Astronomers' Favorite Twitter Feeds

Updated: 2017-Nov-22 19:45 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, occasional freelance science writer, connoisseur of airplane food
Los Angeles, CA, for now
8 yrs, 7 mos on Twitter
209,203 72.7%
2.profile imagePhil Plait

SCIENCE! I love this stuff. My Bad Astronomy blog: syfy.com/badastronomy
Bad Astronomy
10 yrs, 7 mos on Twitter
617,170 71.1%
3.profile imageNASA

Explore the universe and discover our home planet with @NASA. We usually post in EDT (UTC-4).
9 yrs, 11 mos on Twitter
27,156,957 69.8%
4.profile imageEmily Lakdawalla

Senior Editor & Planetary Evangelist, The Planetary Society. Planetary scientist, writer, public speaker. Writing a book on Curiosity mission. Asteroid 274860.
The Design and Engineering of Cur...
Pasadena, CA
9 yrs, 6 mos on Twitter
140,815 67.2%
5.profile imageNeil deGrasse Tyson

StarTalk Young Readers Edition
StarTalk Young Readers Edition (S...
Welcome to the Universe
New York City
8 yrs, 9 mos on Twitter
10,245,537 62.1%
6.profile imagechrislintott

Astronomer, zookeeper and journalist, based at University of Oxford.
The Cosmic Tourist
Exploring the Mysteries of the Un...
Exploring the Mysteries of the Un...
9 yrs, 1 mo on Twitter
27,213 57.6%
7.profile imageBarack Obama

Dad, husband, President, citizen.
Washington, DC
10 yrs, 8 mos on Twitter
97,090,381 56.9%
8.profile imageCuriosity Rover

NASA's latest mission to explore the surface of Mars. Roving the Red Planet since 2012. Team headquartered at NASA's Jet Propulsion Laboratory 🚀 @NASAJPL
Gale Crater, Mars
9 yrs, 4 mos on Twitter
3,857,029 55.3%
9.profile imageSarah Kendrew

Astronomer with the European Space Agency. Based at the Space Telescope Science Institute in Baltimore. Opinions my own. 🇧🇪🇬🇧
10 yrs, 2 mos on Twitter
6,133 55.3%
10.profile imageSarah Hörst

Assistant Prof of Planetary Science @JohnsHopkins, Titan evangelist, pomeranian wrangler. Prone to #sciencedancing. Loves socks. Stridently anti-breakfast.
Baltimore, MD, USA
8 yrs, 7 mos on Twitter
33,605 54.7%
11.profile imageMaria Womack

"Well-versed scrutinizer" of astrophysics & planetary science, USF professor, director physics bridge-to-PhD program, #scipolicy. Contains no pseudoscience
Tampa, Florida
8 yrs, 3 mos on Twitter
3,910 53.7%
12.profile imageLucianne Walkowicz

Chair of Astrobiology @librarycongress studying ethics of Mars exploration, astronomer @AdlerPlanet, multimedia artist. (banner: "Afronauts" by @tobogganeer) Ⓥ
Washington, DC
6 yrs, 9 mos on Twitter
10,634 53.4%
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
6 yrs, 7 mos on Twitter
4,724 53.4%
14.profile imageAstroBetter

Blog and Wiki for professional astronomers.
8 yrs, 7 mos on Twitter
4,306 52.1%
15.profile imageSpaceX

Official Twitter for SpaceX, the future of space travel. SpaceX designs, manufactures and launches the world’s most advanced rockets and spacecraft.
Hawthorne, CA
8 yrs, 7 mos on Twitter
5,312,404 50.8%
16.profile imageAstrotweeps: Christa

Christa Van Laerhoven • @K04PB2B • https://t.co/M3xNXcHCul • A new astronomer/planetary scientist tweeting about space each week.
The Universe
3 yrs, 10 mos on Twitter
7,581 50.8%
17.profile imageBrian Cox

Oldham, UK, Europe, Citizen of the World.
The Earth, with everyone else
8 yrs, 11 mos on Twitter
2,780,136 50.5%
18.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…
10 yrs, 3 mos on Twitter
1,338,170 50.2%
19.profile imageESA

European Space Agency, keeping you posted on European space activities.
8 yrs, 9 mos on Twitter
787,139 50.2%
20.profile image★ amanda bauer ★

Head of Education & Public Outreach for LSST. Music creator. Co-host of #CosmicVertigo space podcast abc.net.au/radionational/…
Tucson, AZ
9 yrs, 8 mos on Twitter
8,967 50.2%
21.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
6 yrs, 10 mos on Twitter
6,330 50.2%
22.profile imageKaren Masters 💫⭐️✨

Extragalactic astrophysicist. Investigating galaxies with @GalaxyZoo @SDSSurveys. Touch a galaxy @TactileUniverse. Mostly tweeting astronomy.
Portsmouth, UK
8 yrs, 8 mos on Twitter
6,039 49.8%
23.profile imageJulianne Dalcanton

Astrophysicist at the University of Washington. Principal Investigator of the Panchromatic Hubble Andromeda Treasury (PHAT).
5 yrs, 10 mos on Twitter
5,186 49.8%
24.profile imageBryan Gaensler

Astronomer, Director of @DunlapInstitute at @UofT. Politics fanatic, sci-fi connoisseur, rugby tragic, displaced Antipodean, bewildered parent. Opinions ∉ @UofT
Extreme Cosmos
Toronto, Canada
8 yrs, 3 mos on Twitter
6,469 49.5%
25.profile imageMike Brown

Astronomer, planet hunter, Pluto killer, bear whisperer, Finger-wrapped dad.
How I Killed Pluto and Why It Had...
Pasadena, CA
8 yrs, 7 mos on Twitter
56,833 49.2%
26.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.
8 yrs, 9 mos on Twitter
2,322,616 48.9%
27.profile imageFraser Cain

Publisher of universetoday.com, co-host of astronomycast.com. Named after Asteroid 158092.
Courtenay, British Columbia
10 yrs, 8 mos on Twitter
37,611 47.9%
28.profile imageSarah Tuttle

Astrophysicist. Bionic Woman. Unrepentant scene-maker. Armed with wrenches & a dream. Professor. Legally & reputationally risky. 100% problematic.
Feminist Dystopian Hellscape
9 yrs, 10 mos on Twitter
9,026 47.9%
29.profile imageMolly Peeples

Astronomer in the Science Policies Group @STScI playing with galaxies and gas, real and fake. #Hubble and #WFIRST pay the bills; opinions are my own. She/her.
Baltimore, MD, z=0
5 yrs, 1 mo on Twitter
4,776 47.9%
30.profile imageElon Musk

Tesla, SpaceX, OpenAI & Neuralink
8 yrs, 5 mos on Twitter
15,200,551 47.3%
31.profile imageSean Carroll

Physicist and author at Caltech. Married to @JenLucPiquant. Always wondering.
Los Angeles
8 yrs, 9 mos on Twitter
128,721 47.3%
32.profile imageCatherine Q.

