Astronomers' Favorite Twitter Feeds

Updated: 2018-Mar-14 19:09 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
Raleigh, NC
8 yrs, 10 mos on Twitter
262,479 72.6%
2.profile imagePhil Plait

SCIENCE! I love this stuff. My Bad Astronomy blog: syfy.com/badastronomy I use "likes" for bookmarks. No endorsement implied.
Bad Astronomy
10 yrs, 11 mos on Twitter
623,507 70.5%
3.profile imageNASA

Explore the universe and discover our home planet with @NASA. We usually post in EST (UTC-5)
10 yrs, 2 mos on Twitter
28,811,703 70.2%
4.profile imageEmily Lakdawalla

Senior Editor & Planetary Evangelist, The Planetary Society. Planetary scientist, writer, public speaker. Writing a book on Curiosity mission. Asteroid 274860.
The Design and Engineering of Cur...
Pasadena, CA
9 yrs, 9 mos on Twitter
144,371 68.1%
5.profile imageNeil deGrasse Tyson

Accessory to War
StarTalk Young Readers Edition (S...
Welcome to the Universe
New York City
9 yrs, 1 mo on Twitter
12,045,126 62.0%
6.profile imagechrislintott

Astronomer, zookeeper and journalist, based at University of Oxford.
The Cosmic Tourist
Exploring the Mysteries of the Un...
9 yrs, 5 mos on Twitter
27,601 57.1%
7.profile imageBarack Obama

Dad, husband, President, citizen.
Washington, DC
11 yrs, 0 mos on Twitter
100,809,203 55.9%
8.profile imageCuriosity Rover

Your friendly neighborhood NASA Mars rover. Exploring the Red Planet since 2012. Team headquartered at NASA's Jet Propulsion Laboratory 🚀 @NASAJPL
Gale Crater, Mars
9 yrs, 7 mos on Twitter
3,932,087 55.9%
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, 11 mos on Twitter
37,404 55.0%
10.profile imageSarah Kendrew

Astronomer with the European Space Agency. Based at the Space Telescope Science Institute in Baltimore. Astronomy, running, bikes. Opinions my own. 🇧🇪🇬🇧
10 yrs, 5 mos on Twitter
6,344 54.7%
11.profile imageLucianne Walkowicz

Chair of Astrobiology @librarycongress studying ethics of Mars exploration, astronomer @AdlerPlanet, multimedia artist. (banner: "Afronauts" by @tobogganeer) Ⓥ
Washington, DC
7 yrs, 0 mos on Twitter
11,530 53.8%
12.profile imageM. Womack

"Well-versed scrutinizer" of astrophysics & planetary science, USF professor #teamcomets #astrochemistry #scipolicy #planetarydefense Contains no pseudoscience
Tampa, Florida
8 yrs, 7 mos on Twitter
4,270 53.8%
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, 11 mos on Twitter
5,093 53.2%
14.profile imageAstroBetter

Blog and Wiki for professional astronomers.
8 yrs, 10 mos on Twitter
4,482 52.6%
15.profile imageSpaceX

SpaceX designs, manufactures and launches the world’s most advanced rockets and spacecraft.
Hawthorne, CA
8 yrs, 10 mos on Twitter
6,658,687 52.0%
16.profile imageAstrotweeps: Emily Rice

Emily Rice • @emilylurice • https://t.co/VbzNcThkH8 • A new astronomer/planetary scientist tweeting about space each week.
The Universe
4 yrs, 2 mos on Twitter
7,848 51.7%
17.profile imageBrian Cox

Oldham, UK, Europe, Citizen of the World.
The Earth, with everyone else
9 yrs, 3 mos on Twitter
2,859,629 50.8%
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, 6 mos on Twitter
1,334,303 50.8%
19.profile imageJulianne Dalcanton

Astrophysicist at the University of Washington. Principal Investigator of the Panchromatic Hubble Andromeda Treasury (PHAT).
6 yrs, 2 mos on Twitter
5,638 50.5%
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, 11 mos on Twitter
9,077 50.2%
21.profile imageKaren Masters 💫⭐️✨

Professor of astrophysics @haverfordedu. Investigating galaxies with @GalaxyZoo @SDSSurveys. Touch a galaxy @TactileUniverse. Mostly tweeting astronomy. British
Ardmore, PA
9 yrs, 0 mos on Twitter
6,423 50.2%
22.profile imageESA

European Space Agency, keeping you posted on European space activities.
9 yrs, 0 mos on Twitter
829,172 49.8%
23.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
7 yrs, 2 mos on Twitter
6,728 49.8%
24.profile imageElon Musk

8 yrs, 9 mos on Twitter
20,328,477 49.5%
25.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, 7 mos on Twitter
6,708 49.5%
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.
9 yrs, 1 mo on Twitter
2,616,074 49.2%
27.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, 11 mos on Twitter
59,040 49.2%
28.profile imageSarah Tuttle

Astrophysicist. Vashti or Mordechai, depends on the day. Armed with wrenches & a dream. Professor. Legally & reputationally risky. 100% problematic.
Feminist Dystopian Hellscape
10 yrs, 1 mo on Twitter
9,641 49.2%
29.profile imageFraser Cain

Publisher of universetoday.com, co-host of astronomycast.com. Named after Asteroid 158092.
Courtenay, British Columbia
10 yrs, 11 mos on Twitter
37,978 48.6%
30.profile imageSean Carroll

Physicist and author at Caltech. Married to @JenLucPiquant. In favor of truth and kindness.
Los Angeles
9 yrs, 0 mos on Twitter
181,515 48.0%
31.profile imageMolly Peeples

Astronomer in the Science Policies Group @STScI playing with galaxies & gas, real & fake. #Hubble, #JWST, #WFIRST pay the bills; opinions are my own. She/her.
Baltimore, MD, z=0
5 yrs, 5 mos on Twitter
5,072 47.7%
32.profile imageAlex Parker

Planetary astronomer and artist exploring the origin and history of our solar system.
Boulder, Colorado
9 yrs, 2 mos on Twitter
24,815 47.4%
33.profile imageAlyssa A. Goodman

Astronomy Professor at Harvard, CoDirector of Science at Radcliffe Institute. Loves data, visualization, Universe, education, people. Not in that order.
9 yrs, 1 mo on Twitter
3,468 47.4%
34.profile imageCatherine Q.

