Astronomers' Favorite Twitter Feeds

Updated: 2017-Apr-26 18:02 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, 0 mos on Twitter
131,748 71.4%
2.profile imagePhil Plait

SCIENCE! I love this stuff. My blog RSS feed: blastr.com/tags/bad-astro…
Bad Astronomy
10 yrs, 0 mos on Twitter
577,815 70.7%
3.profile imageNASA

Explore the universe and discover our home planet with @NASA. We usually post in EDT (UTC-4).
9 yrs, 4 mos on Twitter
23,160,568 68.1%
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
8 yrs, 11 mos on Twitter
125,766 68.1%
5.profile imageNeil deGrasse Tyson

Welcome to the Universe
Astrophysics for People in a Hurr...
Welcome to the Universe
New York City
8 yrs, 2 mos on Twitter
7,246,675 60.5%
6.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
8 yrs, 9 mos on Twitter
3,666,340 57.6%
7.profile imagechrislintott

Astronomer, zookeeper and journalist, based at University of Oxford.
The Cosmic Tourist
Exploring the Mysteries of the Un...
8 yrs, 7 mos on Twitter
25,933 56.5%
8.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
9 yrs, 7 mos on Twitter
5,372 55.1%
9.profile imageMaria Womack

Astrophysicist & planetary scientist @USouthFlorida physics professor. Mostly comets, exoplanets, stars, #astropolicy and #scipolicy Contains no pseudoscience.
Tampa, Florida
7 yrs, 8 mos on Twitter
3,660 54.3%
10.profile imageBarack Obama

Dad, husband, President, citizen.
Washington, DC
10 yrs, 1 mo on Twitter
87,176,156 53.3%
11.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, 0 mos on Twitter
25,552 53.3%
12.profile imageBrian Cox

I tweet about science and, on occasion, politics because I am a citizen (of the UK, Europe and the world). I am uncertain about many things and not always right
The Earth, with everyone else
8 yrs, 4 mos on Twitter
2,550,759 52.9%
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, 0 mos on Twitter
4,161 51.1%
14.profile imageAstroBetter

Blog and Wiki for professional astronomers.
8 yrs, 0 mos on Twitter
3,992 51.1%
15.profile imageSpaceX

Official Twitter for SpaceX, the future of space travel. SpaceX designs, manufactures and launches the world’s most advanced rockets and spacecraft.
Hawthorne, CA
8 yrs, 0 mos on Twitter
3,310,727 50.7%
16.profile imageLucianne Walkowicz

astrophysicist @AdlerPlanet. artist. guitarist in @ditchclub. transient bioelectrical phenomenon hurtling through space. (banner: "Afronauts" by @tobogganeer) Ⓥ
Chicago, IL, USA, Earth
6 yrs, 2 mos on Twitter
9,076 50.7%
17.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…
9 yrs, 8 mos on Twitter
1,190,523 50.0%
18.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, 0 mos on Twitter
49,311 49.6%
19.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, 2 mos on Twitter
32,506 49.6%
20.profile imageESA

European Space Agency, keeping you posted on European space activities.
8 yrs, 2 mos on Twitter
714,727 49.3%
21.profile imageKaren Masters 🌸🌸🌸

Extragalactic astrophysicist @UoPCosmology. @GalaxyZoo @SDSSurveys. Touch a galaxy @TactileUniverse. Vice-President of @popAstro. Mostly tweeting astronomy.
Portsmouth, UK
8 yrs, 2 mos on Twitter
5,353 48.9%
22.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, 2 mos on Twitter
1,725,256 48.6%
23.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, 3 mos on Twitter
14,661 48.6%
24.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, 1 mo on Twitter
8,264 48.6%
25.profile imageJulianne Dalcanton

Astrophysicist at the University of Washington. Principal Investigator of the Panchromatic Hubble Andromeda Treasury (PHAT).
5 yrs, 3 mos on Twitter
4,175 48.6%
26.profile imageFraser Cain

Publisher of universetoday.com, co-host of astronomycast.com. Named after Asteroid 158092.
Courtenay, British Columbia
10 yrs, 1 mo on Twitter
36,063 47.8%
27.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, 3 mos on Twitter
5,640 47.8%
28.profile imageAlyssa Goodman

