist #FCA
10 yrs, 7 mos on Twitter
7,369 31.9%
123.profile imageKevin Schawinski

Co-founder/CEO @modulos_ai
Zurich, Switzerland
8 yrs, 7 mos on Twitter
4,547 31.9%
124.profile imageAmber Straughn

Arkansas native & @NASA astrophysicist. Climate change is real. Pilot, yogini, homebrewer, Great Dane mom, @PearlJam fan, Razorback 🏈 fan, #FirstGen Tweets mine
8 yrs, 4 mos on Twitter
13,926 31.6%
125.profile imageAstro Union

Founded in 1919, the International Astronomical Union (IAU) promotes and safeguards the science of astronomy through international cooperation.
5 yrs, 3 mos on Twitter
8,548 31.6%
126.profile imageJason Wright

Professor of Astronomy and Astrophysics at Penn State. Son, husband, father, scientist, teacher, student, human. Mostly posting astronomy. Mostly.
State College, PA, USA
6 yrs, 11 mos on Twitter
6,380 31.6%
127.profile imageJames Davenport

Astronomer, maker of data and science things, Dad. Studying stars, looking for aliens. All opinions are my own.
Seattle, WA
7 yrs, 3 mos on Twitter
2,775 31.6%
128.profile imageJohanna

Astronomer, runner, educator, feminist, vegan, #Nats fan, she/her/hers
Pasadena, CA
5 yrs, 8 mos on Twitter
2,359 31.6%
129.profile imageBuzz Aldrin

Celebrating 50 Yrs of Apollo @ RoadtoApollo50th.com; Gemini 12 & Apollo XI Astronaut & Moonwalker; West Point; USAF Col, Korean War Vet; MIT Founder
10 yrs, 3 mos on Twitter
1,480,054 31.4%
130.profile imageAlan Duffy

A/Professor in Astrophysics at @Swinburne and Lead Scientist of @RiAus Instagram.com/profalanduffy
7 yrs, 2 mos on Twitter
21,367 31.4%
131.profile imageJason Major

Space. Planets. NASA. Science. Rocketry. Astronomy. Democracy. Nature. Birds. Coffee. Occasionally funny. He/him. (It, but only if you’re an alien.)
Warwick, RI
9 yrs, 8 mos on Twitter
32,463 31.2%
132.profile imageDavid Grinspoon

Astrobiologist, Author, Musician. 👽🚀🎸🎵🌎❤️
Biosphere One
7 yrs, 11 mos on Twitter
24,239 31.2%
133.profile imageBrian Keating

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
8 yrs, 11 mos on Twitter
7,815 31.2%
134.profile imageMarc Kuchner

NASA Citizen Science Lead, Astrophysicist, Songwriter.
Greenbelt, MD
10 yrs, 9 mos on Twitter
5,710 31.2%
135.profile imageJames Bullock

Dean @UCIPhysSci, Professor @UCIPhysAstro, #UCIrvine astrophysics & cosmology. Sometimes mumbler on @ScienceChannel #HTUW
Irvine, California, USA
10 yrs, 1 mo on Twitter
4,288 31.2%
136.profile imageElisabeth Newton

Astronomer, educator and assistant professor @Dartmouth College. Also a climber, baker, crafter & @astrobites co-founder. She/her.
Hanover, NH
8 yrs, 3 mos on Twitter
2,393 31.2%
137.profile imageAdam Burgasser

astrophysicist, professor, and preferably in the water.
on a plane, or San Diego
9 yrs, 0 mos on Twitter
1,964 31.2%
138.profile imageDr. Rachael Beaton

migrant astronomer currently at Princeton; 'i have loved the stars too fondly to be fearful of the night' - sarah williams
princeton, nj
9 yrs, 6 mos on Twitter
1,716 31.2%
139.profile imageScientific American

Awesome discoveries. Expert insights. Science that shapes the world.
New York City
11 yrs, 4 mos on Twitter
3,769,999 30.9%
140.profile imageNatalie Batalha

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.profile imageSloan Digital Sky Surveys

Tweeting about mapping the Universe @APOGEEsurvey @eBOSSurvey @MaNGASurvey
Apache Point Observatory.
6 yrs, 7 mos on Twitter
4,718 30.7%
142.profile imageAlexandria Ocasio-Cortez