Astrophysicist, science communicator, over-thinker. One of @HuffPostscience Top 30 Physicists to follow. Autoimmune illness girl. Kiwi in US. Dogs rule.
9 yrs, 0 mos on Twitter
38,932 46.8%
35.profile imageMC Stardust ✨ Inclusion Rider 4 Life

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, 11 mos on Twitter
11,774 46.8%
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, 7 mos on Twitter
4,296 46.8%
37.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
9 yrs, 1 mo on Twitter
4,183 46.8%
38.profile imageMeg Urry

Yale physics prof, likes supermassive black holes, teaching, writing, increasing participation in STEM, my family
Yale University
6 yrs, 4 mos on Twitter
4,249 45.9%
39.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
9 yrs, 1 mo on Twitter
15,523 45.3%
40.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, 4 mos on Twitter
13,235 45.3%
41.profile imageBrooke Simmons

Somewhat distracted astrophysicist researching galaxies & black holes; on @galaxyzoo & @the_zooniverse teams. Also planetaryresponsenetwork.org lead.
San Diego, CA
9 yrs, 6 mos on Twitter
4,277 45.3%
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
10 yrs, 1 mo on Twitter
36,562 44.7%
43.profile imageEmily Rice

Astronomer at @csinews, @GC_CUNY, & @AMNH; #BDNYC & #CUNYAstro; @AstronomyOnTap organizer, 1/2 of @startorialist, & @knitted_bd host ⭐️. Not @djcarlysagan 😜
10 yrs, 6 mos on Twitter
4,072 44.1%
44.profile imageCassiniSaturn

Explored Saturn, its moons and the magnificent rings. Science still in progress.
Saturn, Solar System
9 yrs, 8 mos on Twitter
1,613,996 43.8%
45.profile imageNASA Kepler and K2

Launched in March 2009, Kepler is NASA's first spacecraft to detect Earth-size planets in the just-right Goldilocks habitable zone of other stars.
Trailing Earth around the Sun
9 yrs, 3 mos on Twitter
625,260 43.8%
46.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)
494,899 43.8%
47.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, 9 mos on Twitter
20,275 43.5%
48.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
8 yrs, 3 mos on Twitter
21,504 43.2%
49.profile imageSarcasticRover

Doing a science on the red planet. Not @MarsCuriosity. Portrait by @badportraits. Written by @jfiliatrault.
4th Rock From the Sun
5 yrs, 7 mos on Twitter
924,080 42.9%
50.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, 11 mos on Twitter
384,332 42.9%
51.profile imageMichele Bannister

Planetary astronomer, poet, hunter of new and strange worlds. Connoisseur of fuzzy dots of light. Asteroid (10463). Research Fellow @AstroQUB.
living the life non-sidereal
9 yrs, 0 mos on Twitter
6,749 42.9%
52.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
Chukson / Tucson, AZ
7 yrs, 10 mos on Twitter
6,430 42.6%
53.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, 7 mos on Twitter
276,578 41.9%
54.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.
6 yrs, 2 mos on Twitter
4,098 41.6%
55.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, 10 mos on Twitter
3,970 41.6%
56.profile imageESO

The European Southern Observatory (ESO) is the most productive observatory in the world.
Garching, Germany
9 yrs, 7 mos on Twitter
66,666 41.3%
57.profile imageBill Nye

Bill Nye Saves the World Season 2, Part 1 now streaming on Netflix.
8 yrs, 10 mos on Twitter
5,784,215 41.0%
58.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
4 yrs, 2 mos on Twitter
2,731 41.0%
59.profile imageDavid Spergel

Astrophysicist at Princeton University and Flatiron Institute
Princeton NJ
4 yrs, 1 mo on Twitter
4,283 40.7%
60.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, 6 mos on Twitter
2,389,989 40.1%
61.profile imagePlanetary Society

We are the world's space exploration team. Join us.
Pasadena, CA
7 yrs, 5 mos on Twitter
175,662 40.1%
62.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, 6 mos on Twitter
1,891,277 39.8%
63.profile imageChanda Shuri Prescod-Weinstein🙅🏽‍♀️ 🇧🇧 🙅🏽‍♀️

La Prescod-Weinstein de East Los, astro|physicist, ethno/#HistSTM, EditorInChief @ The Offing, #QTPOC #enby #BlackandSTEM #Wakandan medium.com/@chanda
9 yrs, 9 mos on Twitter
24,591 39.8%
64.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, 11 mos on Twitter
16,959 39.8%
65.profile imageDr Chiara Mingarelli

Gravitational-wave astrophysicist. Flatiron Research Fellow at @FlatironCCA. Formerly @Caltech, @NASAJPL, and MPIfR. Views my own.
New York, NY
7 yrs, 0 mos on Twitter
5,309 39.8%
66.profile imageNASA's Juno Mission

Exploring Jupiter to improve our understanding of the planet's origins and the formation of planetary systems. missionjuno.org nasa.gov/juno
9 yrs, 1 mo on Twitter
694,086 39.5%
67.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, 6 mos on Twitter
338,294 39.5%
68.profile imageJessie Christiansen

NASA Staff Scientist | #exoplaneteer | #WomenInStem advocate | Science curator at @NASAExoArchive | Usual nerd grab-bag of fandoms
Caltech, Pasadena, CA, USA
4 yrs, 2 mos on Twitter
3,656 39.5%
69.profile imageSarah Ballard

Habitable worlds, kindness, fiction, etc. At ~75 km/s*Mpc! One half of @drssarahcare
Cambridge, MA
4 yrs, 1 mo on Twitter
2,914 39.5%
70.profile imageAlexandra Witze

Correspondent for Nature. Reach me: witzescience-at-gmail-dot-com, or for secure correspondence, awitze-at-protonmail-dot-com.
Boulder, CO
9 yrs, 0 mos on Twitter
18,318 39.2%
71.profile imageMatthew R Francis

Writer of physics and astronomy. Wearer of jaunty hats. Tryin' to publish a novel. Proud Rebel scum. Avatar by @ScienceComic .
Cleveland, OH
7 yrs, 6 mos on Twitter
15,755 39.2%
72.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, 10 mos on Twitter
691,750 38.9%
73.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)
416,061 38.9%
74.profile imageESA Science

Science @ the European Space Agency ESA, keeping you posted on European space science activities.
Noordwijk, The Netherlands
8 yrs, 2 mos on Twitter
278,475 38.9%
75.profile imageJane MacArthur

Planetary scientist @UniOfLeicester studying martian meteorites & comet dust. Writer @PopAstro. Fellow @RoyalAstroSoc #RAS200 #Violinist
9 yrs, 1 mo on Twitter
6,790 38.9%
76.profile imageChristina R.

