Astronomers' Favorite Twitter Feeds

Updated: 2017-Sep-20 18:35 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
Melbourne, Australia, or not
8 yrs, 5 mos on Twitter
179,626 73.5%
2.profile imagePhil Plait

SCIENCE! I love this stuff. My blog RSS feed: blastr.com/tags/bad-astro…
Bad Astronomy
10 yrs, 5 mos on Twitter
605,006 70.5%
3.profile imageNASA

Explore the universe and discover our home planet with @NASA. We usually post in EDT (UTC-4).
9 yrs, 9 mos on Twitter
26,220,459 69.2%
4.profile imageEmily Lakdawalla

Senior Editor & Planetary Evangelist, The Planetary Society. Planetary scientist, writer, public speaker. Writing a book on Curiosity mission. Asteroid 274860.
Pasadena, CA
9 yrs, 4 mos on Twitter
139,714 68.5%
5.profile imageNeil deGrasse Tyson

StarTalk Young Readers Edition
Welcome to the Universe
Astrophysics for People in a Hurr...
New York City
8 yrs, 7 mos on Twitter
9,147,574 61.9%
6.profile imageBarack Obama

Dad, husband, President, citizen.
Washington, DC
10 yrs, 6 mos on Twitter
94,990,454 57.0%
7.profile imagechrislintott

Astronomer, zookeeper and journalist, based at University of Oxford.
The Cosmic Tourist
Exploring the Mysteries of the Un...
8 yrs, 11 mos on Twitter
26,894 57.0%
8.profile imageCuriosity Rover

NASA's latest mission to explore the surface of Mars. Roving the Red Planet since Aug. 5, 2012 PDT (Aug 6 UTC).
Gale Crater, Mars
9 yrs, 2 mos on Twitter
3,836,146 56.0%
9.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, 5 mos on Twitter
31,591 55.6%
10.profile imageSarah Kendrew

Astronomer with the European Space Agency. Based at the Space Telescope Science Institute in Baltimore. Opinions my own.
Baltimore/Cape Town/Brussels
10 yrs, 0 mos on Twitter
5,993 55.6%
11.profile imageMaria Womack

Astrophysicist & planetary scientist @USouthFlorida physics professor. Comets, exocomets, exoplanets, stars, #astropolicy #scipolicy Contains no pseudoscience.
Tampa, Florida
8 yrs, 1 mo on Twitter
3,843 54.0%
12.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, 5 mos on Twitter
4,541 53.6%
13.profile imageLucianne Walkowicz

Astrophysicist @AdlerPlanet, Chair of Astrobiology @librarycongress, multimedia artist. (banner: "Afronauts" by @tobogganeer) Ⓥ
Chicago, IL, USA, Earth
6 yrs, 7 mos on Twitter
10,434 52.3%
14.profile imageAstroBetter

Blog and Wiki for professional astronomers.
8 yrs, 5 mos on Twitter
4,194 52.0%
15.profile imageBrian Cox

Oldham, UK, Europe, Citizen of the World.
The Earth, with everyone else
8 yrs, 9 mos on Twitter
2,736,135 51.7%
16.profile imageKaren Masters 💫⭐️✨

Extragalactic astrophysicist. Investigating galaxies with @GalaxyZoo @SDSSurveys. Touch a galaxy @TactileUniverse. Mostly tweeting astronomy.
Portsmouth, UK
8 yrs, 6 mos on Twitter
5,875 50.7%
17.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, 8 mos on Twitter
6,096 50.3%
18.profile imageJulianne Dalcanton

Astrophysicist at the University of Washington. Principal Investigator of the Panchromatic Hubble Andromeda Treasury (PHAT).
5 yrs, 8 mos on Twitter
4,960 50.3%
19.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, 4 mos on Twitter
4,679,429 50.0%
20.profile imageAstro Pic 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, 1 mo on Twitter
1,318,732 50.0%
21.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, 6 mos on Twitter
8,926 50.0%
22.profile imageESA

European Space Agency, keeping you posted on European space activities.
8 yrs, 6 mos on Twitter
769,700 49.7%
23.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, 5 mos on Twitter
55,526 49.3%
24.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, 6 mos on Twitter
37,219 48.7%
25.profile imageAstrotweeps: Emily

Emily Sandford • https://t.co/UglgmzgkB4 • A new astronomer/planetary scientist tweeting about space each week.
The Universe
3 yrs, 8 mos on Twitter
7,395 48.7%
26.profile imageBryan Gaensler

Astronomer, politics fanatic, sci-fi connoisseur, rugby tragic, displaced Antipodean, bewildered parent. Director of @DunlapInstitute at @UofT. Opinions ∉ @UofT
Extreme Cosmos
Toronto, Canada
8 yrs, 1 mo on Twitter
6,025 48.7%
27.profile imageFraser Cain

Publisher of universetoday.com, co-host of astronomycast.com. Named after Asteroid 158092.
Courtenay, British Columbia
10 yrs, 6 mos on Twitter
37,407 48.3%
28.profile imageSarah Tuttle

Astrophysicist. Mom. Lunatic. Bionic Woman. Armed with wrenches & a dream. Professor. Legally & reputationally risky. 100% problematic.
Feminist Dystopian Hellscape
9 yrs, 8 mos on Twitter
8,657 48.0%
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.
8 yrs, 7 mos on Twitter
2,208,927 47.7%
30.profile imageSean Carroll

Physicist and author at Caltech. Married to @JenLucPiquant. Always wondering.
Los Angeles
8 yrs, 6 mos on Twitter
120,237 47.7%
31.profile imageElon Musk

Tesla, SpaceX, OpenAI & Neuralink
8 yrs, 3 mos on Twitter
12,843,653 47.4%
32.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
4 yrs, 11 mos on Twitter
4,631 47.4%
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, 8 mos on Twitter
19,084 47.0%
34.profile imageMeg Urry