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
9 yrs, 4 mos on Twitter
5,328,164 30.5%
143.profile imageHUBBLE

The official feed of ESA/Hubble. The Hubble Space Telescope is the space-based observatory which has revolutionised modern astronomy.
9 yrs, 4 mos on Twitter
585,940 30.3%
144.profile imageDr. Phil Metzger

Planetary scientist at @UCF. CoFounder NASA KSC SwampWorks. Space Mining. Space Settlement. Science. Instagram @drphiltill
Orlando, FL
6 yrs, 9 mos on Twitter
73,782 30.0%
145.profile imageCorey S. Powell

Casting pods with @BillNye on Science Rules. Making magazines @discovermag and @AmSciMag. Writing all around. Science-curious.
Brooklyn, NY
10 yrs, 6 mos on Twitter
67,748 30.0%
146.profile imageShannon Stirone 💀

Writer. Art Historian. Find me in @NYTimes @washingtonpost @PopSci @ozm @TheAtlantic @NatGeo @NewRepublic @RollingStone @Wired @Longreads. Opinions are mine.
Bay Area, CA
5 yrs, 1 mo on Twitter
20,872 30.0%
147.profile imageJames Tuttle Keane

postdoc at @Caltech 📚 | geophysics of rocky & icy worlds 🌔 | planetary missions 🚀 | science illustrator 🎨 | trekkie 🖖 | dog dad 🐶 | he/him | 🏳️‍🌈
Pasadena, CA
5 yrs, 5 mos on Twitter
6,351 30.0%
148.profile imageJessica Kirkpatrick

+‒‒‒—‒‒­ Jessica Ann Kirkpatrick, PhD ­‒‒‒‒‒‒+ +‒‒‒‒— Astrophysicist → Data Scientist ‒‒‒‒—+ @kittyplanets #catmom #scientist #techie #writer
San Francisco, CA
10 yrs, 2 mos on Twitter
5,107 30.0%
149.profile imageScience Magazine

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
10 yrs, 4 mos on Twitter
1,383,549 29.8%
150.profile imageProf. Lucie Green

Royal Society Research Fellow, physics Prof at UCL, chair of governors @ucl_academy. Sun & space. Chief Stargazer @popastro. Book: amzn.to/2nitfmi
9 yrs, 3 mos on Twitter
21,051 29.8%
151.profile imageLSST Astronomy

The widest, fastest, deepest eye of the new digital age.
Cerro Pachon, Chile
11 yrs, 1 mo on Twitter
6,486 29.8%
152.profile imageElizabeth Tasker

UK astrophysicist working at the Japan Aerospace Exploration Agency (JAXA). Author of 'The Planet Factory', published by @sigmascience (views are my own~)
7 yrs, 10 mos on Twitter
3,565 29.8%
153.profile imageHannah Wakeford

(she/her) Exoplanet explorer learning about their atmospheres | Giacconi Fellow @STScI/@AURADC, @exo_cast podcaster & @BSACDIVER | Expressed opinions are my own
7 yrs, 11 mos on Twitter
2,788 29.8%
154.profile imageRuth Angus

Curator & Prof. of Astrophysics at the American Museum of Natural History @AMNH & Flatiron Institute @FlatironCCA. I study stars and exoplanets.
New York, NY
8 yrs, 4 mos on Twitter
1,770 29.8%
155.profile imageNYT Science

Science, Medicine, Environment, Space and Cosmos. Sync your calendar with the solar system: nyti.ms/2ECMtej
New York, NY
12 yrs, 5 mos on Twitter
1,167,180 29.6%
156.profile imageCarolyn Porco

Cassini imaging lead. Visiting Scholar UC Berkeley. National Geographic Eliza Scidmore awardee. I think. I speak. I write. Opinions are my own.
10 yrs, 0 mos on Twitter
62,299 29.6%
157.profile imageHaley Gomez

I'm an Astrophysicist, love books, films astronomy, shoes and dresses.
9 yrs, 9 mos on Twitter
3,025 29.6%
158.profile imageJason Kalirai

Astrophysicist and Civil Space Mission Area Executive @JHUAPL. Excited about space exploration and enabling new science with amazing missions. Tweets mine.
Highland, MD
8 yrs, 2 mos on Twitter
2,493 29.6%
159.profile imageRogue NASA