Planetary Scientist/Astrophysicist, fighter 4 inclusion in STEM, love/hate relationship w/ workouts, wine drinker, making my mom proud; views are my own.
Los Angeles, CA
2 yrs, 5 mos on Twitter
2,071 38.9%
77.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, 8 mos on Twitter
3,611 38.3%
78.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
5 yrs, 1 mo on Twitter
2,270 38.3%
79.profile imageUniverse Today

Universe Today - universetoday.com, a website about space and astronomy. Tweets are probably coming from @fcain
Courtenay, British Columbia
9 yrs, 0 mos on Twitter
284,706 38.0%
80.profile imageNadia Drake

Contributing writer @natgeo. Former ballet dancer. Slightly obsessed with planets (and MOONS), supernovas and spiders. Champagneophile.
7 yrs, 5 mos on Twitter
23,725 38.0%
81.profile imageKevin Schawinski

Asst Prof @ETH_en | black holes | galaxies | #citizenscience | @galaxyzoo | deep learning | speaker | space.ml
Zurich, Switzerland
7 yrs, 1 mo on Twitter
4,008 38.0%
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/M4DdnmRv4N
9 yrs, 1 mo on Twitter
3,380,964 36.8%
83.profile imageMarc Kuchner

PI of Citizen Science projects backyardworlds.org, diskdetective.org, Astrophysicist, Songwriter.
Marketing for Scientists
Greenbelt, MD
9 yrs, 3 mos on Twitter
5,776 36.8%
84.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
9 yrs, 1 mo on Twitter
133,344 36.5%
85.profile imageBenneHolwerda

Astronomer at large (mostly harmless). University of Louisville. Opinions & typos obv my own.
Louisville, KY
9 yrs, 8 mos on Twitter
1,333 36.5%
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, 8 mos on Twitter
4,491 36.2%
87.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, 11 mos on Twitter
2,197 36.2%
88.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
5 yrs, 3 mos on Twitter
75,879 35.9%
89.profile imageJedidah Isler, PhD

Relentless Dreamer / Astrophysicist / Science Lover / Innovator / TED Fellow / Founder & Host @VanguardSTEM / @NatGeo Emerging Explorer
7 yrs, 7 mos on Twitter
10,133 35.9%
90.profile imageSTARtorialist

Where science meets fashion and scientists get FABULOUS! By professional astronomers @Summer_Ash & @emilylurice.
The Universe
4 yrs, 3 mos on Twitter
3,674 35.9%
91.profile imageDJ Dr JJ Eldridge

NZ Astrophysicist studying exploding binary stars. Lecturer, Speaker, Sci-fi addict, feminist, trans non-binary femme, prefers them/they pro-nouns.
The Lives and Death-Throes of Mas...
Auckland, New Zealand
4 yrs, 10 mos on Twitter
2,708 35.9%
92.profile imageRisa Wechsler

astrophysicist. cosmologist. maker of universes and various kinds of trouble. professor of physics @ stanford
San Francisco
5 yrs, 6 mos on Twitter
3,084 35.6%
93.profile imageProfe Jorge Moreno

NSF-Funded Theoretical Astrophysicist | Visiting Scholar at Harvard | AAS CSMA Chair | Assistant Professor at Pomona College | de-Indigenized “Latinx” | QPOC
Claremont, CA
3 yrs, 7 mos on Twitter
1,558 35.6%
94.profile imageAlan Duffy

A/Professor in Astrophysics at @Swinburne and Lead Scientist of @RiAus Instagram.com/dr.a.duffy
5 yrs, 8 mos on Twitter
17,721 35.3%
95.profile imageJennifer L. Hoffman ✨

Astronomer, associate professor, alto, auntie, ailurophile. University of Denver
Stellar Polimetry
Denver, CO
4 yrs, 2 mos on Twitter
2,178 35.3%
96.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, 11 mos on Twitter
2,148 35.3%
97.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
10 yrs, 0 mos on Twitter
5,587,431 35.0%
98.profile image@RealScientists - Alie

Real science from real scientists, writers, communicators, artists & clinicians. This week: Brain Awareness Week, Tues-Thurs: @alie_astrocyte!
5 yrs, 1 mo on Twitter
63,626 35.0%
99.profile imageRobert Simpson

Googler, astronomer, TED Fellow. Views are my own.
10 yrs, 10 mos on Twitter
32,725 35.0%
100.profile imageShit Academics Say

A social experiment | @prof_nch
4 yrs, 5 mos on Twitter
275,890 34.7%
101.profile imageRoyal Astronomical Society

The RAS is a learned society representing astronomers and geophysicists in the UK & worldwide. Tweets by @RobertMMassey, @MorganDJHollis, & @DrHelenKlus.
Burlington House, London
7 yrs, 11 mos on Twitter
25,121 34.7%
102.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, 10 mos on Twitter
12,693 34.7%
103.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
7 yrs, 2 mos on Twitter
3,878 34.7%
104.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, 9 mos on Twitter
1,390,105 34.3%
105.profile imageDavid Grinspoon

Astrobiologist, Author, Musician. New book CHASING NEW HORIZONS: Inside the Epic First Mission to Pluto, on sale May 1, 2018!
Chasing New Horizons
Earth in Human Hands
Towards Understanding the Climate...
Biosphere One
6 yrs, 5 mos on Twitter
25,534 34.3%
106.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, 5 mos on Twitter
10,131 34.3%
107.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, 10 mos on Twitter
7,703 34.3%
108.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, 8 mos on Twitter
4,663 34.3%
109.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
9 yrs, 1 mo on Twitter
472,866 34.0%
110.profile imageMika McKinnon

Field geophysicist, disaster researcher, scifi science consultant, science writer, public speaker, irrepressible educator.
West Coast
8 yrs, 9 mos on Twitter
21,722 34.0%
111.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
8 yrs, 0 mos on Twitter
4,622 34.0%
112.profile imageJosh Peek

Personal account; statements do not reflect the position of any employer!
9 yrs, 1 mo on Twitter
1,111 34.0%
113.profile imageCERN

#CERN, the European Organization for Nuclear Research, is the world's largest particle physics lab, home of the #LHC. French: @CERN_FR
9 yrs, 8 mos on Twitter
2,574,685 33.7%
114.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, 6 mos on Twitter
58,843 33.7%
115.profile imageHaley Gomez