Astrophysicist, science communicator, over-thinker. One of @HuffPostscience Top 30 Physicists to follow. Autoimmune illness girl. Kiwi in US. Dogs rule.
8 yrs, 8 mos on Twitter
37,691 47.3%
33.profile imageAlex Parker

Planetary astronomer and artist exploring the origin and history of icy worlds at the edge of our solar system.
Boulder, Colorado
8 yrs, 10 mos on Twitter
22,395 46.6%
34.profile imageRenée Hložek

South African cisgender, bisexual female Assistant Prof. of Astrophysics, Rhodes scholar (and lover of loud karaoke), Senior TED Fellow. Feminist scientist.
Toronto, Ontario
8 yrs, 3 mos on Twitter
4,012 46.6%
35.profile imageMeg Urry

Yale physics prof, likes supermassive black holes, teaching, writing, increasing participation in STEM, my family
Yale University
6 yrs, 0 mos on Twitter
4,129 46.3%
36.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
8 yrs, 9 mos on Twitter
3,766 46.3%
37.profile imageAlyssa Goodman

Astronomy Professor at Harvard, CoDirector of Science at Radcliffe Institute. Loves data, visualization, Universe, education, people. Not in that order.
8 yrs, 10 mos on Twitter
3,377 46.3%
38.profile imageBrooke Simmons

Somewhat distracted astrophysicist researching galaxies & black holes; on @galaxyzoo & @the_zooniverse teams. Also planetaryresponsenetwork.org lead.
San Diego, CA
9 yrs, 2 mos on Twitter
4,011 46.0%
39.profile imageMC Stardust ✨

Astrophysicist by day and all around rock-it scientist whenever I get my act together. Tweets are my own opinions. Intersectional or GTFO. 1/2 of @startorialist
Moon/New York City
7 yrs, 7 mos on Twitter
11,323 45.0%
40.profile imageNASA Kepler and K2

Trailing Earth around the Sun
8 yrs, 11 mos on Twitter
617,979 44.7%
41.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)
501,461 44.4%
42.profile imagePamela L. Gay

Communicating astronomy and life in academia 1 sidereal day at a time. All opinions & ideas expressed are strictly my own.
Edwardsville, IL
9 yrs, 9 mos on Twitter
35,259 44.4%
43.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
8 yrs, 10 mos on Twitter
11,510 44.4%
44.profile imageNicole Gugliucci

Astronomer and professor. Social justice advocate. Geek, crossfitter, and dog mom. Tweets my own. Fave/RT != endorsement. She/her.
New Hampshire, USA
9 yrs, 5 mos on Twitter
20,329 44.1%
45.profile imageProf. Abel Méndez

Planetary Astrobiologist and Director of the @PlanetaryHabLab. Studying habitable worlds in the universe.
Searching for Habitable Worlds
Arecibo, Puerto Rico
8 yrs, 0 mos on Twitter
12,875 44.1%
46.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
7 yrs, 11 mos on Twitter
20,982 43.7%
47.profile imageEmily Rice

Astronomer at @csinews, @GC_CUNY, & @AMNH; #BDNYC & #CUNYAstro; @AstronomyOnTap organizer, 1/2 of @startorialist, & @knitted_bd host ⭐️. Not @djcarlysagan 😜
10 yrs, 2 mos on Twitter
3,791 43.1%
48.profile imageCassiniSaturn

Explored Saturn, its moons and the magnificent rings
Saturn, Solar System
9 yrs, 5 mos on Twitter
1,549,021 42.8%
49.profile imageSarcasticRover

Doing a science on the red planet. Not @MarsCuriosity. Tweets relayed by @jfiliatrault.
4th Rock From the Sun
5 yrs, 3 mos on Twitter
724,176 42.8%
50.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
9 yrs, 4 mos on Twitter
273,200 42.8%
51.profile imageBill Nye

Everyone you will ever meet knows something you don't.
New York City
8 yrs, 6 mos on Twitter
5,561,694 42.1%
52.profile imageNASA Webb Telescope

NASA's James Webb Space Telescope will give us an amazing look at the universe! It will launch in 2019. RT, likes, and/or @mentions do not imply endorsement.
Greenbelt, Maryland
8 yrs, 7 mos on Twitter
366,729 42.1%
53.profile imageAlessondra Springmann

asteroids, comets, sounding rockets, @AreciboRadar/🇵🇷 love, cacti, geology, autoimmune disease, puns, decolonization, cat herding, rants, 小惑星レーダー天文学者, she/her
Tohono O'odham land
7 yrs, 7 mos on Twitter
5,972 42.1%
54.profile imageMeg Schwamb

Planetary scientist, astronomer, Gemini North assistant scientist: KBOs, Planet Four(Mars), MBCs(Comet Hunters),LSST SSSC co-chair. Opinions tweeted are my own
Hilo, HI
7 yrs, 6 mos on Twitter
3,691 42.1%
55.profile imageESO

The European Southern Observatory (ESO) is the most productive observatory in the world.
Garching, Germany
9 yrs, 3 mos on Twitter
62,859 41.2%
56.profile imagePeter Edmonds

Work in astronomy publicity after surviving an astrophysics PhD & postdocs. Interested in science & scicomm. Opinions are mine & RTs aren't always endorsements.
5 yrs, 10 mos on Twitter
4,021 41.2%
57.profile imagePlanetary Society

Co-founded by Sagan. Led by Nye. Powered by you. We advocate for space, create our own missions and educate the world.
Pasadena, CA
7 yrs, 2 mos on Twitter
163,394 40.8%
58.profile imageDr. Chanda Prescod-Weinstein 🇧🇧

La Prescod-Weinstein de east Los Angeles, astro|physicist & ethno/#HistSTM, EIC @theoffingmag, #BlackandSTEM 🏳️‍🌈#enby ♀️Jew4Pal, https://t.co/CTwP5K5W9l
9 yrs, 5 mos on Twitter
21,398 40.8%
59.profile imageChris Hadfield

Canadian Astronaut, back on Earth after living aboard ISS as Commander of Expedition 35. For events and media, please write to [email protected]
7 yrs, 2 mos on Twitter
2,307,988 40.5%
60.profile imageMichele Bannister

Planetary astronomer, poet, hunter of new and strange worlds. Connoisseur of fuzzy dots. Asteroid (10463). Research Fellow @AstroQUB.
living the life non-sidereal
8 yrs, 8 mos on Twitter
6,200 40.5%
61.profile imageMatthew "Rid the world of Nazis" Francis

Writer of physics and astronomy. Wearer of jaunty hats. Tryin' to publish a novel. Social Justice Doof Warrior. Avatar by @ScienceComic .
Cleveland, OH
7 yrs, 2 mos on Twitter
15,353 39.9%
62.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
5 yrs, 11 mos on Twitter until last tweet (2016-Sep-30)
423,304 39.5%
63.profile imageDavid Spergel

Astrophysicist at Princeton University and Flatiron Institute
Princeton NJ
3 yrs, 10 mos on Twitter
3,898 39.5%
64.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
3 yrs, 10 mos on Twitter
2,583 39.5%
65.profile imageNASA New Horizons

The New Horizons spacecraft, launched in 2006, flew past the the icy dwarf planet Pluto and its moons in July 2015.
Solar System
3 yrs, 3 mos on Twitter
331,399 39.2%
66.profile imageSarah Ballard

Habitable worlds, kindness, fiction, etc. At ~75 km/s*Mpc! One half of @drssarahcare
Cambridge, MA
3 yrs, 9 mos on Twitter
2,781 39.2%
67.profile imageUniverse Today

Universe Today - universetoday.com, a website about space and astronomy. Tweets are probably coming from @fcain
Courtenay, British Columbia
8 yrs, 8 mos on Twitter
284,996 38.9%
68.profile imageAlexandra Witze

Correspondent for Nature. Reach me: witzescience-at-gmail-dot-com, or for secure correspondence, awitze-at-protonmail-dot-com.
Boulder, CO
8 yrs, 8 mos on Twitter
17,594 38.9%
69.profile imageDr Chiara Mingarelli

Gravitational-wave astrophysicist. Flatiron Research Fellow at @FlatironCCA. Formerly @Caltech, @NASAJPL, and MPIfR. Views my own.
New York, NY
6 yrs, 8 mos on Twitter
5,076 38.9%
70.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
8 yrs, 7 mos on Twitter
685,875 38.6%
71.profile imageNASA's Juno Mission

Exploring Jupiter to improve our understanding of the planet’s origins and the formation of planetary systems. https://t.co/ri4ckPjl5M https://t.co/pWwmhgPcsz
8 yrs, 9 mos on Twitter
683,386 38.6%
72.profile imageESA Science

Science @ the European Space Agency ESA, keeping you posted on European space science activities.
Noordwijk, The Netherlands
7 yrs, 10 mos on Twitter
268,082 38.6%
73.profile imageTanya Harrison

🇨🇦Professional Martian. Director of Research @asunewspace, Web Editor @exploreplanets, current/former sci team @MarsRovers, @MarsCuriosity & Mars Recon Orbiter.
Toronto / Phoenix
8 yrs, 8 mos on Twitter
15,519 38.3%
74.profile imageKevin Schawinski

Asst Prof @ETH_en | black holes | galaxies | #citizenscience | @galaxyzoo | deep learning | speaker | space.ml
Zurich, Switzerland
6 yrs, 9 mos on Twitter
3,439 38.3%
75.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
How Do You Find an Exoplanet? (Pr...
Cambridge, MA
4 yrs, 9 mos on Twitter
2,206 38.3%
76.profile imageChristina R.