Yale physics prof, likes supermassive black holes, teaching, writing, increasing participation in STEM, my family
Yale University
5 yrs, 10 mos on Twitter
4,017 46.7%
35.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, 8 mos on Twitter
3,329 46.7%
36.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, 1 mo on Twitter
3,902 46.4%
37.profile imageBrooke Simmons

Somewhat distracted astrophysicist researching galaxies & black holes; on @galaxyzoo & @the_zooniverse teams. Also planetaryresponsenetwork.org lead.
San Diego, CA
9 yrs, 0 mos on Twitter
3,853 46.0%
38.profile imageKelle Cruz

Astronomer & Prof at @Hunter_College, @AMNH, and #BDNYC. Liveable streets advocate. @Spurs fan. Founder, editor of @AstroBetter & CEO of @ScienceBetter
New York, NY
8 yrs, 7 mos on Twitter
3,615 45.4%
39.profile imageNASA Kepler and K2

Trailing Earth around the Sun
8 yrs, 9 mos on Twitter
616,209 45.0%
40.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, 5 mos on Twitter
11,000 45.0%
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
6 yrs, 7 mos on Twitter
505,234 44.7%
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, 7 mos on Twitter
34,956 44.4%
43.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, 3 mos on Twitter
14,947 44.4%
44.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, 7 mos on Twitter
11,149 44.4%
45.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, 9 mos on Twitter
20,688 43.7%
46.profile imageProf. Abel Méndez

Planetary Astrobiologist and Director of the @PlanetaryHabLab. Studying habitable worlds in the universe.
Searching for Habitable Worlds
Arecibo, Puerto Rico
7 yrs, 10 mos on Twitter
12,489 43.7%
47.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, 2 mos on Twitter
272,408 43.4%
48.profile imageEmily Rice

Astronomer at @csinews, @GC_CUNY, & @AMNH; #BDNYC & #CUNYAstro; @AstronomyOnTap organizer, 1/2 of @startorialist, & @knitted_bd host ⭐️. Not @djcarlysagan 😜
10 yrs, 0 mos on Twitter
3,642 43.4%
49.profile imageSarcasticRover

Doing a science on the red planet. Not @MarsCuriosity. Tweets relayed by @jfiliatrault.
4th Rock From the Sun
5 yrs, 1 mo on Twitter
567,280 42.7%
50.profile imageCassiniSaturn

Explored Saturn, its moons and the magnificent rings
Saturn, Solar System
9 yrs, 3 mos on Twitter
1,494,600 42.4%
51.profile imageAlessondraSpringmann

asteroids, comets, sounding rockets, radar, saguaro, geology, autoimmune disease, puns, decolonization, cat herding, rants, 小惑星レーダー天文学者, she/her/hers
Tohono O'odham land
7 yrs, 5 mos on Twitter
5,521 41.7%
52.profile imageBill Nye

Everyone you will ever meet knows something you don't.
New York City
8 yrs, 4 mos on Twitter
5,314,864 41.4%
53.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, 0 mos on Twitter
2,246,165 41.4%
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, 4 mos on Twitter
3,409 41.4%
55.profile imageDr. Chanda 🇧🇧

Dr. Chanda Prescod-Weinstein, physicist of the early universe, #BlackandSTEM 🏳️‍🌈#enby ♀️Jew4Pal, EIC @TheOffingMag #histSTM https://t.co/CTwP5JOkKL
Seattle, WA/Cambridge, MA
9 yrs, 3 mos on Twitter
19,470 41.1%
56.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, 6 mos on Twitter
5,706 41.1%
57.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, 8 mos on Twitter
4,017 41.1%
58.profile imagePlanetary Society

Co-founded by Sagan. Led by Nye. Forward with you. We advocate for space, create our own missions and educate the world.
Pasadena, CA
6 yrs, 11 mos on Twitter
158,849 40.7%
59.profile imageNASA Webb Telescope

NASA's James Webb Space Telescope will give us an amazing look at the universe! It will launch in 2018. RT, likes, and/or @mentions do not imply endorsement.
Greenbelt, Maryland
8 yrs, 5 mos on Twitter
355,375 40.4%
60.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
6 yrs, 10 mos on Twitter
427,364 40.1%
61.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, 1 mo on Twitter
329,490 39.7%
62.profile imageESO

The European Southern Observatory (ESO) is the most productive observatory in the world.
Garching, Germany
9 yrs, 1 mo on Twitter
60,452 39.7%
63.profile imageMatthew R 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, 0 mos on Twitter
15,055 39.7%
64.profile imageDavid Spergel

Astrophysicist at Princeton University and Flatiron Institute
Princeton NJ
3 yrs, 8 mos on Twitter
3,833 39.7%
65.profile imageAlexandra Witze

Correspondent for Nature. Tip securely: witzescience at gmail (PGP: C789 E4A2 E54A CC71 789E FD68 CE6F 1ED6 007D 3682) or awitze at protonmail.
Boulder, CO
8 yrs, 6 mos on Twitter
17,349 39.4%
66.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, 8 mos on Twitter
2,512 39.4%
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, 6 mos on Twitter
275,317 38.7%
68.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, 4 mos on Twitter
683,784 38.4%
69.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, 7 mos on Twitter
679,935 38.4%
70.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, 7 mos on Twitter
2,191 38.4%
71.profile imageESA Science

Science @ the European Space Agency ESA, keeping you posted on European space science activities.
Noordwijk, The Netherlands
7 yrs, 8 mos on Twitter
263,015 38.1%
72.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, 9 mos on Twitter
74,959 38.1%
73.profile imageKevin Schawinski

Asst Prof @ETH_en | black holes | galaxies | #citizenscience | @galaxyzoo | deep learning | speaker | space.ml
Zurich, Switzerland
6 yrs, 7 mos on Twitter
3,256 38.1%
74.profile imageSarah Ballard

Habitable worlds, kindness, fiction, etc. At ~75 km/s*Mpc! One half of @drssarahcare
Cambridge, MA
3 yrs, 7 mos on Twitter
2,627 38.1%
75.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/dailynews
9 yrs, 1 mo on Twitter
1,831,983 37.7%
76.profile imageNadia Drake

Contributing writer @natgeo. Hotel soap connoisseur. Former ballet dancer. Slightly obsessed with planets (and MOONS), supernovas and spiders. Champagneophile.
San Francisco, CA
6 yrs, 11 mos on Twitter
19,926 37.7%
77.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, 6 mos on Twitter
14,904 37.4%
78.profile imageMarc Kuchner

PI of Citizen Science projects backyardworlds.org, diskdetective.org, Astrophysicist, Songwriter.
Marketing for Scientists
Greenbelt, MD
8 yrs, 9 mos on Twitter
5,814 37.4%
79.profile imageChristina R.