I'm an Astrophysicist, love books, films astronomy, shoes and dresses.
8 yrs, 3 mos on Twitter
2,781 33.7%
116.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, 5 mos on Twitter
5,697 33.4%
117.profile imageAlberto Conti

Astrophysicist & Innovation Manager google.com/sky/ - hubblesite.org/ibooks Tweets are my own, at least in this multiverse.
9 yrs, 8 mos on Twitter
3,049 33.4%
118.profile imageGeert Barentsen

NASA Astronomer in Silicon Valley • Kepler/K2 Mission GO Director • Thinks Bayesian • Likes Burritos • Does not own a cat. 🚀🌯😾 #KeplerMission #K2Mission
Mountain View, CA
8 yrs, 9 mos on Twitter
2,617 33.4%
119.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, 11 mos on Twitter
1,677,970 33.1%
120.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, 9 mos on Twitter
19,009 33.1%
121.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, 6 mos on Twitter
5,558 33.1%
122.profile imageElisabeth Newton

NSF postdoc and stellar physicist @MIT with a passion for education and #scicomm. Also a climber, baker, crafter & @astrobites co-founder.
Cambridge, MA.
6 yrs, 9 mos on Twitter
1,976 33.1%
123.profile imageNYT Science

Science, Medicine, Environment, Space and Cosmos. Sync your calendar with the solar system: nyti.ms/2ECMtej
New York, NY
10 yrs, 11 mos on Twitter
1,158,215 32.8%
124.profile imageStuart

Maker of things. Co-author of a book cosmos-book.github.io with @chrisenorth. Part time at @ODILeeds ✨🛰📕📊
10 yrs, 9 mos on Twitter
8,349 32.8%
125.profile imagePeter Coles #FBPE 🌈 🇪🇺 🇮🇪

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
8 yrs, 4 mos on Twitter
5,305 32.8%
126.profile imageIan O'Neill

Recovering British solar physicist, @AstroSocietyPac Mercury editor, sci writer. The Isoma constellation (@EVEOnline) is my 2nd home. Assembled from star junk ✨
Woodland Hills, Los Angeles
9 yrs, 7 mos on Twitter
36,474 32.5%
127.profile imageRobert McNees

Professor, physicist, science communicator. Studying black holes, quantum gravity, cosmology. Tar Heel. RT = spooky action at a distance. Opinions are all mine.
Chicago, z=0
9 yrs, 8 mos on Twitter
9,941 32.5%
128.profile imageWoman Astro

Promoting astronomy, encouraging women/girls interested in science. WomanAstro.com, etsy.com/shop/WomanAstro
New Mexico, USA
8 yrs, 3 mos on Twitter
4,782 32.5%
129.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, 7 mos on Twitter
25,544 32.2%
130.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, 11 mos on Twitter
10,936 32.2%
131.profile imageAnna Watts

Associate Professor of Astrophysics @ Univ. of Amsterdam. Neutron stars (explosions, dense matter), X-ray astronomy. Mom, Migrant. Particles in stars blah blah.
3 yrs, 9 mos on Twitter
2,502 32.2%
132.profile imageDan F-M

I write code for good & astrophysics.
6 yrs, 7 mos on Twitter
2,186 32.2%
133.profile imageBlackPhysicists

Arlington, VA and Worldwide
8 yrs, 9 mos on Twitter
17,588 31.9%
134.profile image.Astronomy

Conference series about what happens when hackers, astronomers and the web all get together.
Cambridge, MA, USA
9 yrs, 9 mos on Twitter
3,920 31.9%
135.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.
The shores of the crab infested impact crater
8 yrs, 6 mos on Twitter
2,485 31.9%
136.profile imageScientific American

Awesome discoveries. Expert insights. Science that shapes the world.
New York City, NY, USA
9 yrs, 10 mos on Twitter
3,567,024 31.6%
137.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, 4 mos on Twitter
18,584 31.6%
138.profile imageSophia Nasr

Astroparticle physicist working on dark matter. PhD student @UCIrvine. On a mission to captivate the world with physics, one particle at a time.
🐶|Los Angeles〉+ 🐹|Irvine〉
7 yrs, 10 mos on Twitter
14,220 31.6%
139.profile imageProf. Lisa Harvey-Smith

Astrophysicist, Professor, Ultrarunner, TV Presenter #StargazingABC @AstroCourses, Gooner, Vego, Lesopotamian. lisaharveysmith.com
6 yrs, 4 mos on Twitter
10,447 31.6%
140.profile imageEmily Levesque

The real exciting sound in science is not, 'Eureka!' It's, 'Wow, that's weird.'
Understanding Stellar Evolution
Astrophysics of Red Supergiants
Seattle, WA
8 yrs, 0 mos on Twitter
1,767 31.6%
141.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, 10 mos on Twitter
1,490 31.6%
142.profile imageMichelle Collins

Astrophysics Lecturer @surreyastro, working on Local Group galaxies. Soft spot for Andromeda. Keen runner therunningastronomer.com
Guildford, England
8 yrs, 9 mos on Twitter
1,309 31.6%
143.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, 10 mos on Twitter
1,123,625 31.3%
144.profile imageScience Friday

Brain fun for curious people. Hosted by @iraflatow.
New York, New York
9 yrs, 4 mos on Twitter
781,243 31.3%
145.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, 3 mos on Twitter
240,275 31.3%
146.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, 4 mos on Twitter
215,365 31.3%
147.profile imageJohanna

Astronomer, runner, educator, feminist, vegan, baker, #Nats fan
Pasadena, CA
4 yrs, 2 mos on Twitter
1,701 31.3%
148.profile imageAdam Burgasser

astrophysicist, professor, and preferably in the water.
on a plane, or San Diego
7 yrs, 6 mos on Twitter
1,543 31.3%
149.profile imageRuth Angus

Researching exoplanets & rebugging in python.
Oxford, UK
6 yrs, 10 mos on Twitter
1,407 31.3%
150.profile imageSamantha 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, 7 mos on Twitter
998,071 31.0%
151.profile imageBobak Ferdowsi

Explorer of space. Engineer on NISAR Earth Science & Europa Clipper. Mars Curiosity, Cassini Saturn. Cat dad. Opinioned. Instagram: @tweetsoutloud
Pasadena, CA
8 yrs, 7 mos on Twitter
117,019 31.0%
152.profile imageJason Major

Space. Planets. NASA. Science. Rocketry. Astronomy. Democracy. Nature. Birds. Coffee. Occasionally funny. Sometimes I make pictures.
Warwick, RI
8 yrs, 2 mos on Twitter
24,211 31.0%
153.profile imageHannah Wakeford