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.profile imageNASA InSight

The InSight mission will study the early evolution of terrestrial planets. Launched May 5, 2018. Landed Nov. 26, 2018.
Elysium Planitia, Mars
7 yrs, 10 mos on Twitter
705,299 29.3%
161.profile imageThe 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
9 yrs, 10 mos on Twitter
20,393 29.3%
162.profile imageTim Peake

British ESA astronaut & test pilot back on Earth after 6 months in space.
Cologne, Germany
7 yrs, 5 mos on Twitter
1,607,396 29.1%
163.profile imageBobak Ferdowsi

Explorer of space. Engineer on NISAR Earth Science & Europa Clipper. Mars Curiosity, Cassini Saturn. Cat dad. Self-opinioned.
Pasadena, CA
10 yrs, 1 mo on Twitter
123,079 29.1%
164.profile imageIan O'Neill

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
11 yrs, 1 mo on Twitter
36,466 29.1%
165.profile imageTrueSciPhi / Kelly Truelove

A window on science, philosophy, and mathematics communities on social media, by Kelly Truelove (physics PhD). Photo info at instagram.com/TrueSciPhi.
Austin, Texas
4 yrs, 3 mos on Twitter
7,124 29.1%
166.profile imageJesse Shanahan

Data scientist @BoozAllen. Astrophysicist. Passions: #AIEthics, video/boardgame #a11y, & 🍟. Cofounded @AAS_WGAD, created #disabledandSTEM. #EhlersDanlos
Washington, DC
8 yrs, 3 mos on Twitter
5,681 29.1%
167.profile imageJonathan Fortney

@ucsc Professor & Director of Other Worlds Laboratory. Modeler of planetary atmospheres & interiors. Father, Softballer, Runner, Human Selfie Stick, Minnesotan
Santa Cruz, CA
7 yrs, 7 mos on Twitter
2,720 29.1%
168.profile imageOverheard On Astroph

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.profile imageKatey Alatalo

Ph.D. astronomer at STScI, currently housed at Carnegie. Space is amazing! My views are my own.
Pasadena, CA
11 yrs, 3 mos on Twitter
3,481 28.9%
170.profile imageNASA's Dawn Mission

My mission has ended, but the science continues. Visit @NASASolarSystem for the latest.
Main Asteroid Belt
9 yrs, 10 mos on Twitter
236,116 28.6%
171.profile imageRobert Simpson

Googler, astronomer, TED Fellow. Views are my own.
12 yrs, 4 mos on Twitter
30,942 28.6%
172.profile imageDr Erin Ryan

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
10 yrs, 0 mos on Twitter
3,119 28.6%
173.profile imageJohn O'Meara

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.profile imageESA Operations

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.profile imageSAO/NASA ADS

8 yrs, 8 mos on Twitter
2,621 28.4%
176.profile imageAdrian Price-Whelan

astrophysics postdoc @ Flatiron Institute; galaxy dynamics, binary stars; likes making and listening to music; github.com/adrn
new york, ny
8 yrs, 3 mos on Twitter
2,356 28.4%
177.profile imageScott Kelly

Ret US Navy Capt & Former NASA Astronaut | #YearInSpace | @KepplerSpeakers | NY Times Bestselling Author |#EnduranceMemoir #InfiniteWonder #MyJourneyToTheStars
10 yrs, 0 mos on Twitter
5,605,474 28.2%
178.profile imagePHD Comics

Life (or the lack thereof) in Academia. Comic strip by Jorge Cham. Instagram.com/phd_comics
11 yrs, 1 mo on Twitter
235,548 28.2%
179.profile imageNRAO

The National Radio Astronomy Observatory is a facility of the National Science Foundation. Social media policy: bit.ly/2qNhpB3
Charlottesville, VA
10 yrs, 11 mos on Twitter
22,865 28.2%
180.profile imageFranck Marchis

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
9 yrs, 0 mos on Twitter
6,408 28.2%
181.profile imageWomanAstro

Promoting astronomy, encouraging women/girls interested in science. WomanAstro.com, etsy.com/shop/WomanAstro
New Mexico, USA
9 yrs, 9 mos on Twitter
4,997 28.2%
182.profile imageEric Mamajek