Planetary Scientist/Astrophysicist, fighter for inclusion in STEM, runner, wine drinker, making my mom proud since '82; views are my own.
2 yrs, 0 mos on Twitter
1,905 37.4%
80.profile imageDr Chiara Mingarelli

Marie Curie Fellow in #GravitationalWave #Astrophysics at MPIfR via @Caltech, @NASAJPL, @unibirmingham. From Ottawa, Canada
Bonn, Germany
6 yrs, 6 mos on Twitter
4,927 37.1%
81.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, 7 mos on Twitter
3,124,585 36.8%
82.profile imageJane MacArthur

Planetary scientist @UniOfLeicester studying martian meteorites & comet dust. Writer for @PopAstro. Fellow @RoyalAstroSoc #RAS200 #INTERACT2017 #STEMAmbassador
8 yrs, 7 mos on Twitter
6,399 36.8%
83.profile imagerealscientists

Real science from real scientists, writers, communicators, artists & clinicians. This week: @OlgaPena
4 yrs, 7 mos on Twitter
56,362 36.4%
84.profile imageRobert Simpson

Googler, astronomer, TED Fellow. Views are my own.
10 yrs, 5 mos on Twitter
33,040 36.4%
85.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, 3 mos on Twitter
2,828 36.4%
86.profile imageJedidah Isler, PhD

Relentless Dreamer / Astrophysicist / Science Lover / Innovator / TED Fellow / Founder & Host @VanguardSTEM / @NatGeo Emerging Explorer / @TheRoot 100
7 yrs, 1 mo on Twitter
8,722 36.1%
87.profile imageJessie Christiansen

Exoplanet scientist, purveyor of fine @NASAKepler data, and science curator at @NASAExoplanetArchive.
Caltech, Pasadena, CA, USA
3 yrs, 8 mos on Twitter
2,135 36.1%
88.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, 6 mos on Twitter
24,216 35.8%
89.profile imageRisa Wechsler

astrophysicist. cosmologist. maker of universes and various kinds of trouble. professor of physics @ stanford
San Francisco
5 yrs, 0 mos on Twitter
2,692 35.8%
90.profile imageBenneHolwerda

Astronomer at large (mostly harmless). University of Louisville. Opinions & typos obv my own.
Louisville, KY
9 yrs, 2 mos on Twitter
1,168 35.8%
91.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, 5 mos on Twitter
2,008 35.4%
92.profile imageTim Peake

ESA astronaut & test pilot back on Earth after 6 months in space. Tweets are my own. Pre-order new book (proceeds to Prince's Trust): bit.ly/AAATimPeake
Cologne, Germany
5 yrs, 5 mos on Twitter
1,628,949 35.1%
93.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, 3 mos on Twitter
18,029 35.1%
94.profile imageAlan Duffy

Astronomer / physicist. A/Professor at @Swinburne making galaxies there since 2014. Instagram.com/dr.a.duffy
5 yrs, 2 mos on Twitter
16,384 35.1%
95.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, 4 mos on Twitter
11,325 35.1%
96.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, 5 mos on Twitter
1,893 35.1%
97.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, 7 mos on Twitter
120,970 34.8%
98.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, 2 mos on Twitter
4,192 34.8%
99.profile imageShit Academics Say

A social experiment | @prof_nch
4 yrs, 0 mos on Twitter
256,934 34.4%
100.profile imageJennifer L. Hoffman

    Astronomer, associate professor, alto, auntie, ailurophile.  University of Denver
Stellar Polimetry
Denver, CO
3 yrs, 8 mos on Twitter
1,953 34.4%
101.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, 3 mos on Twitter
1,220,349 34.1%
102.profile imageDavid Grinspoon

Author of EARTH IN HUMAN HANDS, Winner of Carl Sagan Medal Astrobiologist @planetarysci Musician in House Band of the Universe, Columnist for @SkyandTelescope
Earth in Human Hands
Towards Understanding the Climate...
Venus Revealed
Biosphere One
5 yrs, 11 mos on Twitter
24,725 34.1%
103.profile imageProf. Jorge Moreno

Theoretical Astrophysicist | Visiting Scholar at Harvard | AAS CSMA Chair | Assistant Professor at Pomona College | Indigenous-Latinx
Cambridge, MA
3 yrs, 1 mo on Twitter
1,271 34.1%
104.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, 1 mo on Twitter
57,364 33.8%
105.profile imageStuart

Maker of things. Co-author of a book cosmos-book.github.io with @chrisenorth. Part time at @ODILeeds ✨⭐🛰📕📊
10 yrs, 3 mos on Twitter
8,391 33.4%
106.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, 4 mos on Twitter
7,398 33.4%
107.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
7 yrs, 11 mos on Twitter
4,535 33.4%
108.profile imageSTARtorialist

Where science meets fashion and scientists get FABULOUS! By professional astronomers @Summer_Ash & @emilylurice.
The Universe
3 yrs, 9 mos on Twitter
3,333 33.4%
109.profile imageHaley Gomez

I'm an Astrophysicist, love books, films astronomy, shoes and dresses.
7 yrs, 9 mos on Twitter
2,559 33.4%
110.profile imageJJ Eldridge

NZ Astrophysicist warrior princess 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, 5 mos on Twitter
2,263 33.4%
111.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, 1 mo on Twitter
5,215 33.1%
112.profile imageAlberto Conti