Giacconi Fellow @STScI/@AURADC , @exo_cast podcaster & @BSACDIVER | Previously @NASAGoddard Fellow & @UniofExeter PhD | Expressed opinions are mine
6 yrs, 5 mos on Twitter
2,030 31.0%
154.profile imageWIRED Science

Bringing the radiothermally generated heat. The team: @KatieMPalmer, @JetJocko, @rtg0nzalez, @MeganMolteni, and @MrMattSimon.
San Francisco, California
10 yrs, 5 mos on Twitter
2,098,583 30.7%
155.profile imageLIGO

Official Twitter of the LIGO Scientific Collaboration. We detect gravitational waves! YouTube: youtube.com/ligovirgo
Livingston, LA and Hanford, WA
9 yrs, 9 mos on Twitter
73,719 30.7%
156.profile imageAstro Union

Founded in 1919, the International Astronomical Union (IAU) promotes and safeguards the science of astronomy through international cooperation.
3 yrs, 9 mos on Twitter
5,276 30.7%
157.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, 7 mos on Twitter
5,092 30.7%
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
9 yrs, 1 mo on Twitter
4,574 30.7%
159.profile imageRogue NASA

The unofficial "Resistance" team of NASA. Not an official NASA account. Not managed by gov't employees. Come for the facts, stay for the snark.
Washington, DC
1 yr, 1 mo on Twitter
887,712 30.4%
160.profile imageCorey S. Powell

Science writer on @BillNyeSaves. Contributing editor at @aeonmag, @discovermag, and @AmSciMag. Science-curious.
Brooklyn, NY
9 yrs, 0 mos on Twitter
72,509 30.4%
161.profile imageJennifer Ouellette

Jen-Luc Piquant is the faux-French avatar of science writer Jennifer Ouellette. Past Gizmodo science editor. Ex-evangelical. Married to @seanmcarroll.
Los Angeles, CA
7 yrs, 11 mos on Twitter
34,076 30.4%
162.profile imageUnited SpaceShip Shanahan

Astrophysicist, #scicomm writer, & Twitch streamer. EMT/FF in training. Cofounded @AAS_WGAD, creator of #disabledandSTEM. Loves video game #accessibility.
Stolen Manahoac Land
6 yrs, 9 mos on Twitter
4,663 30.4%
163.profile imageDavid Kipping

Exoplanets & Exomoons, Columbia University, Cool Worlds Lab
The Transits of Extrasolar Planet...
Manhattan, NY
9 yrs, 0 mos on Twitter
2,948 30.4%
164.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)
2,291 30.4%
165.profile imageBecky Smethurst

Astrophysicist researching galaxies & black holes | I present SCIENCE videos for @sixtysymbols | @galaxyzoo | @dotastronomy | #scicomm | Enthusiasm reigns here!
Nottingham, UK
8 yrs, 11 mos on Twitter
1,947 30.4%
166.profile imageGrant Tremblay

Astrophysicist at the Harvard-Smithsonian Center for Astrophysics. Previously an Einstein Fellow @Yale, Fellow @ESO, and SDAS regular @STScI. Views my own.
Cambridge, MA
9 yrs, 0 mos on Twitter
1,353 30.4%
167.profile imageScott Kelly

Houston, TX
8 yrs, 6 mos on Twitter
5,493,710 30.1%
168.profile imageNOT ALT WORLD

The #Resistance team against #AltFacts #FauxNews #FauxScience Formerly: Unofficial National Park Service #Science #Climate #Facts Run by non-gov individuals
1 yr, 9 mos on Twitter until last tweet (2017-Feb-07)
1,212,678 30.1%
169.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, 5 mos on Twitter
12,486 30.1%
170.profile imageNancy Atkinson

Science journalist, @universetoday & @Seeker. Author of the book "Incredible Stories From Space"
9 yrs, 8 mos on Twitter
11,578 30.1%
171.profile imageHUBBLE

The official feed of ESA/Hubble. The Hubble Space Telescope is the space-based observatory which has revolutionised modern astronomy.
7 yrs, 10 mos on Twitter
525,820 29.8%
172.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, 11 mos on Twitter
97,060 29.8%
173.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, 10 mos on Twitter
36,747 29.8%
174.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, 8 mos on Twitter
2,206 29.8%
175.profile imageSPACE.com

News coverage and conversation about space science, astronomy and exploration. Part of @Purch
9 yrs, 8 mos on Twitter
755,944 29.5%
176.profile imageJonathan Amos

BBC Science Correspondent
Cambridge, UK
8 yrs, 2 mos on Twitter
40,960 29.5%
177.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, 9 mos on Twitter
31,004 29.5%
178.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, 11 mos on Twitter
3,462 29.5%
179.profile imageEmily Baldwin

Space Science Editor at EJR-Quartz for ESA, based at ESTEC. Tweets about space, running, coffee. Opinions own.
Leiden, Netherlands
9 yrs, 0 mos on Twitter
4,850 29.2%
180.profile imageTrueSciPhi

A window on science and philosophy communities on Twitter and YouTube, by Kelly Truelove. See site for more.
Austin, Texas
2 yrs, 9 mos on Twitter
4,132 29.2%
181.profile imageSloan Digital Sky Surveys

Tweeting about mapping the Universe @APOGEEsurvey @eBOSSurvey @MaNGASurvey
Apache Point Observatory.
5 yrs, 1 mo on Twitter
3,176 29.2%
182.profile imageSpirit and Oppy

Roving the Red Planet on six wheels since Jan 2004. The official mission Twitter of the Spirit and Opportunity rovers.
Mars: Gusev Crater & Meridiani
9 yrs, 8 mos on Twitter
434,428 28.9%
183.profile imageKatey Alatalo

Ph.D. astronomer at STScI, currently housed at Carnegie. Space is amazing! My views are my own.
Pasadena, CA
9 yrs, 9 mos on Twitter
3,673 28.9%
184.profile imageJames Davenport

Astronomy PhD, Postdoctoral Fellow, blogger, casual data analyst, Seattleite. All opinions are my own.
5 yrs, 10 mos on Twitter
1,919 28.9%
185.profile imagePresident Obama

This is an archive of an Obama Administration account maintained by the National Archives and Records Administration (NARA).
Washington, D.C.
3 yrs, 7 mos on Twitter until last tweet (2017-Jan-20)
15,172,573 28.6%
186.profile imageJim Al-Khalili