Plan Scientist/Astrophysicist, fighter 4 inclusion in STEM, love/hate relationship w/ workouts, wine drinker, making my mom proud since '82; views are my own.
Washington, DC
2 yrs, 2 mos on Twitter
1,973 38.3%
77.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
9 yrs, 3 mos on Twitter
1,869,280 37.9%
78.profile imageNadia Drake

Contributing writer @natgeo. Former ballet dancer. Slightly obsessed with planets (and MOONS), supernovas and spiders. Champagneophile.
San Francisco, CA
7 yrs, 1 mo on Twitter
22,913 37.9%
79.profile imageDr. Phil Metzger

Planetary scientist. Co-founded NASA KSC SwampWorks. Now at UCF Florida Space Institute but still on SwampWorks team. SpaceMining. Space settlement. Science.
Kennedy Space Center & Orlando
4 yrs, 11 mos on Twitter
75,258 37.3%
80.profile imageMarc Kuchner

PI of Citizen Science projects backyardworlds.org, diskdetective.org, Astrophysicist, Songwriter.
Marketing for Scientists
Greenbelt, MD
8 yrs, 11 mos on Twitter
5,795 37.0%
81.profile imageJessie Christiansen

NASA Staff Scientist | #exoplaneteer | #WomenInStem advocate | Science curator at @NASAExoArchive | Usual nerd grab-bag of fandoms
Caltech, Pasadena, CA, USA
3 yrs, 10 mos on Twitter
2,605 37.0%
82.profile imageNew Scientist

The best place to find out what’s new in science – and why it matters. To subscribe go to: https://t.co/nsC9MjQzmh
8 yrs, 9 mos on Twitter
3,269,987 36.7%
83.profile imageJedidah Isler, PhD

Relentless Dreamer / Astrophysicist / Science Lover / Innovator / TED Fellow / Founder & Host @VanguardSTEM / @NatGeo Emerging Explorer
7 yrs, 3 mos on Twitter
9,160 36.7%
84.profile imageJane MacArthur

Planetary scientist @UniOfLeicester studying martian meteorites & comet dust. Writer @PopAstro. Fellow @RoyalAstroSoc #RAS200 #Violinist #SpaceLates
8 yrs, 9 mos on Twitter
6,661 36.7%
85.profile imageRobert Simpson

Googler, astronomer, TED Fellow. Views are my own.
10 yrs, 7 mos on Twitter
32,939 36.0%
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
Searching for the Oldest Stars
New Horizons in Astronomy
Cambridge, MA, USA
4 yrs, 5 mos on Twitter
3,777 36.0%
87.profile imageRisa Wechsler

astrophysicist. cosmologist. maker of universes and various kinds of trouble. professor of physics @ stanford
San Francisco
5 yrs, 2 mos on Twitter
2,853 36.0%
88.profile imageBenneHolwerda

Astronomer at large (mostly harmless). University of Louisville. Opinions & typos obv my own.
Louisville, KY
9 yrs, 4 mos on Twitter
1,204 35.7%
89.profile imagerealscientists: Dr. Jacquelyn Gill, Paleoecologist

Real science from real scientists, writers, communicators, artists & clinicians. This week: Jacquelyn Gill | @JacquelynGill #Dinovember
4 yrs, 9 mos on Twitter
58,911 35.4%
90.profile imageRAS

The Royal Astronomical Society is a learned society representing astronomers and geophysicists in the UK & worldwide. Tweets by @RobertMMassey & @MorganDJHollis
Burlington House, London
7 yrs, 8 mos on Twitter
24,443 35.4%
91.profile imageAlan Duffy

A/Professor in Astrophysics at @Swinburne and Lead Scientist of @RiAus Instagram.com/dr.a.duffy
5 yrs, 4 mos on Twitter
17,091 35.4%
92.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
8 yrs, 9 mos on Twitter
125,229 35.0%
93.profile imageAmber Straughn

Arkansas native & @NASA astrophysicist. Climate change is real. Pilot, yogini, homebrewer, Great Dane mom, @PearlJam fan, Razorback 🏈 fan, #FirstGen Tweets mine
6 yrs, 6 mos on Twitter
11,739 35.0%
94.profile imageRachael Livermore

British Astrophysicist & tea lover. I critique Star Trek science at snarkyastronomer.tumblr.com Videos of my public talks at bit.ly/SciTalks
Melbourne, Victoria
9 yrs, 5 mos on Twitter
3,045 35.0%
95.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
8 yrs, 7 mos on Twitter
2,080 35.0%
96.profile imageJessica Kirkpatrick

Dr. Jessica Ann Kirkpatrick, Astrophysicist → Data Scientist @SlackHQ (formerly @Hired_HQ @Yammer @InstaEDU). #scientist #runner #feminist #writer #catPerson
San Francisco, CA
8 yrs, 4 mos on Twitter
4,336 34.7%
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
8 yrs, 7 mos on Twitter
2,028 34.7%
98.profile imageLucie Green

Royal Society University Research Fellow, Professor of Physics at UCL. Staring at the Sun & beyond. Chief Stargazer @popastro. New book: amzn.to/2nitfmi
7 yrs, 5 mos on Twitter
18,500 34.4%
99.profile imageJennifer L. Hoffman ✨

Astronomer, associate professor, alto, auntie, ailurophile. University of Denver
Stellar Polimetry
Denver, CO
3 yrs, 10 mos on Twitter
2,031 34.4%
100.profile imageProf. Jorge Moreno

Theoretical Astrophysicist | Visiting Scholar at Harvard | AAS CSMA Chair | Assistant Professor at Pomona College | Indigenous-Latinx
Cambridge, MA
3 yrs, 3 mos on Twitter
1,413 34.4%
101.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
9 yrs, 8 mos on Twitter
4,655,288 34.1%
102.profile imageTim Peake

ESA astronaut & test pilot back on Earth after 6 months in space. New book out now (proceeds to Prince's Trust). Order: hyperurl.co/AskAnAstro
Cologne, Germany
5 yrs, 7 mos on Twitter
1,657,189 34.1%
103.profile imageShit Academics Say

A social experiment | @prof_nch
4 yrs, 2 mos on Twitter
265,238 34.1%
104.profile imageSTARtorialist

Where science meets fashion and scientists get FABULOUS! By professional astronomers @Summer_Ash & @emilylurice.
The Universe
3 yrs, 11 mos on Twitter
3,455 34.1%
105.profile imageJJ Eldridge

NZ Astrophysicist studying exploding binary stars. Lecturer, Speaker, Sci-fi addict, feminist, trans/genderfluid, prefers them/they pro-nouns.
The Lives and Death-Throes of Mas...
Auckland, New Zealand
4 yrs, 7 mos on Twitter
2,446 34.1%
106.profile imageJane Rigby

Astronomer researching black holes & galaxies, using telescopes around world & in space, helping build Webb Telescope @NASA. Queer, parent, geek, UU. Views mine
DC Metro
6 yrs, 10 mos on Twitter
2,058 34.1%
107.profile imageBuzz Aldrin

Astronaut, Apollo XI and Gemini 12; Doctorate from MIT in astronautics, Korean War veteran Architect of Cycling Pathways to Mars photo by pari dukovic
Mars & Space Coast Florida
8 yrs, 5 mos on Twitter
1,294,832 33.8%
108.profile imageCarolyn Porco

Planetary scientist. Cassini imaging lead. Visiting Scholar UC Berkeley. Sr Editor Astrobiology journal. I think. I speak. I write. Opinions are my own.
8 yrs, 3 mos on Twitter
57,836 33.8%
109.profile imageDavid Grinspoon

Author EARTH IN HUMAN HANDS, Winner of Carl Sagan Medal, Astrobiologist @planetarysci, Musician in House Band of the Universe, Columnist for @SkyandTelescope
Chasing New Horizons
Earth in Human Hands
Towards Understanding the Climate...
Biosphere One
6 yrs, 2 mos on Twitter
25,158 33.8%
110.profile imagePeter Coles