Astrophysicist & Innovation Manager google.com/sky/ - hubblesite.org/ibooks Tweets are my own, at least in this multiverse.
9 yrs, 2 mos on Twitter
2,848 33.1%
113.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, 8 mos on Twitter
1,749 33.1%
114.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, 3 mos on Twitter
1,793 32.8%
115.profile imageHubble

The official Twitter account for the NASA Hubble Space Telescope. #SpotHubble
Goddard Space Flight Center
9 yrs, 6 mos on Twitter
4,029,789 32.5%
116.profile imageCERN

#CERN, the European Organization for Nuclear Research, is the world's largest particle physics lab. #WhatsUpLHC #IWorkAtCERN French: @CERN_FR
9 yrs, 2 mos on Twitter
2,431,411 32.5%
117.profile imageDr. Ian O'Neill

Recovering British solar physicist, space science writer, skeptic, liberal, atheist, alien whisperer
Woodland Hills, Los Angeles
9 yrs, 1 mo on Twitter
36,393 32.5%
118.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
7 yrs, 10 mos on Twitter
17,779 32.5%
119.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, 0 mos on Twitter
5,324 32.5%
120.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, 1 mo on Twitter
5,009 32.5%
121.profile imageGeert Barentsen

NASA Astronomer in Silicon Valley • Kepler/K2 GO Director • Thinks Bayesian • Wields Python • Likes Burritos • Does not own a cat. 🚀🌯😾
Mountain View, CA
8 yrs, 4 mos on Twitter
2,336 32.5%
122.profile imageMeredith Rawls

Stellar astronomer and data management for @LSST. Also: scicommer, violist, Episcopalian. Less nighttime blue light, more 24/7 equity. Keep looking up.
Seattle, WA
7 yrs, 7 mos on Twitter
2,020 32.5%
123.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
1 yr, 11 mos on Twitter
7,641 32.1%
124.profile image.Astronomy

Conference series about what happens when hackers, astronomers and the web all get together.
Cambridge, MA, USA
9 yrs, 4 mos on Twitter
3,911 32.1%
125.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
7 yrs, 10 mos on Twitter
201,899 31.8%
126.profile imageJason Major

Space. Planets. NASA. Science. Rocketry. Astronomy. Democracy. Nature. Birds. Coffee. Occasionally funny. Sometimes I make pictures.
Warwick, RI
7 yrs, 8 mos on Twitter
22,321 31.8%
127.profile imageWoman Astro

Promoting astronomy, encouraging women/girls interested in science. WomanAstro.com, etsy.com/shop/WomanAstro
7 yrs, 9 mos on Twitter
4,629 31.8%
128.profile imageDan F-M

I write code for good & astrophysics.
6 yrs, 1 mo on Twitter
1,988 31.8%
129.profile imageAlanStern

Scientist. Space Explorer. Optimist. Pilot. Dad. Not necessarily in that order. Follow my New Horizons Twitter feed @NewHorizons2015.
Pluto and Charon
Worlds Beyond
Our Universe
Boulder, CO
9 yrs, 1 mo on Twitter
24,041 31.5%
130.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, 4 mos on Twitter
1,453 31.5%
131.profile imageNYT Science

Science, Environment, Space and Cosmos. Sync your calendar with the solar system: nyti.ms/2vac9XL
New York, NY
10 yrs, 6 mos on Twitter
1,131,023 31.1%
132.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
7 mos on Twitter
901,888 31.1%
133.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, 7 mos on Twitter
412,060 31.1%
134.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
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Little Moon
8 yrs, 4 mos on Twitter
36,910 31.1%
135.profile imageDaniel Fischer

All things astronomy and space (and then some) - in tiny bits and pieces but mostly with links to more ... :-)
Königswinter, Germany
8 yrs, 11 mos on Twitter
12,268 31.1%
136.profile imageNancy Atkinson

Science journalist, @universetoday & @Seeker. Author of the book "Incredible Stories From Space"
9 yrs, 3 mos on Twitter
11,487 31.1%
137.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, 5 mos on Twitter
10,045 31.1%
138.profile imageDr Lisa Harvey-Smith

Astrophysicist, Ultrarunner, TV Presenter #StargazingABC, #LifeOnTheLine, Educator @AstroCourses, Gooner, Vego, Friend of Dorothy lisaharveysmith.com
5 yrs, 10 mos on Twitter
6,374 31.1%
139.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
Austin, TX
9 yrs, 3 mos on Twitter
2,552 31.1%
140.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, 0 mos on Twitter
2,254 31.1%
141.profile imageRuth Angus

Researching exoplanets & rebugging in python.
Oxford, UK
6 yrs, 4 mos on Twitter
1,373 31.1%
142.profile imageJonathan Amos

BBC Science Correspondent
Cambridge, UK
7 yrs, 8 mos on Twitter
39,991 30.8%
143.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, 5 mos on Twitter
33,155 30.8%
144.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, 6 mos on Twitter
4,790 30.8%
145.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, 6 mos on Twitter
3,373 30.8%
146.profile imageHannah Wakeford

2017 Giacconi Fellow @STScI | Currently @exo_cast podcaster, @BSACDIVER & @NASAGoddard Fellow | Previously @UniofExeter PhD | All opinions expressed are my own
5 yrs, 11 mos on Twitter
1,790 30.8%
147.profile imageBecky Smethurst

Astrophysicist researching galaxies & black holes | Presenter of videos for @sixtysymbols | @galaxyzoo | @dotastronomy | #scicomm | Enthusiasm reigns here!
Nottingham, UK
8 yrs, 5 mos on Twitter
1,558 30.8%
148.profile imageJosh Peek

Personal account; statements do not reflect the position of any employer!
8 yrs, 7 mos on Twitter
1,036 30.8%
149.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, 2 mos on Twitter
984,373 30.5%
150.profile imageSPACE.com

News coverage and conversation about space science, astronomy and exploration. Part of @Purch
9 yrs, 2 mos on Twitter
678,928 30.5%
151.profile imageESA Operations