Physicist, author, broadcaster, humanist, Jedi Master-- The Universe doesn't have a purpose, free will is an illusion, quantum physics is beautiful.
University of Surrey
8 yrs, 1 mo on Twitter
113,609 28.6%
187.profile imageAlan Boyle

Aerospace and science editor @GeekWire. Longtime blogger @CosmicLog. Author of "The Case for Pluto." Links/RTs ≠ endorsements
10 yrs, 0 mos on Twitter
32,775 28.6%
188.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, 3 mos on Twitter
27,706 28.6%
189.profile imageDNLee

#NewProf, Mammalogist, Diversity & Access to STEM, Unapologetically Intersectional, Mama Panyabuku, TED Fellow, NatGeo Emerging Explorer
Midwest, US; Tanzania, Africa
7 yrs, 7 mos on Twitter
26,307 28.6%
190.profile imageESA Gaia

Science with 1 billion objects in three dimensions
9 yrs, 0 mos on Twitter
14,887 28.6%
191.profile imageJackie Faherty

Astrophysicist at @AMNH. Enthusiast for bringing the cosmos to the public @backyardworlds #womeninscience #BDNYC #manhattanhenge calculator. #scicomm
8 yrs, 11 mos on Twitter
3,431 28.6%
192.profile imageJames Bullock

Professor and Chair, Department of Physics & Astronomy, UC Irvine. Cosmologist, Anteater, and Buckeye.
California, USA
8 yrs, 7 mos on Twitter
2,882 28.6%
193.profile imagePHD Comics

Life (or the lack thereof) in Academia. Check out my new book WE HAVE NO IDEA
9 yrs, 7 mos on Twitter
187,236 28.3%
194.profile imageMatt Taylor

I work at ESA on the Rosetta mission. 501st Dutch Garrison TK67676 EIB
5 yrs, 5 mos on Twitter
33,788 28.3%
195.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
How to Live in Space
Fabulous Figures and Cool Calcula...
Astonishing Atoms and Matter Mayh...
9 yrs, 3 mos on Twitter
5,911 28.3%
196.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
6 yrs, 1 mo on Twitter
1,781 28.3%
197.profile imageInstitute of Physics

The Institute of Physics is a leading scientific membership society working to advance physics for the benefit of all.
8 yrs, 10 mos on Twitter
163,860 28.0%
198.profile imageJohn Grunsfeld

Former lead for Science at NASA (Associate Administrator) Astronaut STS-67,81,103,109,125 Hubble Hugger, Space and Earth explorer
6 yrs, 1 mo on Twitter
33,213 28.0%
199.profile imageJo Dunkley

Professor of Physics and Astrophysics at Princeton
Our Universe
Princeton, NJ
6 yrs, 5 mos on Twitter
1,842 28.0%
200.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, 3 mos on Twitter
1,737 28.0%
201.profile imageJonathan Pritchard

Imperial astrophysicist and bewildered vagabond. SKA enthusiast. @ERC_research funded (opinions mine, not employer's)
Richmond, London
7 yrs, 2 mos on Twitter
1,409 28.0%
202.profile imageErik Tollerud

Astrophysicist, Python coder, and general lover of nature in all its forms.
Baltimore, MD
8 yrs, 9 mos on Twitter
1,091 28.0%
203.profile imageGuardian Science

Science, health and environment news from the @Guardian. Plus, independent comment and analysis from our network of expert science bloggers
9 yrs, 0 mos on Twitter
1,080,531 27.7%
204.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, 11 mos on Twitter
177,501 27.7%
205.profile imageAmy Mainzer

Jet Propulsion Laboratory
5 yrs, 0 mos on Twitter
26,249 27.7%
206.profile imageMeg Rosenburg

planetary science PhD | #scicomm & #histSTM | freelancer, filmmaker, podcaster | megrosenburg.com | And what you do, do it unfeignedly.
Somerville, MA
5 yrs, 3 mos on Twitter
5,164 27.7%
207.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, 3 mos on Twitter
4,680 27.7%
208.profile imageEmily Petroff

Astronomer. Reader. Random number generator. I study things that go bang.
The Netherlands
4 yrs, 8 mos on Twitter
3,661 27.7%
209.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, 11 mos on Twitter
2,137 27.7%
210.profile imageNational Science Fdn

Where Discoveries Begin. Social media policy: bit.ly/smpnsf
Alexandria, VA
9 yrs, 6 mos on Twitter
1,089,579 27.4%
211.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, 7 mos on Twitter
72,027 27.4%
212.profile imagegalaxyzoo

It's Galaxy Zoo!
9 yrs, 2 mos on Twitter
13,692 27.4%
213.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 🛰️https://t.co/jHO1Tw8JYW
10 yrs, 0 mos on Twitter
7,706 27.4%
214.profile imageAndy Rivkin

Planetary astronomer on #TeamAsteroid; Gedankenband member and guitarist; Persistently Obstreperous.
#USAstronomyGoodwillAmbassador ⊗
9 yrs, 9 mos on Twitter
3,680 27.4%
215.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, 11 mos on Twitter
1,997 27.4%
216.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, 9 mos on Twitter
1,631 27.4%
217.profile imageHillary Clinton

Wife, mom, grandma, women+kids advocate, FLOTUS, Senator, SecState, hair icon, pantsuit aficionado, 2016 presidential candidate.
New York, NY
4 yrs, 11 mos on Twitter
22,024,835 27.1%
218.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
11 yrs, 2 mos on Twitter
3,836 27.1%
219.profile imageAndrew Pontzen

I do cosmology. Employed by UCL, funded by the Royal Society. Tweeting in a personal capacity: it’s no-one else’s fault when I talk nonsense.
7 yrs, 7 mos on Twitter
3,052 27.1%
220.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, 9 mos on Twitter
1,912 27.1%
221.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, 10 mos on Twitter
1,141 27.1%
222.profile imageJames Tuttle Keane

JCPA Postdoc at Caltech. Studying planetary gravity, rotation, and tides. Occasional artist. Owner of Cheesecake and Poppy, the dogs.
Pasadena, CA
3 yrs, 11 mos on Twitter
4,058 26.7%
223.profile imageRobert Massey

Dad, Deputy 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, 7 mos on Twitter
2,616 26.7%
224.profile imageNASA Voyager

The official account for NASA’s twin Voyager 1 & 2 spacecraft, the longest operating spacecraft in deep space. 🛰 Mission team headquartered at @NASAJPL
Interstellar space
7 yrs, 6 mos on Twitter
489,364 26.4%
225.profile imageHubbleTelescope