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.profile imageMatthew Kenworthy

Associate Professor of Astronomy at Leiden Observatory - exoplanet imaging and giant ring transit searches. Keen on giving public talks and outreach.
Leiden, The Netherlands
8 yrs, 10 mos on Twitter
2,090 28.2%
184.profile imageJoss Bland-Hawthorn

All things novel, astrophysical, mathematical, technological.
Sydney, Australia
5 yrs, 3 mos on Twitter
2,044 28.2%
185.profile imageSPACE.com

News coverage and conversation about space science, astronomy and exploration. Part of @futureplc
11 yrs, 1 mo on Twitter
766,371 27.9%
186.profile imageSpirit and Oppy

Roving the Red Planet on six wheels since Jan 2004. The official mission Twitter of the Spirit and Opportunity rovers.
Mars: Gusev Crater & Meridiani
11 yrs, 2 mos on Twitter
487,369 27.9%
187.profile imageBlackPhysicists

Arlington, VA and Worldwide
10 yrs, 3 mos on Twitter
20,618 27.9%
188.profile imagePriyamvada Natarajan

@Yale astrophysicist, works on exotica in the universe: dark matter, black holes; Author: Mapping the Heavens • https://t.co/DuzePWpq2N
New Haven, CT
3 yrs, 6 mos on Twitter
11,338 27.9%
189.profile image.Astronomy

Conference series about what happens when hackers, astronomers and the web all get together.
Toronto, Ontario
11 yrs, 3 mos on Twitter
4,006 27.9%
190.profile imageJC Holbrook

Astrophysicist, Filmmaker, Cultural Astronomer. Hubble's Diverse Universe on Amazon.com BlackSunMovie.com videos.astroanthro.com/Science-Tourist
Kaapstad, ZA
10 yrs, 1 mo on Twitter
3,099 27.9%
191.profile imageNational Science Foundation

Explore #NSFfunded research that is transforming the world. / Social media policy: bit.ly/smpnsf
Alexandria, VA
11 yrs, 0 mos on Twitter
1,155,939 27.7%
192.profile imageScience Friday

Brain fun, for curious people. Hosted by @iraflatow. From @WNYCStudios.
New York, New York
10 yrs, 10 mos on Twitter
764,253 27.7%
193.profile imageHubbleTelescope

News from the Hubble Space Telescope operated by @stsci
11 yrs, 2 mos on Twitter
141,704 27.7%
194.profile imageNASA Voyager

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
9 yrs, 0 mos on Twitter
560,717 27.5%
195.profile imageJo Dunkley

Professor of Physics and Astrophysics at Princeton. Author of Our Universe.
Princeton, NJ
7 yrs, 11 mos on Twitter
3,563 27.5%
196.profile imageDr. Abbie 🍂

Lady scientist (she/her) 👩🏻‍💻 NSF fellow @msu_astro & @michiganastro 🔭 compact objects 💥 #OpenSource 🐍 #BiInSci 💖 mastodon:alstev 🐘tweets≠NSF,MSU,UM
Anishinaabeg/Odawa land
8 yrs, 7 mos on Twitter
2,138 27.5%
197.profile imageErik Tollerud

Astrophysicist, Python coder, and general lover of nature in all its forms. Opinions are my own. He/him/his.
Baltimore, MD
10 yrs, 3 mos on Twitter
1,943 27.5%
198.profile imageLaura Lopez

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.profile imageBruce Macintosh

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.profile imageAstronomy Meetings

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.profile imageSTEMLORD

Zombie Snail Thought Leader | purveyor of finest quality theoretical apocalypses| Scientist | [email protected]| Aussie in Kiwi
Auckland, New Zealand
9 yrs, 0 mos on Twitter
38,687 27.3%
202.profile imageLisa Grossman

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.profile imageStuart

Maker of things. Data wrangler. Co-author of "Cosmos: The Infographic Book of Space". Gone far on a bicycle. ✨📡🛰📕📊📈🗺️🚲🏳️‍🌈 He/him
12 yrs, 3 mos on Twitter
8,096 27.3%
204.profile imageAAS Press Office