From Earth orbit to deep space: sharing the excitement of realtime mission operations at ESA #ESOC50 8 September 2017
Darmstadt, Germany
8 yrs, 10 mos on Twitter
230,252 30.5%
152.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, 6 mos on Twitter
88,962 30.5%
153.profile imageMika McKinnon

Field geophysicist, disaster researcher, scifi science consultant, science writer, public speaker, irrepressible educator.
West Coast
8 yrs, 3 mos on Twitter
17,698 30.5%
154.profile imageBlackPhysicists

Arlington, VA and Worldwide
8 yrs, 3 mos on Twitter
16,440 30.5%
155.profile imageScott Kelly

Houston, TX
8 yrs, 1 mo on Twitter
4,515,117 30.1%
156.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, 4 mos on Twitter
1,262,853 30.1%
157.profile imageCorey S. Powell

Science editor at @aeonmag. Contributing editor for @discovermag and @AmSciMag. Science writer on @BillNyeSaves. Science-curious.
8 yrs, 6 mos on Twitter
43,443 30.1%
158.profile imageAlan Boyle

Aerospace and science editor @GeekWire. Longtime blogger @CosmicLog. Author of "The Case for Pluto." Links/RTs ≠ endorsements
9 yrs, 7 mos on Twitter
31,603 30.1%
159.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, 2 mos on Twitter
2,101 30.1%
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, 3 mos on Twitter
1,925 30.1%
161.profile imageAdam Burgasser

astrophysicist, professor, and preferably in the water.
on a plane, or San Diego
7 yrs, 1 mo on Twitter
1,335 30.1%
162.profile imageScientific American

Founded in 1845, Scientific American is the authoritative source for the science discoveries and technology innovations that matter.
New York City, NY, USA
9 yrs, 4 mos on Twitter
3,161,837 29.8%
163.profile imageLIGO

I am the Laser Interferometer Gravitational-wave Observatory. I look for space-time ripples.
Livingston, LA and Hanford, WA
9 yrs, 3 mos on Twitter
45,386 29.8%
164.profile imageKaren James

Rogue scientist (DNA barcoding, nanopore sequencing, #citizenscience), outdoorswoman, astronaut hopeful, intersectional feminist, all works in progress
Bar Harbor, Maine, USA
8 yrs, 10 mos on Twitter
26,517 29.8%
165.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, 4 mos on Twitter
11,187 29.8%
166.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, 7 mos on Twitter
4,170 29.8%
167.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)
2,305 29.8%
168.profile imageMichelle Collins

Astrophysics Lecturer @surreyastro, working on Local Group galaxies. Soft spot for Andromeda. Keen runner therunningastronomer.com
Guildford, England
8 yrs, 4 mos on Twitter
1,172 29.8%
169.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, 3 mos on Twitter
431,426 29.5%
170.profile imageMatt Taylor

I work at ESA on the Rosetta mission. 501st Dutch Garrison TK67676 EIB
5 yrs, 0 mos on Twitter
34,362 29.5%
171.profile imageAstro Union

Founded in 1919, the International Astronomical Union (IAU) promotes and safeguards the science of astronomy through international cooperation.
3 yrs, 3 mos on Twitter
4,711 29.5%
172.profile imageWIRED Science

Bringing the radiothermally generated heat. The team: @KatieMPalmer, @JetJocko, @MeganMolteni, and @MrMattSimon.
San Francisco, California
10 yrs, 0 mos on Twitter
2,080,773 29.1%
173.profile imageScience Friday

Brain fun for curious people. Hosted by @iraflatow, from @PRI.
New York, New York
8 yrs, 11 mos on Twitter
771,154 29.1%
174.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, 8 mos on Twitter
106,985 29.1%
175.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, 3 mos on Twitter
27,912 29.1%
176.profile imagegalaxyzoo

It's Galaxy Zoo!
8 yrs, 8 mos on Twitter
13,574 29.1%
177.profile imageRobert McNees

Theoretical physicist and professor. Black holes, quantum gravity, cosmology. Venusian clunk. Tar Heel. RT = spooky action at a distance. Opinions are all mine.
Chicago, z=0
9 yrs, 3 mos on Twitter
8,313 29.1%
178.profile imageMeg Rosenburg

planetary science PhD | #scicomm & #histSTM | freelancer, filmmaker, podcaster | megrosenburg.com | And what you do, do it unfeignedly.
Somerville, MA
4 yrs, 9 mos on Twitter
4,357 29.1%
179.profile imageJesse Shanahan

Astrophysicist, linguist, & science writer. Cofounded @AAS_WGAD, creator of #disabledandSTEM. Video game reviews on @Metacritic & ICXM! #INTJ
Stolen Manahoac Land
6 yrs, 3 mos on Twitter
4,145 29.1%
180.profile imageDavid Kipping

Astronomy Professor @Columbia University | Cool Worlds Lab | @YouTube #CoolWorlds #scicomm channel | #equityinSTEM #exoplanets #astrostatistics #ClimateAction
The Transits of Extrasolar Planet...
8 yrs, 6 mos on Twitter
2,551 29.1%
181.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, 6 mos on Twitter
1,941 29.1%
182.profile imageJohanna

Astronomer, runner, educator, feminist, vegan, baker, #Nats fan
Pasadena, CA
3 yrs, 8 mos on Twitter
1,436 29.1%
183.profile imageEmily Levesque

The real exciting sound in science is not, 'Eureka!' It's, 'Wow, that's weird.'
Seattle, WA
7 yrs, 7 mos on Twitter
1,239 29.1%
184.profile imageBobak Ferdowsi

Explorer of space. Engineer on NISAR Earth Science & Europa Clipper. Mars Curiosity, Cassini Saturn Opinions mine
Pasadena, CA
8 yrs, 1 mo on Twitter
106,008 28.8%
185.profile imageAmy Mainzer

Jet Propulsion Laboratory
4 yrs, 7 mos on Twitter
25,487 28.8%
186.profile imageErik Tollerud

Astrophysicist, Python coder, and general lover of nature in all its forms.
Baltimore, MD
8 yrs, 3 mos on Twitter
984 28.8%
187.profile imageRobert Massey