Theoretical astrophysicist, specialising in cosmology. Also interested in jazz, opera, poetry, crosswords, etc. Citizen of Nowhere.
The Routledge Companion to the Ne...
From Cosmos to Chaos
Cardiff, Wales
8 yrs, 1 mo on Twitter
4,934 33.8%
111.profile imageHaley Gomez

I'm an Astrophysicist, love books, films astronomy, shoes and dresses.
7 yrs, 11 mos on Twitter
2,637 33.8%
112.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
8 yrs, 9 mos on Twitter
454,107 33.4%
113.profile imageCERN

#CERN, the European Organization for Nuclear Research, is the world's largest particle physics lab. #WhatsUpLHC #IWorkAtCERN French: @CERN_FR
9 yrs, 4 mos on Twitter
2,501,628 33.1%
114.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
8 yrs, 0 mos on Twitter
18,100 33.1%
115.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
8 yrs, 6 mos on Twitter
7,516 33.1%
116.profile imageAlberto Conti

Astrophysicist & Innovation Manager google.com/sky/ - hubblesite.org/ibooks Tweets are my own, at least in this multiverse.
9 yrs, 4 mos on Twitter
2,941 33.1%
117.profile imageMeredith Rawls

Stellar astronomer and data management for @LSST. Also: mom, scicommer, violist, Episcopalian. Less nighttime blue light, more 24/7 equity. Keep looking up.
Seattle, WA
7 yrs, 9 mos on Twitter
2,465 33.1%
118.profile imageStuart

Maker of things. Co-author of a book cosmos-book.github.io with @chrisenorth. Part time at @ODILeeds ✨⭐🛰📕📊
10 yrs, 5 mos on Twitter
8,386 32.8%
119.profile imageFranck Marchis

Planetary astronomer and exoplanet chair at the SETI Institute, husband, dad & crossfit athlete balancing life. Tweet about space, our planet & human rights.
San Francisco
7 yrs, 3 mos on Twitter
5,335 32.8%
120.profile imageIan O'Neill

Recovering British solar physicist, @AstroSocietyPac Mercury Magazine editor, @dopamineGS sci advisor, @HowStuffWorks @spacedotcom sci writer. @EVEOnline
Woodland Hills, Los Angeles
9 yrs, 3 mos on Twitter
36,440 32.5%
121.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
2 yrs, 1 mo on Twitter
8,333 32.5%
122.profile imageJason Wright

Associate Professor of Astronomy and Astrophysics at Penn State. Astronomy and meta-astronomy. Opinions are my own.
State College, PA, USA
5 yrs, 2 mos on Twitter
5,507 32.5%
123.profile imageMarek Kukula

Public Astronomer at the Royal Observatory Greenwich, author of The Intimate Universe & co-author of The Scientific Secrets of Dr Who. Opinions = opinions.
The Scientific Secrets of Doctor ...
7 yrs, 3 mos on Twitter
5,036 32.5%
124.profile image.Astronomy

Conference series about what happens when hackers, astronomers and the web all get together.
Cambridge, MA, USA
9 yrs, 6 mos on Twitter
3,927 32.5%
125.profile imageGeert Barentsen

NASA Astronomer in Silicon Valley • Kepler/K2 GO Director • Thinks Bayesian • Wields Python • Likes Burritos • Does not own a cat. 🚀🌯😾 #K2Mission
Mountain View, CA
8 yrs, 6 mos on Twitter
2,387 32.5%
126.profile imageElisabeth Newton

Studying the stars with my feet on the ground. Astro grad interested in #scicomm, education & diversity. Climber, brewer, baker, crafter & @astrobites author.
Cambridge, MA.
6 yrs, 5 mos on Twitter
1,860 32.5%
127.profile imageJason Major

Space. Planets. NASA. Science. Rocketry. Astronomy. Democracy. Nature. Birds. Coffee. Occasionally funny. Sometimes I make pictures.
Warwick, RI
7 yrs, 10 mos on Twitter
23,199 32.2%
128.profile imageProf. Lisa Harvey-Smith

Astrophysicist, Professor, Ultrarunner, TV Presenter #StargazingABC @AstroCourses, Gooner, Vego, Lesopotamian. lisaharveysmith.com
6 yrs, 0 mos on Twitter
6,622 31.8%
129.profile imageNYT Science

Science, Environment, Space and Cosmos. Sync your calendar with the solar system: nyti.ms/2vac9XL
New York, NY
10 yrs, 8 mos on Twitter
1,148,245 31.5%
130.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
9 mos on Twitter
897,099 31.5%
131.profile imageNASA's Dawn Mission

The only spacecraft to orbit one solar system target, Vesta, and then orbit another: Ceres! Thx ion propulsion. Dawn's Communications team
the main asteroid belt
8 yrs, 0 mos on Twitter
206,019 31.5%
132.profile imageAlanStern

Scientist. Space Explorer. Optimist. Pilot. Dad. Not necessarily in that order. Follow my New Horizons Twitter feed @NewHorizons2015.
Chasing New Horizons
Pluto and Charon
Worlds Beyond
Boulder, CO
9 yrs, 3 mos on Twitter
24,440 31.5%
133.profile imageEthan Siegel

The Universe is: Expanding, cooling, and dark. It starts with a bang! #Cosmology Science writer, astrophysicist, author, Forbes & NASA columnist.
Beyond the Galaxy
Portland, OR
6 yrs, 7 mos on Twitter
10,358 31.5%
134.profile imageDan F-M

I write code for good & astrophysics.
6 yrs, 3 mos on Twitter
2,070 31.5%
135.profile imageBlackPhysicists

Arlington, VA and Worldwide
8 yrs, 5 mos on Twitter
16,835 31.2%
136.profile imageDaniel Fischer

All things astronomy and space (and then some) - in tiny bits and pieces but mostly with links to more ... :-)
Königswinter, Germany
9 yrs, 1 mo on Twitter
12,362 31.2%
137.profile imageWoman Astro

Promoting astronomy, encouraging women/girls interested in science. WomanAstro.com, etsy.com/shop/WomanAstro
New Mexico, USA
7 yrs, 11 mos on Twitter
4,673 31.2%
138.profile imageRuth Angus

Researching exoplanets & rebugging in python.
Oxford, UK
6 yrs, 6 mos on Twitter
1,411 31.2%
139.profile imageJosh Peek

Personal account; statements do not reflect the position of any employer!
8 yrs, 9 mos on Twitter
1,079 31.2%
140.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.
8 yrs, 8 mos on Twitter
92,365 30.9%
141.profile imageLIGO

Official Twitter of the LIGO Scientific Collaboration. We detect gravitational waves! YouTube: youtube.com/ligovirgo
Livingston, LA and Hanford, WA
9 yrs, 5 mos on Twitter
65,815 30.9%
142.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
The Unknown Universe
Is There Life On Mars?
Little Moon
8 yrs, 6 mos on Twitter
36,890 30.9%
143.profile imageSophia Nasr

Astroparticle physicist working on dark matter. PhD in cosmology @UCIrvine. On a mission to captivate the world with physics, one particle at a time.
🐶|Los Angeles〉+ 🐹|Irvine〉
7 yrs, 6 mos on Twitter
11,579 30.9%
144.profile imageErin Ryan

Doctor of the flying space rocks, prez of Science on Cake Appreciation Society, collector of orchid plants & stress baker. Not tweeting for any employer.
Charlottesville VA
8 yrs, 2 mos on Twitter
2,333 30.9%
145.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
8 yrs, 7 mos on Twitter
1,452 30.9%
146.profile imageAdam Burgasser

astrophysicist, professor, and preferably in the water.
on a plane, or San Diego
7 yrs, 3 mos on Twitter
1,418 30.9%
147.profile imageNOT ALT WORLD

The #Resistance team against #AltFacts #FauxNews #FauxScience Formerly: Unofficial National Park Service #Science #Climate #Facts Run by non-gov individuals
2 yrs, 6 mos on Twitter
1,243,563 30.5%
148.profile imageCorey S. Powell

Science editor at @aeonmag. Contributing editor for @discovermag and @AmSciMag. Science writer on @BillNyeSaves. Science-curious.
Brooklyn, NY
8 yrs, 8 mos on Twitter
54,412 30.5%
149.profile imageJonathan Amos