Astronomy news from the Press Office of the American Astronomical Society, managed by Dr. Rick Fienberg. Note: Tweeting is not endorsing, only informing.
8 yrs, 9 mos on Twitter
5,367 27.3%
205.profile imageIntl. 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
6 yrs, 3 mos on Twitter
2,804,565 27.0%
206.profile imageBenjamin Pope

Astronomer - he/him
Manhattan, NY
6 yrs, 8 mos on Twitter
2,594 27.0%
207.profile imageInstitute of Physics

The Institute of Physics is a leading scientific membership society working to advance physics for the benefit of all.
10 yrs, 4 mos on Twitter
173,032 26.8%
208.profile imageSamantha Cristoforetti

@ESA astronaut. ISS Exp 42/43 Book in Italian amzn.to/2xNnkc6. In German tiny.cc/3wd3bz. In English in 2020! Proceeds to @Unicef.
8 yrs, 1 mo on Twitter
979,023 26.6%
209.profile imageDianna Cowern

Assume a spherical cowern in a vacuum... kauai-grown, #MIT physics, YouTube videos. Pls respond to tweets w bad puns.
San Diego
7 yrs, 5 mos on Twitter
120,583 26.6%
210.profile imageSky & Telescope

The Essential Guide to Astronomy | We provide the world's leading compendium of information about the science and hobby of astronomy.
Cambridge, Mass.
10 yrs, 5 mos on Twitter
107,859 26.6%
211.profile imageAmerican Astronomical Society (AAS)

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
8 yrs, 9 mos on Twitter
3,866 26.6%
212.profile imageAstropy

This is the official twitter account for the Astropy project.
8 yrs, 1 mo on Twitter
3,155 26.6%
213.profile imagePhil Marshall

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
10 yrs, 4 mos on Twitter
1,513 26.6%
214.profile imageDNLee

#JrProf, Mammalogist, Diversity & Access to STEM, Unapologetically Intersectional, Mama Panyabuku, TED Fellow, NatGeo Emerging Explorer, #DispatchesDNLee
Midwest, US; Tanzania, Africa
9 yrs, 1 mo on Twitter
31,755 26.3%
215.profile image☄Ashley🔭Lindalía☄

🚀🔭📡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.profile imageMark McCaughrean

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.profile imageWIRED Science

Bringing the radiothermally generated heat. The team: @sandraupson, @JetJocko, @rtg0nzalez, @MeganMolteni, @MrMattSimon, @dmoberhaus
San Francisco, California
11 yrs, 11 mos on Twitter
2,025,088 26.1%
218.profile imageNASA_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
6 yrs, 0 mos on Twitter
51,209 26.1%
219.profile imageMatt Taylor

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
6 yrs, 11 mos on Twitter
33,124 26.1%
220.profile imageDr Tabetha Boyajian

Assistant professor of Astrophysics at #LSU. disrupter of astrophysics; #BoyajiansStar #TabbysStar; all posts here are my own
Baton Rouge, LA
10 yrs, 1 mo on Twitter
9,832 26.1%
221.profile imageGiant Magellan

A next-generation “Extremely Large Telescope” seeking to unlock the mysteries of the universe.
Las Campanas, Chile
8 yrs, 3 mos on Twitter
6,535 26.1%
222.profile imageJim Al-Khalili

Professor of theoretical physics, author, broadcaster and humanist. President of @BritSciAssoc. "Affable Egghead" (Sunday Times).
University of Surrey
9 yrs, 7 mos on Twitter
139,596 25.9%
223.profile imageJonathan Amos

BBC Science Correspondent
Cambridge, UK
9 yrs, 7 mos on Twitter
44,266 25.9%
224.profile imageDaniel Fischer

All things astronomy and space (and then some) - in tiny bits and pieces but mostly with links to more ... :-)
Königswinter, Germany
10 yrs, 11 mos on Twitter
13,190 25.9%
225.profile imagePresident Obama

This is an archive of an Obama Administration account maintained by the National Archives and Records Administration (NARA).
Washington, D.C.
3 yrs, 7 mos on Twitter until last tweet (2017-Jan-20)
14,977,369 25.6%
226.profile imageNASA's OSIRIS-REx

NASA's first asteroid sampling spacecraft. I'm on a 7-year mission to return a pristine sample from asteroid Bennu.
Asteroid Bennu
11 yrs, 2 mos on Twitter
82,954 25.6%
227.profile imageJeff Foust