Dad, Acting Executive Director RAS. RTs and likes not endorsements, views expressed are my own. For official comment see @royalastrosoc
Bristol (Southville) & London
8 yrs, 1 mo on Twitter
2,539 28.5%
188.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, 5 mos on Twitter
160,298 28.1%
189.profile imageDNLee

#NewProf, Mammalogist, Diversity & Access to STEM, Unapologetically Intersectional, Mama Panyabuku, TED Fellow, NatGeo Emerging Explorer
Midwest, US; Tanzania, Africa
7 yrs, 1 mo on Twitter
23,802 28.1%
190.profile imageESA Gaia

Science with 1 billion objects in three dimensions
8 yrs, 7 mos on Twitter
13,955 28.1%
191.profile imageWill Gater

Astronomer, journalist & space geek willgater.com | willgaterastrophotography.com
9 yrs, 4 mos on Twitter
7,635 28.1%
192.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, 3 mos on Twitter
15,330,524 27.8%
193.profile imageHUBBLE

The official feed of ESA/Hubble. The Hubble Space Telescope is the space-based observatory which has revolutionised modern astronomy.
7 yrs, 4 mos on Twitter
467,781 27.8%
194.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, 7 mos on Twitter
33,208 27.8%
195.profile image★ Colin Stuart ★

Astronomy author, writer & international speaker. Get my weekly astronomy newsletter @ eepurl.com/cSCnoT. See www for books, keynotes & school talks.
13 Journeys Through Space and Tim...
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8 yrs, 9 mos on Twitter
5,824 27.8%
196.profile imageTrueSciPhi

A window on science and philosophy communities on Twitter and YouTube, by Kelly Truelove. See site for more.
2 yrs, 3 mos on Twitter
3,618 27.8%
197.profile imageJames Davenport

Astronomy PhD, Postdoctoral Fellow, blogger, casual data analyst, Seattleite. All opinions are my own.
5 yrs, 4 mos on Twitter
1,708 27.8%
198.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
5 yrs, 9 mos on Twitter
1,620 27.8%
199.profile imageJonathan Pritchard

Imperial astrophysicist and bewildered vagabond. SKA enthusiast. (opinions mine, not employer's)
Richmond, London
6 yrs, 8 mos on Twitter
1,315 27.8%
200.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, 6 mos on Twitter
1,059,227 27.5%
201.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, 5 mos on Twitter
1,042,599 27.5%
202.profile imagePHD Comics

Life (or the lack thereof) in Academia. Check out my new book WE HAVE NO IDEA
9 yrs, 2 mos on Twitter
167,321 27.5%
203.profile imageJackie Faherty

Astrophysicist at @AMNH. Enthusiast for bringing the cosmos to the public @backyardworlds #womeninscience #BDNYC #manhattanhenge calculator. #scicomm
8 yrs, 6 mos on Twitter
3,141 27.5%
204.profile imageJo Dunkley

Professor of Physics and Astrophysics at Princeton
Princeton, NJ
5 yrs, 11 mos on Twitter
1,712 27.5%
205.profile imageGrant Tremblay

Astrophysicist at the Harvard-Smithsonian Center for Astrophysics Views my own.
Cambridge, MA
8 yrs, 6 mos on Twitter
1,071 27.5%
206.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, 1 mo on Twitter
3,695 27.2%
207.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, 8 mos on Twitter
3,672 27.2%
208.profile imageStephen Serjeant

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An Introduction to Galaxies and C...
Observational Cosmology
8 yrs, 5 mos on Twitter
2,002 27.2%
209.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
7 yrs, 11 mos on Twitter
199,795 26.8%
210.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)
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Cambridge, MA
6 yrs, 11 mos on Twitter
6,082 26.8%
211.profile imageChris North

Lecturer & astronomer @CardiffPHYSX. Co-author of cosmos-book.github.io + other books, semi-regular broadcaster (e.g. pythagastro.uk). Comments own
How to Read the Solar System
The Sky at Night
Cardiff (normally)
7 yrs, 11 mos on Twitter
5,121 26.8%
212.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, 1 mo on Twitter
3,003 26.8%
213.profile imageSloan Digital Sky

Tweeting about mapping the Universe @APOGEEsurvey @eBOSSurvey @MaNGASurvey
Apache Point Observatory.
4 yrs, 7 mos on Twitter
2,654 26.8%
214.profile imageInstitute of Physics

Official Twitter account for the Institute of Physics (IOP). facebook.com/instituteofphy…
8 yrs, 4 mos on Twitter
158,542 26.5%
215.profile imageHubbleTelescope

News from the Hubble Space Telescope operated by @stsci
9 yrs, 3 mos on Twitter
117,546 26.5%
216.profile imageTetraquark Meson 🌈

Scientist | Space | Astropalaeontology | Co-founder, @realscientists | Dinosaur Evangelist | Science poetry and feelings |
Naarm, Great Southern Land
7 yrs, 0 mos on Twitter
23,173 26.5%
217.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, 3 mos on Twitter
2,884 26.5%
218.profile imageJames Bullock

Professor and Chair, Department of Physics & Astronomy, UC Irvine. Cosmologist, Anteater, and Buckeye.
California, USA
8 yrs, 1 mo on Twitter
2,463 26.5%
219.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, 4 mos on Twitter
1,814 26.5%
220.profile imageJoss Bland-Hawthorn

All things novel, astrophysical, mathematical, technological.
The Origin of the Galaxy and Loca...
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Sydney, Australia
3 yrs, 3 mos on Twitter
1,488 26.5%
221.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, 7 mos on Twitter
1,458 26.5%
222.profile imageKatey Alatalo✨

Ph.D. astronomer at @CarnegieAstro and soon @stsci. Science is amazing! My views are my own.
Pasadena, CA
9 yrs, 3 mos on Twitter
1,274 26.5%
223.profile imageDr. Brian May