BBC Science Correspondent
Cambridge, UK
7 yrs, 10 mos on Twitter
40,385 30.5%
150.profile imageJennifer Ouellette

Jen-Luc Piquant is the faux-French avatar of science writer Jennifer Ouellette. Past Gizmodo science editor. Married to @seanmcarroll.
Los Angeles, CA
7 yrs, 7 mos on Twitter
33,630 30.5%
151.profile imageNancy Atkinson

Science journalist, @universetoday & @Seeker. Author of the book "Incredible Stories From Space"
9 yrs, 5 mos on Twitter
11,540 30.5%
152.profile imageEmily Baldwin

Space Science Editor at EJR-Quartz for ESA, based at ESTEC. Tweets about space, running, coffee. Opinions own.
Leiden, Netherlands
8 yrs, 8 mos on Twitter
4,810 30.5%
153.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
8 yrs, 8 mos on Twitter
3,421 30.5%
154.profile imageHannah Wakeford

2017 Giacconi Fellow @STScI | Currently @exo_cast podcaster, @BSACDIVER & @NASAGoddard Fellow | Previously @UniofExeter PhD | All opinions expressed are my own
6 yrs, 2 mos on Twitter
1,868 30.5%
155.profile imageBecky Smethurst

Astrophysicist researching galaxies & black holes | I present SCIENCE videos for @sixtysymbols | @galaxyzoo | @dotastronomy | #scicomm | Enthusiasm reigns here!
Nottingham, UK
8 yrs, 7 mos on Twitter
1,710 30.5%
156.profile imageScientific American

The authoritative source for the science discoveries and technology innovations that matter.
New York City, NY, USA
9 yrs, 6 mos on Twitter
3,315,313 30.2%
157.profile imageSPACE.com

News coverage and conversation about space science, astronomy and exploration. Part of @Purch
9 yrs, 4 mos on Twitter
722,150 30.2%
158.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
8 yrs, 10 mos on Twitter
4,286 30.2%
159.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)
2,293 30.2%
160.profile imageAnna Watts

Associate Professor of Astrophysics @ University of Amsterdam. Neutron stars. Mom, Yorkshire-Scot in the Flatlands. "Particles in stars blah blah."
3 yrs, 5 mos on Twitter
2,112 30.2%
161.profile imageSam Cristoforetti

Samantha Cristoforetti. European of Italian nationality. Lived on ISS Nov'14-Jun'15. Now adjusting back to being an Earthling on our beautiful spaceship Earth.
6 yrs, 4 mos on Twitter
993,773 29.9%
162.profile imageESA Operations

From Earth orbit to deep space: sharing the excitement of realtime mission operations at ESA #ESOC50 in 2017
Darmstadt, Germany
9 yrs, 0 mos on Twitter
233,776 29.9%
163.profile imageBobak Ferdowsi

Explorer of space. Engineer on NISAR Earth Science & Europa Clipper. Mars Curiosity, Cassini Saturn Opinions mine
Pasadena, CA
8 yrs, 3 mos on Twitter
110,901 29.9%
164.profile imageAlan Boyle

Aerospace and science editor @GeekWire. Longtime blogger @CosmicLog. Author of "The Case for Pluto." Links/RTs ≠ endorsements
9 yrs, 9 mos on Twitter
31,981 29.9%
165.profile imageMika McKinnon

Field geophysicist, disaster researcher, scifi science consultant, science writer, public speaker, irrepressible educator.
West Coast
8 yrs, 5 mos on Twitter
18,727 29.9%
166.profile imageAstro Union

Founded in 1919, the International Astronomical Union (IAU) promotes and safeguards the science of astronomy through international cooperation.
3 yrs, 5 mos on Twitter
4,916 29.9%
167.profile imageDavid Kipping

Exoplanets & Exomoons, Columbia University, Cool Worlds Lab
The Transits of Extrasolar Planet...
Manhattan, NY
8 yrs, 8 mos on Twitter
2,705 29.9%
168.profile imageJason Kalirai

Sikh-Canadian @NASA Astrophysicist & Project Scientist @STScI. Husband & father of 4-MMSJS. Fan of Hubble, JWST, WFIRST, LSST, Cowboys football. Tweets mine.
Highland, MD
6 yrs, 4 mos on Twitter
2,143 29.9%
169.profile imageEmily Levesque

The real exciting sound in science is not, 'Eureka!' It's, 'Wow, that's weird.'
Seattle, WA
7 yrs, 9 mos on Twitter
1,387 29.9%
170.profile imageMichelle Collins

Astrophysics Lecturer @surreyastro, working on Local Group galaxies. Soft spot for Andromeda. Keen runner therunningastronomer.com
Guildford, England
8 yrs, 6 mos on Twitter
1,224 29.9%
171.profile imageScott Kelly

Houston, TX
8 yrs, 3 mos on Twitter
4,913,151 29.6%
172.profile imageWIRED Science

Bringing the radiothermally generated heat. The team: @KatieMPalmer, @JetJocko, @MeganMolteni, and @MrMattSimon.
San Francisco, California
10 yrs, 2 mos on Twitter
2,088,784 29.6%
173.profile imageScience Friday

Brain fun for curious people. Hosted by @iraflatow, from @PRI.
New York, New York
9 yrs, 1 mo on Twitter
774,389 29.6%
174.profile imageRobert McNees

Theoretical physicist and professor. Black holes, quantum gravity, cosmology. Tar Heel. RT = spooky action at a distance. Opinions are all mine.
Chicago, z=0
9 yrs, 5 mos on Twitter
8,721 29.6%
175.profile imageSpaceship Shanahan

Astrophysicist, linguist, & science writer. EMT in training. Cofounded @AAS_WGAD, creator of #disabledandSTEM. #INTJ
Stolen Manahoac Land
6 yrs, 5 mos on Twitter
4,232 29.6%
176.profile imageJohanna

Astronomer, runner, educator, feminist, vegan, baker, #Nats fan
Pasadena, CA
3 yrs, 10 mos on Twitter
1,567 29.6%
177.profile imageSpirit and Oppy

Roaming the Red Planet on six wheels since Jan 2004. The official mission Twitter of the Spirit and Opportunity rovers.
Mars: Gusev Crater & Meridiani
9 yrs, 5 mos on Twitter
429,113 29.3%
178.profile imageJim Al-Khalili

Physicist, author, broadcaster and humanist -- The Universe doesn't have a purpose, free will is an illusion, and quantum physics is beautiful. Now you know me.
University of Surrey
7 yrs, 10 mos on Twitter
109,105 29.3%
179.profile imageMatt Taylor

I work at ESA on the Rosetta mission. 501st Dutch Garrison TK67676 EIB
5 yrs, 2 mos on Twitter
34,188 29.3%
180.profile imageKaren James

Rogue scientist (DNA barcoding, nanopore sequencing, #citizenscience), outdoorswoman, astronaut hopeful, intersectional feminist, all works in progress
Wabanaki land / Bar Harbor, ME
9 yrs, 0 mos on Twitter
26,981 29.3%
181.profile imagegalaxyzoo

It's Galaxy Zoo!
8 yrs, 10 mos on Twitter
13,613 29.3%
182.profile imageHUBBLE

The official feed of ESA/Hubble. The Hubble Space Telescope is the space-based observatory which has revolutionised modern astronomy.
7 yrs, 6 mos on Twitter
508,033 28.9%
183.profile imageJeff Foust

Senior writer, @SpaceNews_Inc. You know the drill: retweets aren't endorsements; opinions here are my own.
Rockville, Maryland, USA
10 yrs, 5 mos on Twitter
28,597 28.9%
184.profile imageGrant Tremblay

Astrophysicist at the Harvard-Smithsonian Center for Astrophysics Views my own.
Cambridge, MA
8 yrs, 8 mos on Twitter
1,141 28.9%
185.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
8 yrs, 7 mos on Twitter
1,070,075 28.6%
186.profile imageESA Gaia

Science with 1 billion objects in three dimensions
8 yrs, 9 mos on Twitter
14,191 28.6%
187.profile imageKatey Alatalo✨