News from the Hubble Space Telescope operated by @stsci
9 yrs, 8 mos on Twitter
124,974 26.4%
226.profile imageHistory of Astronomy

Multidisciplinary & multicultural history of astronomy #histastro by @VoulaSaridakis, Ph.D. | Curator, Museum of Science and Industry, Chicago @msichicago.
All tweets/views/opinions mine
3 yrs, 0 mos on Twitter
18,604 26.4%
227.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, 5 mos on Twitter
14,177 26.4%
228.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, 5 mos on Twitter
6,389 26.4%
229.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, 7 mos on Twitter
4,233 26.4%
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
9 yrs, 0 mos on Twitter
4,169 26.4%
231.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, 7 mos on Twitter
3,615 26.4%
232.profile imageRadio Astrology

Opening new windows in the prediction spectrum. Astrology at long wavelengths.
In the stars (and the ISM)
6 yrs, 4 mos on Twitter
3,304 26.4%
233.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, 3 mos on Twitter
2,523 26.4%
234.profile imageSAO/NASA ADS

7 yrs, 2 mos on Twitter
1,977 26.4%
235.profile imageEric Mamajek

astronomer, dad, reader of stellar tea leaves, searcher of extrasolar needles in haystacks. My tweets are my own.
Pasadena, CA
7 yrs, 1 mo on Twitter
1,645 26.4%
236.profile imageCaitlin Casey

Astronomer and Assistant Professor at the University of Texas at Austin.
Austin, TX
4 yrs, 0 mos on Twitter
1,160 26.4%
237.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, 4 mos on Twitter
202,312 26.1%
238.profile imageWill Gater

Astronomer, journalist & space geek willgater.com | willgaterastrophotography.com | instagram.com/willgater
9 yrs, 9 mos on Twitter
7,805 26.1%
239.profile imageLSST Astronomy

The widest, fastest, deepest eye of the new digital age.
Cerro Pachon, Chile
9 yrs, 7 mos on Twitter
3,710 26.1%
240.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, 9 mos on Twitter
2,999 26.1%
241.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.
7 yrs, 2 mos on Twitter
48,655 25.8%
242.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, 5 mos on Twitter
5,259 25.8%
243.profile imageBenjamin Pope

Astronomer, Bayesian, foodie - he/him
Manhattan, NY
5 yrs, 2 mos on Twitter
2,340 25.8%
244.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, 9 mos on Twitter
48,810 25.5%
245.profile imageKimberly EnnicoSmith

Scientist fueled by tea. Inspired by many. At every opportunity, learn everything you can. You never know when you might use what you learn. Dare mighty things.
Mountain View, CA
10 yrs, 0 mos on Twitter
3,723 25.5%
246.profile imageJC Holbrook

Astrophysicist, Filmmaker, Cultural Astronomer. Hubble's Diverse Universe on Amazon.com BlackSunMovie.com videos.astroanthro.com/Science-Tourist
Kaapstad, ZA
8 yrs, 7 mos on Twitter
2,325 25.5%
247.profile imageDerek Fox

Research astronomer and faculty member at Penn State University. This is a personal Twitter account.
9 yrs, 0 mos on Twitter
2,212 25.5%
248.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, 9 mos on Twitter
2,115,798 25.2%
249.profile imageDr. Brian May

Rocket Ship Builder 🚀🚀🚀🚀🚀
5 yrs, 5 mos on Twitter
697,629 25.2%
250.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, 3 mos on Twitter
183,215 25.2%
251.profile imageAriel Waldman

NASA advisor + author of amzn.to/1MFUEVC + founder of Spacehack.org + global director @ScienceHackDay + youtuber youtube.com/arielwaldman
San Francisco
11 yrs, 0 mos on Twitter
31,156 25.2%
252.profile imageSquareKilometreArray

The SKA will be the world's largest radio telescope, located in Africa & Australia. Tweets from the SKA Global Headquarters @jodrellbank.
Jodrell Bank (UK)
7 yrs, 5 mos on Twitter
15,577 25.2%
253.profile imageBrian Keating

Physics Professor @UCSanDiego | @SimonsObs Director | TEDx: bit.ly/2AH3ph7 Book: “Losing the Nobel Prize” from @WWNorton: https://t.co/Rif8WJm0Qr
San Diego, CA
7 yrs, 5 mos on Twitter
6,486 25.2%
254.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
8 yrs, 3 mos on Twitter
2,731 25.2%
255.profile imageAstropy

This is the official twitter account for the Astropy project.
6 yrs, 7 mos on Twitter
2,269 25.2%
256.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, 7 mos on Twitter
1,603 25.2%
257.profile imageAdrian Price-Whelan

astrophysics postdoc @ Princeton, galaxy dynamics github.com/adrn facebook.com/operatormusicb…
Princeton, NJ
6 yrs, 9 mos on Twitter
1,385 25.2%
258.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, 4 mos on Twitter
871 25.2%
259.profile imageJohn O'Meara

Father, Astronomer, teacher, science policy nerd, VT craft beer fan. Cosmic Origins Science Lead for #LUVOIR Member AAAC, Vice Chair COPAG EC. Tweets are my own
Essex Junction, Vermont
8 yrs, 6 mos on Twitter
1,036 24.9%
260.profile imageStephen Fry

How can I tell you what I think until I’ve heard what I’ve said? 🏳️‍🌈 (Never Read DMs I’m afraid)
Los Angeles, CA/ London UK
9 yrs, 7 mos on Twitter
13,109,339 24.6%
261.profile imageNASA Kennedy / KSC

Official Tweets from NASA's Kennedy Space Center
Florida, USA
9 yrs, 5 mos on Twitter
1,416,631 24.6%
262.profile imageBBC Science News

News, features and analysis from the BBC Science & Environment news desk.
London, England
11 yrs, 2 mos on Twitter
1,387,300 24.6%
263.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, 11 mos on Twitter
64,947 24.6%
264.profile imageMiriam Kramer

Deputy science editor reporting on space for @Mashable. It's not aliens. It's never aliens. [email protected] DMs open and also a mess.
Now: NYC. Before: Tennessee.
7 yrs, 10 mos on Twitter
14,154 24.6%
265.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, 7 mos on Twitter
9,156 24.6%
266.profile imageShannon Stirone