Rocket Ship Builder
4 yrs, 11 mos on Twitter
505,110 26.2%
224.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.
6 yrs, 10 mos on Twitter
4,368 26.2%
225.profile imageAndy Rivkin

Planetary astronomer on #TeamAsteroid; Gedankenband member and guitarist; Persistently Obstreperous.
9 yrs, 3 mos on Twitter
3,180 26.2%
226.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, 9 mos on Twitter
2,683 26.2%
227.profile imageBenjamin Pope

Astronomer, Bayesian, foodie
Eora Country
4 yrs, 8 mos on Twitter
2,146 26.2%
228.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, 3 mos on Twitter
48,285 25.8%
229.profile imageKim Kowal Arcand

Mom of 2. Science viz lead for @chandraxray; Newest book coming out soon! "Magnitude: The Scale of the Universe." Opinions=my own 🛰️🚀https://t.co/jHO1Tw8JYW
9 yrs, 6 mos on Twitter
7,318 25.8%
230.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, 6 mos on Twitter
3,847 25.8%
231.profile imageRadio Astrology

Opening new windows in the prediction spectrum. Astrology at long wavelengths.
In the stars (and the ISM)
5 yrs, 10 mos on Twitter
3,065 25.8%
232.profile imageJen Gupta

Space nerd. @UoPCosmology outreach. @SeldomSirius podcaster. @TWBBC Live presenter. @WinSciFest director. Active Galaxies were my first love. Views are my own.
Winchester, UK
8 yrs, 1 mo on Twitter
2,887 25.8%
233.profile imageHillary Clinton

Wife, mom, grandma, women+kids advocate, FLOTUS, Senator, SecState, hair icon, pantsuit aficionado, 2016 presidential candidate.
New York, NY
4 yrs, 5 mos on Twitter
18,192,168 25.5%
234.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, 3 mos on Twitter
1,830,152 25.5%
235.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
6 yrs, 10 mos on Twitter
77,029 25.5%
236.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, 1 mo on Twitter
70,186 25.5%
237.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
8 yrs, 10 mos on Twitter
2,452 25.5%
238.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
6 yrs, 10 mos on Twitter
2,262 25.5%
239.profile imageDerek Fox

Research astronomer and faculty member at Penn State University. This is a personal Twitter account.
8 yrs, 6 mos on Twitter
2,063 25.5%
240.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, 4 mos on Twitter
1,089 25.5%
241.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, 2 mos on Twitter
12,832,446 25.2%
242.profile imageMike Massimino

Former @NASA astronaut, Professor at Columbia @CUSEAS, Sr. Advisor for Space Programs @IntrepidMuseum, Author of #Spaceman
New York, NY
8 yrs, 5 mos on Twitter
1,363,049 25.2%
243.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, 1 mo on Twitter
466,344 25.2%
244.profile imageAriel Waldman

Author of WHAT'S IT LIKE IN SPACE? amzn.to/1MFUEVC. NASA Advisor. Founder Spacehack.org. Global Director @ScienceHackDay. youtube.com/arielwaldman
San Francisco
10 yrs, 6 mos on Twitter
30,200 25.2%
245.profile imageHistory of Astronomy

Multidisciplinary and multicultural #history of #astronomy by @VoulaSaridakis, Ph.D. | Curator at the Museum of Science and Industry, Chicago @msichicago.
All tweets/views/opinions mine
2 yrs, 6 mos on Twitter
17,100 25.2%
246.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, 7 mos on Twitter
1,407 25.2%
247.profile imageNational Science Fdn

Where Discoveries Begin. Social media policy: bit.ly/smpnsf
Arlington, Virginia
9 yrs, 0 mos on Twitter
1,078,603 24.5%
248.profile imageKimberly EnnicoSmith

"A cup of tea would restore my normality." - Douglas Adams (HHGTTG)
Mountain View, CA
9 yrs, 6 mos on Twitter
3,706 24.5%
249.profile imageAstropy

This is the official twitter account for the Astropy project.
6 yrs, 2 mos on Twitter
2,017 24.5%
250.profile imageSAO/NASA ADS

6 yrs, 9 mos on Twitter
1,747 24.5%
251.profile imageAdrian Price-Whelan

astrophysics postdoc @ Princeton, galaxy dynamics github.com/adrn facebook.com/operatormusicb…
Princeton, NJ
6 yrs, 3 mos on Twitter
1,212 24.5%
252.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.
5 yrs, 10 mos on Twitter
116,392 24.2%
253.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, 8 mos on Twitter
45,784 24.2%
254.profile imageNRAO

The National Radio Astronomy Observatory is a facility of the National Science Foundation. Social media policy: bit.ly/2qNhpB3
Charlottesville, VA
8 yrs, 11 mos on Twitter
12,068 24.2%
255.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, 2 mos on Twitter
4,795 24.2%
256.profile imageLSST Astronomy

The widest, fastest, deepest eye of the new digital age.
Cerro Pachon, Chile
9 yrs, 1 mo on Twitter
3,013 24.2%
257.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, 2 mos on Twitter
2,204 24.2%
258.profile imageCaitlin Casey

Astronomer and Assistant Professor at the University of Texas at Austin.
Austin, TX
3 yrs, 7 mos on Twitter
999 24.2%
259.profile imageNate Silver

Editor-in-Chief, @FiveThirtyEight. Author, The Signal and the Noise (amzn.to/QdyFYV). Sports/politics/food geek.
New York
9 yrs, 0 mos on Twitter
2,547,359 23.8%
260.profile imageNASA Kennedy / KSC

Official Tweets from NASA's Kennedy Space Center
Florida, USA
8 yrs, 11 mos on Twitter
1,361,449 23.8%
261.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, 4 mos on Twitter
244,395 23.8%
262.profile imageAstronomy Magazine

The best-selling astronomy magazine
Our tiny corner of the cosmos
8 yrs, 6 mos on Twitter
188,844 23.8%
263.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, 0 mos on Twitter
28,832 23.8%
264.profile imageSTFC