Senior writer, @SpaceNews_Inc. You know the drill: retweets aren't endorsements; opinions here are my own.
Rockville, Maryland, USA
12 yrs, 3 mos on Twitter
38,286 25.6%
228.profile imageThomas Zurbuchen

Associate Administrator, @NASA Science Mission Directorate
Washington, DC
8 yrs, 6 mos on Twitter
25,891 25.6%
229.profile imageSquareKilometreArray

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
8 yrs, 11 mos on Twitter
20,813 25.6%
230.profile imageDr 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
10 yrs, 1 mo on Twitter
4,932 25.6%
231.profile imageAAS CSWA

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
7 yrs, 9 mos on Twitter
2,046 25.6%
232.profile imageLiz B ☆

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.profile imageCarnegie Astronomy

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
4 yrs, 7 mos on Twitter
6,975 25.4%
234.profile imageNOT ALT WORLD

The #Resistance team against #AltFacts #FauxNews #FauxScience Formerly: Unofficial National Park Service #Science #Climate #Facts Run by non-gov individuals
1 yr, 9 mos on Twitter until last tweet (2017-Feb-07)
1,103,624 25.2%
235.profile imageNancy Atkinson

Science journalist & author of new book on Apollo, "Eight Years to the Moon," amazon.com/gp/product/162
11 yrs, 2 mos on Twitter
11,496 25.2%
236.profile imageMoiya McTier

Astrophysicist & Science communicator | she/her 💫 #scicomm | #BiInSci | #BlackAndSTEM 💫 Tryna be the next @BillNye
New York, NY
5 yrs, 2 mos on Twitter
3,302 25.2%
237.profile imageDr. Brian May

Rocket Ship Builder 🚀🚀🚀🚀🚀
6 yrs, 11 mos on Twitter
1,005,978 24.9%
238.profile imageLego Academics

The female academics of the Lego Research Institute take on the challenges of modern academia. CC-BY-NC-SA
Lego Research Institute
5 yrs, 1 mo on Twitter
73,970 24.9%
239.profile imageSabine Hossenfelder

Physicist, blogger, author. Sometimes-songwriter, nighttime-philosopher. Maker of my own misery. she/her
11 yrs, 9 mos on Twitter
29,515 24.9%
240.profile imageRose DF

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
5 yrs, 0 mos on Twitter
18,813 24.9%
241.profile imagegalaxyzoo

It's Galaxy Zoo!
10 yrs, 8 mos on Twitter
13,636 24.9%
242.profile imageAndy Rivkin

Planetary astronomer on #TeamAsteroid; Gedankenband member and guitarist; Persistently Obstreperous.
#USAstronomyGoodwillAmbassador ⊗
11 yrs, 3 mos on Twitter
5,034 24.9%
243.profile imageHillary Clinton

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
6 yrs, 5 mos on Twitter
25,372,759 24.7%
244.profile imageStephen Colbert

the guy on CBS
10 yrs, 11 mos on Twitter
18,607,217 24.7%
245.profile imageChandra Observatory

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
11 yrs, 7 mos on Twitter
179,874 24.7%
246.profile imageSpace Telescope Live

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
3 yrs, 0 mos on Twitter
10,081 24.7%
247.profile imageJonathan Pritchard

Imperial astrophysicist and bewildered vagabond. Reader. SKA enthusiast. @ERC_research funded (opinions mine, not employer's)
Richmond, London
8 yrs, 8 mos on Twitter
1,833 24.7%
248.profile imageGuardian Science

Science, health and environment news from the @Guardian. Plus, independent comment and analysis from our network of expert science bloggers
10 yrs, 6 mos on Twitter
1,065,503 24.5%
249.profile imageThe Royal Society

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.profile imageAmy Mainzer

University of Arizona
6 yrs, 6 mos on Twitter
26,906 24.5%
251.profile imageAndrew Pontzen

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.
9 yrs, 1 mo on Twitter
3,326 24.5%
252.profile imageCaroline Morley

Assistant Prof at UT Austin, modeler of substellar atmospheres
Austin, TX
6 yrs, 11 mos on Twitter
2,058 24.5%
253.profile imageAngela Speck