Ph.D. astronomer at STScI, currently housed at Carnegie. Space is amazing! My views are my own.
Pasadena, CA
9 yrs, 5 mos on Twitter
3,707 28.6%
188.profile imagePresident Obama

This is an archive of an Obama Administration account maintained by the National Archives and Records Administration (NARA).
Washington, D.C.
4 yrs, 5 mos on Twitter
15,280,917 28.3%
189.profile imageAmy Mainzer

Jet Propulsion Laboratory
4 yrs, 9 mos on Twitter
25,769 28.3%
190.profile imageDNLee

#NewProf, Mammalogist, Diversity & Access to STEM, Unapologetically Intersectional, Mama Panyabuku, TED Fellow, NatGeo Emerging Explorer
Midwest, US; Tanzania, Africa
7 yrs, 3 mos on Twitter
24,749 28.3%
191.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/
Astronomical Measurement
Auld Reekie
7 yrs, 8 mos on Twitter
1,967 28.3%
192.profile imageJonathan Pritchard

Imperial astrophysicist and bewildered vagabond. SKA enthusiast. (opinions mine, not employer's)
Richmond, London
6 yrs, 10 mos on Twitter
1,350 28.3%
193.profile imageErik Tollerud

Astrophysicist, Python coder, and general lover of nature in all its forms.
Baltimore, MD
8 yrs, 5 mos on Twitter
1,035 28.3%
194.profile imageMeg Rosenburg

planetary science PhD | #scicomm & #histSTM | freelancer, filmmaker, podcaster | megrosenburg.com | And what you do, do it unfeignedly.
Somerville, MA
4 yrs, 11 mos on Twitter
4,310 28.0%
195.profile imageSloan Digital Sky Surveys

Tweeting about mapping the Universe @APOGEEsurvey @eBOSSurvey @MaNGASurvey
Apache Point Observatory.
4 yrs, 9 mos on Twitter
2,840 28.0%
196.profile imageJames Davenport

Astronomy PhD, Postdoctoral Fellow, blogger, casual data analyst, Seattleite. All opinions are my own.
5 yrs, 6 mos on Twitter
1,750 28.0%
197.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, 9 mos on Twitter
33,264 27.7%
198.profile imageWill Gater

Astronomer, journalist & space geek willgater.com | willgaterastrophotography.com
9 yrs, 6 mos on Twitter
7,747 27.7%
199.profile image★ Colin Stuart ★

Astronomy author & speaker. Get a free e-book @ bit.ly/2zjaIee. See www for signed books, keynotes & school talks. Asteroid (15347) Colinstuart
Fabulous Figures and Cool Calcula...
Astonishing Atoms and Matter Mayh...
13 Journeys Through Space and Tim...
8 yrs, 11 mos on Twitter
5,864 27.7%
200.profile imageJackie Faherty

Astrophysicist at @AMNH. Enthusiast for bringing the cosmos to the public @backyardworlds #womeninscience #BDNYC #manhattanhenge calculator. #scicomm
8 yrs, 8 mos on Twitter
3,216 27.7%
201.profile imageRobert Massey

Dad, Acting Executive Director RAS and trustee of @lightyear_fdn. RTs and likes not endorsements, views expressed are my own. Official RAS: @royalastrosoc
Bristol (Southville) & London
8 yrs, 3 mos on Twitter
2,551 27.7%
202.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
6 yrs, 0 mos on Twitter
1,666 27.7%
203.profile imageGuardian Science

Science, health and environment news from the @Guardian. Plus, independent comment and analysis from our network of expert science bloggers
8 yrs, 9 mos on Twitter
1,069,307 27.3%
204.profile imagePHD Comics

Life (or the lack thereof) in Academia. Check out my new book WE HAVE NO IDEA
9 yrs, 4 mos on Twitter
175,147 27.3%
205.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
8 yrs, 7 mos on Twitter
166,805 27.3%
206.profile imageHubbleTelescope

News from the Hubble Space Telescope operated by @stsci
9 yrs, 5 mos on Twitter
120,061 27.3%
207.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.
Exoplanets (Space Science Series)
Exoplanet Atmospheres
Cambridge, MA
7 yrs, 1 mo on Twitter
6,161 27.3%
208.profile imageTrueSciPhi

A window on science and philosophy communities on Twitter and YouTube, by Kelly Truelove. See site for more.
2 yrs, 5 mos on Twitter
3,732 27.3%
209.profile imageJo Dunkley

Professor of Physics and Astrophysics at Princeton
Our Universe
Princeton, NJ
6 yrs, 1 mo on Twitter
1,743 27.3%
210.profile imageJonathan Fortney

Professor at UC Santa Cruz & Director of Other Worlds Laboratory. Modeler of planetary atmospheres & interiors. Father, Softballer, Runner, Surfer?, Minnesotan.
Santa Cruz, CA
5 yrs, 9 mos on Twitter
1,580 27.3%
211.profile imageChris North

Lecturer & astronomer @CardiffPHYSX. Co-author of cosmos-book.github.io + other books, semi-regular broadcaster. Comments own. [he/his]
How to Read the Solar System
The Sky at Night
Cardiff (normally)
8 yrs, 1 mo on Twitter
5,196 27.0%
212.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.
The Origins of Stars and Planets
The Origins of Stars and Planets
Wassenaar, The Netherlands
2 yrs, 3 mos on Twitter
3,792 27.0%
213.profile imageArfon Smith

Head of Data Science Mission Office @stsci. Ex GitHubber. Zooniverse co-founder. Editor-in-chief of The Journal of Open Source Software.
Baltimore, MD
10 yrs, 10 mos on Twitter
3,726 27.0%
214.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
8 yrs, 1 mo on Twitter
200,764 26.7%
215.profile imageAndrew Pontzen

I do cosmology and piano. Employed by UCL, funded by the Royal Society. It's not their fault when I talk nonsense, though.
7 yrs, 3 mos on Twitter
3,021 26.7%
216.profile imageJames Bullock

Professor and Chair, Department of Physics & Astronomy, UC Irvine. Cosmologist, Anteater, and Buckeye.
California, USA
8 yrs, 3 mos on Twitter
2,553 26.7%
217.profile imageStephen Serjeant

Astronomy Prof at the Open University, sometimes roped into OU/BBC stuff. 26.2mi=42.2km.Remainer. Likes often=bookmarks. Views here do not necessarily blah blah
An Introduction to Galaxies and C...
Observational Cosmology
8 yrs, 8 mos on Twitter
2,036 26.7%
218.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.
6 yrs, 6 mos on Twitter
1,853 26.7%
219.profile imageJoss Bland-Hawthorn

All things novel, astrophysical, mathematical, technological.
The Origin of the Galaxy and Loca...
The Galaxy Disk in Cosmological C...
Sydney, Australia
3 yrs, 5 mos on Twitter
1,526 26.7%
220.profile imageInstitute of Physics

Official Twitter account for the Institute of Physics (IOP). facebook.com/instituteofphy…
8 yrs, 6 mos on Twitter
160,602 26.4%
221.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.
7 yrs, 0 mos on Twitter
4,522 26.4%
222.profile imageRadio Astrology

Opening new windows in the prediction spectrum. Astrology at long wavelengths.
In the stars (and the ISM)
6 yrs, 0 mos on Twitter
3,105 26.4%
223.profile imageHillary Clinton

Wife, mom, grandma, women+kids advocate, FLOTUS, Senator, SecState, hair icon, pantsuit aficionado, 2016 presidential candidate.
New York, NY
4 yrs, 7 mos on Twitter
20,015,406 26.0%
224.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, 5 mos on Twitter
48,879 26.0%
225.profile imageKim Kowal Arcand

Mom of 2. Science viz lead for @chandraxray; Latest book now out! "Magnitude: The Scale of the Universe." Opinions=my own 🛰️http://arcandwatzke.comYW
9 yrs, 8 mos on Twitter
7,381 26.0%
226.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
8 yrs, 8 mos on Twitter
3,965 26.0%
227.profile imageAndy Rivkin

Planetary astronomer on #TeamAsteroid; Gedankenband member and guitarist; Persistently Obstreperous.
#USAstronomyGoodwillAmbassador ⊗
9 yrs, 5 mos on Twitter
3,426 26.0%
228.profile imageJen Gupta