Science and Technology Facilities Council: Pioneering science for a better future. See @STFC_B2B for business news.
8 yrs, 0 mos on Twitter
14,769 23.8%
265.profile imageSquareKilometreArray

The SKA will be the world's largest radio telescope, located in Africa & Australia. Headquarters @jodrellbank. Tweets by @wilgarnier, @matisidro & @JoeJDiamond
Jodrell Bank (UK)
6 yrs, 11 mos on Twitter
10,666 23.8%
266.profile imageEllen Stofan

Planetary geologist, STEM advocate, former Chief Scientist of NASA
Exploring Venus as a Terrestrial ...
5 yrs, 7 mos on Twitter
8,037 23.8%
267.profile imageHenna

Founder at Universe Simplified (@UnivSimplified), Proponent of Disrupt Education and Maker Spaces, Astronomy Enthusiast, Backpacker
8 yrs, 3 mos on Twitter
6,996 23.8%
268.profile imageKeri Bean

Engineer @NASAJPL on @NASA_Dawn + @MarsRovers, R2 builder @R2Keri @KN_3X, @SunriderBase @RebelLegion Rey, @JeffAMcGee's wife, TX Aggie, Hufflepuff
Pasadena, CA
6 yrs, 4 mos on Twitter
6,517 23.8%
269.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, 6 mos on Twitter
1,101 23.8%
270.profile imageStephen Colbert

9 yrs, 0 mos on Twitter
15,291,060 23.5%
271.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, 6 mos on Twitter
1,344,961 23.5%
272.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, 7 mos on Twitter
3,810 23.5%
273.profile imageEmily Petroff

Astronomer. Reader. Random number generator. I study things that go bang.
The Netherlands
4 yrs, 2 mos on Twitter
2,740 23.5%
274.profile imageAnais Rassat

Science. Interested in tech, innovation & science policy. Knowledge Transfer @CERN #CERNKT. Formerly @EPFL, @CEASaclay, @UCL . Celebrating #Einstein100. TCK.
7 yrs, 7 mos on Twitter
1,904 23.5%
275.profile imageIИVΔDΞR ⭐️ XΔИ

#ActualDeadScientist "I myself am made entirely of flaws, stitched together with good intentions." – Augusten Burroughs
The Second Circle of Hell
8 yrs, 5 mos on Twitter
1,803 23.5%
276.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, 1 mo on Twitter
1,269 23.5%
277.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, 8 mos on Twitter
846 23.5%
278.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
4 yrs, 10 mos on Twitter
775 23.5%
279.profile imageJ.K. Rowling

Author. Apologies, but I cannot guarantee answers to DMs.
8 yrs, 1 mo on Twitter
12,605,583 23.2%
280.profile imageDara Ó Briain

Infamous Brit-Licker; also been known to hand out free puppies. Currently touring new show Crowd Tickler
Beneath your wings.
8 yrs, 3 mos on Twitter
2,487,263 23.2%
281.profile imageBBC Science News

News, features and analysis from the BBC Science & Environment news desk.
London, England
10 yrs, 8 mos on Twitter
1,369,168 23.2%
282.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, 7 mos on Twitter
1,312,305 23.2%
283.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, 3 mos on Twitter
46,864 23.2%
284.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.
7 yrs, 11 mos on Twitter
14,085 23.2%
285.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, 5 mos on Twitter
11,995 23.2%
286.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
6 yrs, 10 mos on Twitter
3,736 23.2%
287.profile imageEdward Gomez 🤖

Astronomer, coder, and web technology enthusiast. Believe everyone can be a scientist if they ask more questions.
Cardiff, UK
9 yrs, 3 mos on Twitter
1,782 23.2%
288.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, 6 mos on Twitter
1,560 23.2%
289.profile imageNola Taylor Redd

Freelance #science writer with a focus in #space and #astronomy.
Atlanta, GA
2 yrs, 3 mos on Twitter
1,546 23.2%
290.profile imageJoanna Barstow

RAS Research Fellow and Planetary Scientist at UCL. Astromum. STEM Ambassador, sci outreacher, FRAS, ScienceGrrl. Christian, singer, bookworm.
4 yrs, 0 mos on Twitter
1,126 23.2%
291.profile imageCaryl Gronwall

Astronomer at Penn State University
State College, PA
6 yrs, 6 mos on Twitter
893 23.2%
292.profile imageElise Andrew

just a liberal, freckle-faced slut - some dude on Twitter. Also, I Fucking Love Science.
London, England
4 yrs, 6 mos on Twitter
67,022 22.8%
293.profile imageRemco Timmermans

Aspiring to be the best in social media for space | Owner @SeventyMedia | CEO @SpaceUpConf | Faculty for @ISU_SSP #SSP18 | Team #EUSW2017
The Netherlands
8 yrs, 7 mos on Twitter
22,571 22.8%
294.profile imageNick Howes

Astronomer, Consultant and Science Writer - Fellow of Royal Astronomical Society. Director of Aerolite Meteorites in UK/Europe
Cherhill in Wiltshire
7 yrs, 9 mos on Twitter
14,553 22.8%
295.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, 1 mo on Twitter
8,444 22.8%
296.profile imageLisa Grossman

Astronomy reporter at Science News, lifelong astronomy nerd. Ideas my own.
Cambridge, MA
8 yrs, 6 mos on Twitter
5,517 22.8%
297.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, 7 mos on Twitter
1,854 22.8%
298.profile imageVanessa Moss

Adventures of the Cosmic Pudding & sidekick Vanessa: astronomy research, outreach, observing... I run @arXiver & @AstroJobVis. More interesting than a giraffe.
Dwingeloo, Nederland
4 yrs, 4 mos on Twitter
1,584 22.8%
299.profile imageAngela Speck

I am a tattooed witchy astrolator and queen of astromineralogy; currently living in the Midwest.
Columbia, MO
6 yrs, 5 mos on Twitter
1,422 22.8%
300.profile imageCourtney Dressing

I'm an astronomer looking for potentially Earth-like planets around nearby stars.
Pasadena, CA
2 yrs, 9 mos on Twitter
1,346 22.8%