Tattooed witchy astrolator; stellar mortician, empress of the eclipse, queen of astromineralogy; SJW; currently living in the Midwest.
Columbia, MO
8 yrs, 4 mos on Twitter
2,057 24.5%
254.profile imageDustin Lang

Astronomer at @Perimeter. Farm-raised left-handed vegetarian Canadian socialist. Tweets often astronomical/computational/scatological. he/Dr
Waterloo, Canada
5 yrs, 8 mos on Twitter
1,588 24.5%
255.profile imageXKCD Comic

XKCD comic feed with images, mobile friendly links, and what-if articles. Unofficial, run by @dghubble
5 yrs, 8 mos on Twitter
238,570 24.2%
256.profile imageNASA Spitzer

NASA's Spitzer Space Telescope - the infrared Great Observatory. Observes asteroids, comets, extrasolar planets, stars, galaxies and more...
Pasadena, CA.
9 yrs, 4 mos on Twitter
129,803 24.2%
257.profile imageDan Hooper

Physicist and author at Fermilab and the University of Chicago
Chicago, IL
1 yr, 9 mos on Twitter
6,073 24.2%
258.profile imageArfon Smith

Head of Data Science @stsci. Ex GitHubber. Zooniverse co-founder. Editor-in-chief of the Journal of Open Source Software.
Baltimore, MD
12 yrs, 8 mos on Twitter
4,411 24.2%
259.profile imageRobert Massey

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.profile imageMark Marley

Astronomer working for a well known national space agency. Interests include extrasolar planets, brown dwarfs, giant planets. Opinions are mine alone.
Mountain View, California
9 yrs, 1 mo on Twitter
2,602 24.2%
261.profile imageAndy Lawrence

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
9 yrs, 5 mos on Twitter
2,069 24.2%
262.profile imageLisa Randall

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.profile imageEmma Chapman

Astrophysicist, Royal Society Research Fellow, Imperial College London. Exhausted campaigner on sexual misconduct in HE.
London, England
2 yrs, 11 mos on Twitter
4,327 24.0%
264.profile imageRadio Astrology

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.profile imagenature

International weekly journal of science. Editorials, News & Views, Comment, Careers and primary research coverage here. For news, please see @NatureNews.
7 yrs, 7 mos on Twitter
1,605,133 23.8%
266.profile imageDr. Karen James ❄️

Scientist & outdoorswoman tweeting about molecular ecology, genetics, evolution, botany, space, feminism & social justice, but in reverse order if I’m honest.
Bar Harbor, ME
10 yrs, 9 mos on Twitter
33,096 23.8%
267.profile imageSara Seager

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
8 yrs, 11 mos on Twitter
7,678 23.8%
268.profile imageChris North

Lecturer & astronomer @CardiffPHYSX. Co-author of cosmos-book.github.io + other books, semi-regular broadcaster. Comments own. [he/his]
Cardiff (normally)
9 yrs, 11 mos on Twitter
5,434 23.8%
269.profile imageDerek Fox

Astronomer and faculty member (he/him) at Penn State University. A personal Twitter account. "Where is everybody?" -E. Fermi
10 yrs, 6 mos on Twitter
2,461 23.8%
270.profile imageDra. Nicole

CEO of Movement Consulting // Astronomy Ph.D. and STEM equity advocate // She/Her/Hers // #LatinaInSTEM // I have the best ideas
4 yrs, 11 mos on Twitter
2,438 23.8%
271.profile imageDr. Caryl Gronwall

Astronomer at Penn State University
State College, PA
8 yrs, 6 mos on Twitter
1,357 23.8%
272.profile imageNational Geographic

Taking our understanding and awareness of the world further for 130 years
10 yrs, 9 mos on Twitter
23,273,745 23.6%
273.profile imageJennifer Ouellette

Science and culture writer Jennifer Ouellette. Senior writer, Ars Technica. Past: Gizmodo. Ex-evangelical. Married to @seanmcarroll.
Los Angeles, CA
9 yrs, 5 mos on Twitter
38,277 23.6%
274.profile imageHistory of Astronomy

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.profile imageStephen Serjeant

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
10 yrs, 5 mos on Twitter
2,348 23.6%
276.profile imageAwesome_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.profile imageGautham Narayan