Space nerd. @UoPCosmology astronomy outreach. @SeldomSirius podcaster. @TWBBC Live presenter. @WinSciFest. Active Galaxies were my 1st love. Own views [she/her]
Winchester, UK
8 yrs, 3 mos on Twitter
3,158 26.0%
229.profile imagePaul Crowther

@unisheffield Astrophysics Prof mostly researching Monster Stars. Keen interest in UK sci policy esp @STFC_Matters's ups & downs. @PhysicsShef HoD from Jan 2018
Peoples Republic of Sheffield
7 yrs, 11 mos on Twitter
2,711 26.0%
230.profile imageBenjamin Pope

Astronomer, Bayesian, foodie
Manhattan, NY
4 yrs, 10 mos on Twitter
2,182 26.0%
231.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
4 yrs, 6 mos on Twitter
1,919,772 25.7%
232.profile imageNational Science Fdn

Where Discoveries Begin. Social media policy: bit.ly/smpnsf
Alexandria, VA
9 yrs, 2 mos on Twitter
1,082,466 25.7%
233.profile imageNASA Voyager

The official account for NASA’s twin Voyager 1 & 2 spacecraft, the longest operating spacecraft in deep space.
Interstellar space
7 yrs, 3 mos on Twitter
472,767 25.7%
234.profile imageAmy Shira Teitel

SPACEFLIGHT HISTORIAN. Book: bit.ly/astbtcog. Vintage Space: bit.ly/vintagespace. Patreon: patreon.com/amyshirateitel PAO = my PAO.
Los Angeles, CA
7 yrs, 0 mos on Twitter
110,760 25.7%
235.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
3 yrs, 3 mos on Twitter
71,611 25.7%
236.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
8 yrs, 5 mos on Twitter
2,952 25.7%
237.profile imageAAS Executive Office

The mission of the American Astronomical Society (AAS) is to enhance & share humanity's scientific understanding of the universe. Instagram: @AAS_Office
Washington, DC, USA
7 yrs, 0 mos on Twitter
2,324 25.7%
238.profile imageDr. Brian May

Rocket Ship Builder
5 yrs, 1 mo on Twitter
549,678 25.4%
239.profile imageUpulie Divisekera

Molecular Biologist, Nanotechnologist | Space | Astropalaeontology | Co-founder, @realscientists | Dinosaur Evangelist | Science poetry and feelings |
Narrm, Great Southern Land
7 yrs, 2 mos on Twitter
23,460 25.4%
240.profile imageHistory of Astronomy

Multidisciplinary and multicultural history of astronomy #histastro by @VoulaSaridakis, Ph.D. | Curator, Museum of Science and Industry, Chicago @msichicago.
All tweets/views/opinions mine
2 yrs, 8 mos on Twitter
17,816 25.4%
241.profile imageNRAO

The National Radio Astronomy Observatory is a facility of the National Science Foundation. Social media policy: bit.ly/2qNhpB3
Charlottesville, VA
9 yrs, 1 mo on Twitter
12,689 25.4%
242.profile imageLSST Astronomy

The widest, fastest, deepest eye of the new digital age.
Cerro Pachon, Chile
9 yrs, 3 mos on Twitter
3,226 25.4%
243.profile imageEli Bressert

Love big ideas and putting them into action by connecting the impossible. Innovating at @Netflix through all things data. Singularity University mentor.
SciPy and NumPy
Los Gatos, CA
9 yrs, 0 mos on Twitter
2,454 25.4%
244.profile imageEric Mamajek

astronomer, dad, reader of stellar tea leaves, searcher of extrasolar needles in haystacks. My tweets are my own.
Pasadena, CA
6 yrs, 9 mos on Twitter
1,523 25.4%
245.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
3 yrs, 6 mos on Twitter
1,116 25.4%
246.profile imageDerek Fox

Research astronomer and faculty member at Penn State University. This is a personal Twitter account.
8 yrs, 8 mos on Twitter
2,122 25.1%
247.profile imageAdrian Price-Whelan

astrophysics postdoc @ Princeton, galaxy dynamics github.com/adrn facebook.com/operatormusicb…
Princeton, NJ
6 yrs, 5 mos on Twitter
1,290 25.1%
248.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
9 yrs, 4 mos on Twitter
12,958,083 24.8%
249.profile imageNASA Kennedy / KSC

Official Tweets from NASA's Kennedy Space Center
Florida, USA
9 yrs, 1 mo on Twitter
1,376,993 24.8%
250.profile imageMike Massimino

Former @NASA astronaut, Professor at Columbia @CUSEAS, Sr. Advisor for Space Programs @IntrepidMuseum, Author of #Spaceman
New York, NY
8 yrs, 7 mos on Twitter
1,363,001 24.8%
251.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.
6 yrs, 10 mos on Twitter
46,804 24.8%
252.profile imageAriel Waldman

NASA advisor + author of amzn.to/1MFUEVC + founder of Spacehack.org + global director @ScienceHackDay + youtuber youtube.com/arielwaldman
San Francisco
10 yrs, 8 mos on Twitter
30,297 24.8%
253.profile imageSquareKilometreArray

The SKA will be the world's largest radio telescope, located in Africa & Australia. Tweets from the SKA Headquarters @jodrellbank.
Jodrell Bank (UK)
7 yrs, 1 mo on Twitter
11,200 24.8%
254.profile imageEmily Petroff

Astronomer. Reader. Random number generator. I study things that go bang.
The Netherlands
4 yrs, 4 mos on Twitter
3,160 24.8%
255.profile imageSAO/NASA ADS

6 yrs, 11 mos on Twitter
1,832 24.8%
256.profile imageJodrell Bank

Home of the world's third-largest steerable radio telescope & the e-MERLIN National Facility. Part of the University of Manchester.
53.236057, -2.306871
10 yrs, 6 mos on Twitter
244,148 24.4%
257.profile imageSTFC

Science and Technology Facilities Council: Pioneering science for a better future. See @STFC_B2B for business news.
8 yrs, 2 mos on Twitter
15,427 24.4%
258.profile imageKimberly EnnicoSmith

"A cup of tea would restore my normality." - Douglas Adams (HHGTTG)
Mountain View, CA
9 yrs, 9 mos on Twitter
3,714 24.4%
259.profile imageJC Holbrook

Astrophysicist turned Cultural Astronomer via Anthropology and History of Science. Hubble's Diverse Universe createspace.com/410482 BlackSunMovie.com
Kaapstad, ZA
8 yrs, 4 mos on Twitter
2,240 24.4%
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.
Brown Dwarf Variability
Mountain View, California
7 yrs, 3 mos on Twitter
1,403 24.4%
261.profile imageRoyal Observatory

The home of space and time: the historic Meridian Line & GMT. Begin a journey of awe and wonder as we marvel at the Universe and celebrate our place within it.
Greenwich, London
7 yrs, 2 mos on Twitter
29,138 24.1%
262.profile imageHenna

Founder at Universe Simplified (@UnivSimplified), Proponent of Disrupt Education and Maker Spaces, Astronomy Enthusiast, Backpacker
8 yrs, 5 mos on Twitter
7,072 24.1%
263.profile imageJames Tuttle Keane

Joint Center for Planetary Astronomy Postdoc at Caltech. Studying planetary gravity, rotation, and tides. Occasional artist. Owner of Cheesecake the dog.
Pasadena, CA
3 yrs, 8 mos on Twitter
3,230 24.1%
264.profile imageAstropy

This is the official twitter account for the Astropy project.
6 yrs, 4 mos on Twitter
2,109 24.1%
265.profile imageJohn Debes

STIS Team Lead at @stsci. Part of @diskdetective and @NASAWFIRST CGI science team. Exoplanets, white dwarf planets, and disks. My opinions are my own.
Geektown, USA
5 yrs, 0 mos on Twitter
812 24.1%
266.profile imageStephen Colbert

9 yrs, 2 mos on Twitter
16,282,333 23.8%
267.profile imageNate Silver

Editor-in-Chief, @FiveThirtyEight. Author, The Signal and the Noise (amzn.to/QdyFYV). Sports/politics/food geek.
New York
9 yrs, 2 mos on Twitter
2,765,163 23.8%
268.profile imageBBC Science News