Freelance writer. Art Historian. I like planets. Bylines @PopSci @DiscoverMag @Wired @TheAtlantic @NewRepublic, & others. Opinions are mine. 📡
3 yrs, 7 mos on Twitter
7,881 24.6%
267.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, 4 mos on Twitter
4,042 24.6%
268.profile imageEli Bressert

Love big ideas and putting them into action by connecting the impossible. Heading data science at Convoy. SU mentor & author of the SciPy & Numpy book.
SciPy and NumPy
Seattle, WA
9 yrs, 4 mos on Twitter
2,506 24.6%
269.profile imageNate Silver

Editor-in-Chief, @FiveThirtyEight. Author, The Signal and the Noise (amzn.to/QdyFYV). Sports/politics/food geek.
New York
9 yrs, 6 mos on Twitter
3,030,172 24.3%
270.profile imageMike Massimino

Former @NASA astronaut, Professor at Columbia @CUSEAS, Sr. Advisor for Space Programs @IntrepidMuseum, Author of #Spaceman
New York, NY
8 yrs, 11 mos on Twitter
1,371,669 24.3%
271.profile imageEllen Stofan

Planetary geologist, STEM advocate, former Chief Scientist of NASA
Exploring Venus as a Terrestrial ...
Washington, DC
6 yrs, 1 mo on Twitter
8,917 24.3%
272.profile imageNola Taylor Redd

Freelance #science writer with a focus in #space and #astronomy.
Atlanta, GA
2 yrs, 9 mos on Twitter
1,826 24.3%
273.profile imageMatthew Kenworthy

Associate Professor of Astronomy at Leiden Observatory - looking for exoplanets and giant rings, and develops instrumentation to find them. Opinions are my own.
Leiden, The Netherlands
7 yrs, 4 mos on Twitter
1,034 24.3%
274.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
10 yrs, 1 mo on Twitter
1,442,531 24.0%
275.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
9 yrs, 0 mos on Twitter
1,339,531 24.0%
276.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, 10 mos on Twitter
243,848 24.0%
277.profile imageKeri Bean

Mars rover driver in training for @MarsRovers. Flying TIE Fighter @NASA_Dawn. R2-D2's mom. @SunriderBase @RebelLegion Rey. @JeffAMcGee's wife. Hufflepuff.
Pasadena, CA
6 yrs, 10 mos on Twitter
7,470 24.0%
278.profile imageHenna

Founder at Universe Simplified (@UnivSimplified), Proponent of Disrupt Education and Maker Spaces, Astronomy Enthusiast, Backpacker
8 yrs, 8 mos on Twitter
7,166 24.0%
279.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
3 yrs, 1 mo on Twitter
4,671 24.0%
280.profile imageLiz B ☆

Multiwavelength X-ray/Optical Astronomer at @ESO. Bleeding heart liberal & intersectional feminist. All views my own #WomenInSTEM #ActualLivingScientist
Santiago, Chile
6 yrs, 0 mos on Twitter
1,165 24.0%
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
10 yrs, 1 mo on Twitter
955 24.0%
282.profile imageNASA History Office

This is the NASA History Office's official Twitter account. We're happy that you share our passion for aerospace history.
Washington, DC
7 yrs, 9 mos on Twitter
841,325 23.7%
283.profile imageLisa Grossman

Astronomy reporter at Science News, lifelong astronomy nerd. Ideas my own. She/her/hers
Cambridge, MA
9 yrs, 0 mos on Twitter
6,285 23.7%
284.profile imageGiant Magellan

The first “Extremely Large Telescope” seeking to unlock the mysteries of the universe.
Las Campanas, Chile
6 yrs, 9 mos on Twitter
3,993 23.7%
285.profile imageDr Roberto Trotta

Astrophysicist @imperialcollege | #scicommer | author of edge-of-the-sky.com | @CLCCDirector | statistical consultant | runner | #FBPE | Opinions my own.
The Edge of the Sky
4 yrs, 1 mo on Twitter
2,046 23.7%
286.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, 4 mos on Twitter
1,964 23.7%
287.profile imageCaroline Morley

Cloud Ninja, Sagan Fellow at Harvard, modeler of substellar atmospheres
Cambridge, MA
5 yrs, 5 mos on Twitter
1,328 23.7%
288.profile imageCaryl Gronwall

Astronomer at Penn State University
State College, PA
7 yrs, 0 mos on Twitter
1,030 23.7%
289.profile imageChandra Observatory

Chandra's ongoing mission is to study the X-ray Universe. Operated for NASA by Smithsonian Astrophysical Observatory. Legal: s.si.edu/legal
In orbit
10 yrs, 1 mo on Twitter
157,783 23.4%
290.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, 11 mos on Twitter
98,910 23.4%
291.profile imageSci Curious

Staff writer @SNStudents, writer at @ScienceNews, podcaster @sci4thepeople. Opinions my own. In my free time, I run long distances.
Washington, DC
8 yrs, 10 mos on Twitter
59,518 23.4%
292.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, 8 mos on Twitter
51,586 23.4%
293.profile imageSTFC

Science and Technology Facilities Council: Pioneering science for a better future. See @STFC_B2B for business news.
8 yrs, 5 mos on Twitter
16,494 23.4%
294.profile imageRay Jayawardhana

Astronomer, Explorer, Writer, Speaker. Author of "Strange New Worlds" and "Neutrino Hunters"
Neutrino Hunters
Strange New Worlds
Young Stars Near Earth
7 yrs, 0 mos on Twitter
1,623 23.4%
295.profile imageNational Geographic

Since its inception nearly 130 years ago, the core purpose of National Geographic has been to further the knowledge and awareness of our world.
9 yrs, 3 mos on Twitter
22,271,824 23.1%
296.profile imageStephen Colbert

9 yrs, 5 mos on Twitter
17,830,174 23.1%
297.profile imageSpaceflight Now

The best source for space news
Cape Canaveral, Florida
9 yrs, 4 mos on Twitter
429,125 23.1%
298.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, 6 mos on Twitter
30,168 23.1%
299.profile imageJanna Levin

Astrophysicist. Author.
Black Hole Blues and Other Songs ...
A Madman Dreams of Turing Machine...
How the Universe Got Its Spots
New York City
5 yrs, 0 mos on Twitter
20,901 23.1%
300.profile imageChristine Corbett M.

Cyber Defense Research & Europa Clipper Engineering @NASAJPL, Astrophysics @Caltech. Past: @SpaceX, @MIT, @SignalApp, @SPTelescope. Science @astro_corbett
Pasadena, CA
7 yrs, 10 mos on Twitter
11,381 23.1%