Assistant Professor of Astronomy at @illinois_alma. Dark energy, wide-field surveys, supernovae, machine learning, outreach, photography, hiking. (He/him)
Champaign, IL
9 yrs, 10 mos on Twitter
1,245 23.6%
278.profile imageStephanie Juneau

Associate Astronomer at @NOAONorth. Project Scientist for @NOAODataLab. Coffee & dark chocolate addict. Fan of #blackHoles #art #sciart #rockclimbing
5 yrs, 2 mos on Twitter
1,041 23.6%
279.profile imageNASA's Kennedy Space Center

Official Tweets from NASA's Kennedy Space Center
Florida, USA
10 yrs, 11 mos on Twitter
1,535,256 23.3%
280.profile imageESA Planck

A European Space Agency (ESA) spacecraft to understand the origin and evolution of our Universe
L2: 1,000,000 miles from Earth
9 yrs, 4 mos on Twitter until last tweet (2017-Oct-14)
47,853 23.3%
281.profile imageJohn Grunsfeld

Former lead for Science at NASA (Associate Administrator) Astronaut STS-67,81,103,109,125 Hubble Hugger, Space and Earth explorer
5 yrs, 11 mos on Twitter until last tweet (2018-Jan-11)
31,731 23.3%
282.profile imageJill Tarter

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
10 yrs, 6 mos on Twitter
5,047 23.3%
283.profile imageEmily Baldwin

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.profile imageBrian Greene

Physicist, Author, Co-founder @WorldSciFest
New York, NY
7 yrs, 3 mos on Twitter
1,012,269 23.1%
285.profile imageUK Space Agency

Official Twitter channel of the UK Space Agency. We're at the heart of UK efforts to explore and benefit from space.
Swindon, England
9 yrs, 10 mos on Twitter
204,899 23.1%
286.profile imageAlan Boyle

Aerospace and science editor @GeekWire. Longtime blogger @CosmicLog. Author of "The Case for Pluto." Links/RTs ≠ endorsements
11 yrs, 6 mos on Twitter
38,451 23.1%
287.profile imageStuart Clark

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
10 yrs, 4 mos on Twitter
34,968 23.1%
288.profile imageMiriam Kramer

I write the @Axios Space newsletter. It's not aliens. It's never aliens. Get in touch: [email protected]
Now: NYC. Before: Tennessee.
9 yrs, 4 mos on Twitter
18,981 23.1%
289.profile imageDr Megan Argo

By day: just another transient astronomer. By night: samba drumming, rock climbing, public speaker, teacher and science advocate. facebook.com/DrMeganArgo
Planet Earth
10 yrs, 5 mos on Twitter
3,598 23.1%
290.profile imageAstronomy On Tap HQ

🌟Professional astronomers reveal how they explore the Universe, at bars & pubs around the world!🌟HQ account follows satellite locations, organizers, & venues.
6 yrs, 6 mos on Twitter
2,855 23.1%
291.profile imageJohn Debes

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
6 yrs, 10 mos on Twitter
1,187 23.1%
292.profile imageNate Silver

Editor-in-Chief, @FiveThirtyEight. Author, The Signal and the Noise (amzn.to/QdyFYV). Sports/politics/food geek.
New York
11 yrs, 0 mos on Twitter
3,216,014 22.9%
293.profile imageAriel Waldman

NASA advisor. Antarctic explorer. Author (amzn.to/1MFUEVC). Global director @ScienceHackDay. YouTuber youtube.com/arielwaldman. Art school grad.
San Francisco
12 yrs, 6 mos on Twitter
39,147 22.9%
294.profile imageKim Kowal Arcand

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
11 yrs, 6 mos on Twitter
9,069 22.9%
295.profile imageWill Gater

Astronomer, journalist & space geek 🔭https://t.co/qdUaJi892Z | https://t.co/vtY0MvxbF8 | Live show: https://t.co/vQFc3wAD4z
11 yrs, 3 mos on Twitter
8,384 22.9%
296.profile imageKimberly EnnicoSmith

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
11 yrs, 6 mos on Twitter
3,803 22.9%
297.profile imageStephen Fry

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.profile imageSOFIAtelescope

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.
10 yrs, 10 mos on Twitter
76,603 22.6%
299.profile imageKristin Block

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.profile imageJuan Carlos Munoz

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
2 yrs, 11 mos on Twitter
2,492 22.6%