News, features and analysis from the BBC Science & Environment news desk.
London, England
10 yrs, 10 mos on Twitter
1,377,152 23.8%
269.profile imageAsteroid Watch

The Center for Near Earth Object Studies @NASAJPL characterizes & monitors orbits of asteroids & comets. Part of NASA's Planetary Defense Coordination Office.
Pasadena, California
8 yrs, 8 mos on Twitter
1,342,737 23.8%
270.profile imageAstronomy Magazine

The best-selling astronomy magazine
Our tiny corner of the cosmos
8 yrs, 8 mos on Twitter
203,873 23.8%
271.profile imageTabetha Boyajian

Assistant professor of Astrophysics at #LSU. disrupter of astrophysics; #BoyajiansStar #TabbysStar; all posts here are my own
Extrasolar Planets and Their Host...
Baton Rouge, LA
8 yrs, 3 mos on Twitter
8,940 23.8%
272.profile imageCaleb Scharf

Director of Astrobiology at Columbia University. Blog at Sci Am (#sciamblogs). Author of The Zoomable Universe, The Copernicus Complex, Gravity's Engines...
The Zoomable Universe
The Copernicus Complex
Gravity's Engines
New York
7 yrs, 0 mos on Twitter
3,927 23.8%
273.profile imageRay Jayawardhana

Astronomer, Explorer, Writer, Speaker. Author of "Strange New Worlds" and "Neutrino Hunters"
Neutrino Hunters
Strange New Worlds
Young Stars Near Earth
6 yrs, 8 mos on Twitter
1,609 23.8%
274.profile imageCourtney Dressing

I'm an astronomer looking for potentially Earth-like planets around nearby stars.
Pasadena, CA
2 yrs, 11 mos on Twitter
1,356 23.8%
275.profile imageCaitlin Casey

Astronomer and Assistant Professor at the University of Texas at Austin.
Austin, TX
3 yrs, 9 mos on Twitter
1,026 23.8%
276.profile imageBBC The Sky at Night

Bringing astronomy and space exploration to your screens since 1957. Join Chris Lintott and Maggie Aderin-Pocock monthly, BBC Four. Stargazing Live is off air.
6 yrs, 1 mo on Twitter
117,558 23.5%
277.profile imageDianna Cowern

Kauai grown, world-curious, #MIT physics, creator of science YouTube videos. Loves pens and rocks. Please respond to tweets with bad puns.
San Diego
5 yrs, 8 mos on Twitter
59,023 23.5%
278.profile imageEllen Stofan

Planetary geologist, STEM advocate, former Chief Scientist of NASA
Exploring Venus as a Terrestrial ...
Washington, DC
5 yrs, 9 mos on Twitter
8,356 23.5%
279.profile imageMichael Merrifield

Professor of astronomy at the University of Nottingham, interested in galaxies and outreach, particularly participating in 60 Symbols videos. All my own views.
6 yrs, 4 mos on Twitter
4,981 23.5%
280.profile imageNola Taylor Redd

Freelance #science writer with a focus in #space and #astronomy.
Atlanta, GA
2 yrs, 5 mos on Twitter
1,619 23.5%
281.profile imageJeyhan

Assistant Professor at RIT interested in infrared galaxies, interacting/merging galaxies, and AGN. Also interested in public outreach and science communication.
Rochester, NY
9 yrs, 10 mos on Twitter
869 23.5%
282.profile imageDara Ó Briain

Infamous Brit-Licker; also been known to hand out free puppies. Currently touring new show "Voice of Reason"; also new science book for kids "Beyond the Sky"
Beneath your wings.
8 yrs, 5 mos on Twitter
2,504,951 23.2%
283.profile imageACLU

The American Civil Liberties Union is a nonprofit, nonpartisan, legal and advocacy organization devoted to protecting the rights of everyone in America.
All 50 states
9 yrs, 9 mos on Twitter
1,377,475 23.2%
284.profile imageSci Curious

#Science education writer @SNStudents, writer at @ScienceNews, podcaster @sci4thepeople. Opinions my own. In my free time, I run long distances.
Washington, DC
8 yrs, 7 mos on Twitter
57,245 23.2%
285.profile imageJon Butterworth

UCL Physics prof, works on #LHC, writes (books, @GuardianScience etc). Citizen of England, UK, Europe & Nowhere, apparently. Personal account
Mainly London & Geneva.
8 yrs, 1 mo on Twitter
14,229 23.2%
286.profile imageTim O'Brien

Professor of Astrophysics, Associate Director @jodrellbank, Science Director @bluedotfestival, President @popastro, likes exploding stars. Red. My own views.
Manchester, UK
8 yrs, 9 mos on Twitter
9,606 23.2%
287.profile imageKeri Bean

Engineer @NASAJPL on @MarsRovers + @NASA_Dawn, R2-D2 builder, @SunriderBase @RebelLegion Rey, @JeffAMcGee's wife, Texas Aggie, Hufflepuff
Pasadena, CA
6 yrs, 6 mos on Twitter
6,602 23.2%
288.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
2 yrs, 9 mos on Twitter
4,235 23.2%
289.profile imageDr Roberto Trotta

Astrophysicist @imperialcollege | science communicator | author of edge-of-the-sky.com | @CLCCDirector | statistical consultant | runner. Opinions my own.
The Edge of the Sky
3 yrs, 9 mos on Twitter
1,913 23.2%
290.profile imageEdward Gomez 🤖

Astronomer, coder, and web technology enthusiast. Believe everyone can be a scientist if they ask more questions.
Cardiff, UK
9 yrs, 5 mos on Twitter
1,877 23.2%
291.profile imageXan and the Art of Motorcycle Maintenance

molecular astrophysicist ★ solarpunk ★ anti-nihilist ★ bibliophile ★ drinker of many teas ★ may all your chlorophyll be replaced by anthocyanins
The Second Circle of Hell
8 yrs, 7 mos on Twitter
1,819 23.2%
292.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~)
The Planet Factory
6 yrs, 0 mos on Twitter
1,747 23.2%
293.profile imageLiz B ☆

Multiwavelength X-ray/Optical Astronomer at @ESO. Bleeding heart liberal & intersectional feminist. All views my own #WomenInSTEM #ActualLivingScientist
Santiago, Chile
5 yrs, 8 mos on Twitter
1,113 23.2%
294.profile imageJohn O'Meara

Father, Astronomer, teacher, science policy nerd, VT craft beer fan. Tweets are my own.
Essex Junction, Vermont
8 yrs, 2 mos on Twitter
962 23.2%
295.profile imageJ.K. Rowling

Author. Apologies, but I cannot guarantee answers to DMs.
8 yrs, 3 mos on Twitter
13,457,161 22.8%
296.profile imageNASA Spitzer

NASA's Spitzer Space Telescope - the infrared Great Observatory. Observes asteroids, comets, extrasolar planets, stars, galaxies and more...
Pasadena, CA.
7 yrs, 7 mos on Twitter
92,194 22.8%
297.profile imageNASA's OSIRIS-REx

The official Twitter feed for NASA's OSIRIS-REx spacecraft. I'm on a seven-year mission to return a pristine sample from the #asteroid Bennu. #ToBennuAndBack
9 yrs, 5 mos on Twitter
50,124 22.8%
298.profile imageMiriam Kramer

Deputy science editor reporting on space for @Mashable. Email: miriam @ mashable dot com. Leak to me. Text or call via Signal: +1 (646) 693-7678
Now: NYC. Before: Tennessee.
7 yrs, 7 mos on Twitter
12,457 22.8%
299.profile imageLisa Grossman

Astronomy reporter at Science News, lifelong astronomy nerd. Ideas my own.
Cambridge, MA
8 yrs, 9 mos on Twitter
5,704 22.8%
300.profile imageAnais Rassat

Science. Interested in tech, innovation & science policy. Knowledge Transfer @CERN #CERNKT. Formerly @EPFL, @CEAParisSaclay, @UCL . Celebrate #Einstein100. TCK.
7 yrs, 9 mos on Twitter
1,910 22.8%