Astronomy Professor at Harvard, figuring out how the Universe makes stars. Trying to make Astronomy more Seamless and STEM education more fun.
8 yrs, 3 mos on Twitter
3,210 47.1%
29.profile imageNASA Kepler and K2

Trailing Earth around the Sun
8 yrs, 4 mos on Twitter
599,506 46.7%
30.profile imageSean Carroll

Physicist and author at Caltech. Married to @JenLucPiquant. Poetic naturalist. Asking questions of the universe, hoping they're the right ones. See also @wiawm.
Los Angeles
8 yrs, 2 mos on Twitter
92,208 46.7%
31.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
7 yrs, 8 mos on Twitter
5,712 46.7%
32.profile imageElon Musk

Tesla, SpaceX, OpenAI & Neuralink
7 yrs, 10 mos on Twitter
8,367,572 46.0%
33.profile imageSarah Tuttle

Astrophysicist. Mom. Lunatic. Bionic Woman. Armed with wrenches & a dream. Professor. Legally & reputationally risky. 100% problematic.
Feminist Dystopian Hellscape
9 yrs, 3 mos on Twitter
7,523 45.7%
34.profile imageMeg Urry

Yale professor of physics, President of American Astronomical Society, likes supermassive black holes, teaching, writing, increasing diversity, ++my family
Yale University
5 yrs, 5 mos on Twitter
3,746 45.7%
35.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
7 yrs, 8 mos on Twitter
3,626 45.7%
36.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, 2 mos on Twitter
514,060 45.3%
37.profile imageKelle Cruz

Astronomer, professor at @Hunter_College, associate at @AMNH. Liveable streets advocate. @Spurs fan. Founder, editor of @AstroBetter & CEO of @ScienceBetter
New York, NY
8 yrs, 3 mos on Twitter
3,289 45.3%
38.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, 3 mos on Twitter
30,149 44.9%
39.profile imageAstrotweep: James

James Guillochon • @astrocrash • https://t.co/M3xNXcq15L • A new astronomer/planetary scientist tweeting about space each week
The Universe
3 yrs, 3 mos on Twitter
6,468 44.9%
40.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, 6 mos on Twitter
3,474 44.9%
41.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, 5 mos on Twitter
10,372 44.6%
42.profile imageBrooke Simmons

Somewhat distracted astrophysicist researching galaxies and black holes; on @galaxyzoo & @the_zooniverse teams. Also: equity & diversity in science.
San Diego, CA
8 yrs, 7 mos on Twitter
3,400 44.6%
43.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
8 yrs, 9 mos on Twitter
268,999 44.2%
44.profile imageNicole Gugliucci

Astronomer. Educator. Professor. Social justice advocate. Geek. Crossfitter. Dog mom. Tweets my own. RT != endorsement.
New Hampshire, USA
8 yrs, 10 mos on Twitter
12,837 44.2%
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, 4 mos on Twitter
18,548 43.8%
46.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, 0 mos on Twitter
9,904 43.1%
47.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, 3 mos on Twitter
9,493 43.1%
48.profile imageEmily Rice

Astronomer at @csinews, @GC_CUNY, & @AMNH; #BDNYC & #CUNYAstro; @AstronomyOnTap organizer, 1/2 of @startorialist, & @knitted_bd host ⭐️. Not @djcarlysagan 😜
9 yrs, 7 mos on Twitter
3,221 43.1%
49.profile imageSarcasticRover

Doing a science on the red planet. Not @MarsCuriosity. Tweets relayed by @jfiliatrault.
4th Rock From the Sun
4 yrs, 8 mos on Twitter
345,857 42.4%
50.profile imageMeg Schwamb

Planetary scientist, astronomer, Gemini North assistant scientist: KBOs, Planet Four (Mars), MBCs(Comet Hunters), & citizen science. Opinions tweeted are my own
Hilo, HI
6 yrs, 11 mos on Twitter
3,058 41.7%
51.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, 5 mos on Twitter
436,673 41.3%
52.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]
6 yrs, 7 mos on Twitter
2,048,706 40.9%
53.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
2 yrs, 8 mos on Twitter
321,544 40.9%
54.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, 7 mos on Twitter
147,373 40.9%
55.profile imageAlessondraSpringmann

asteroids, sounding rockets, radar, saguaro, geology, autoimmune disease, puns, anticolonial intersectional feminism, cat herding, 小惑星レーダー天文学者
Tohono O'odham land
7 yrs, 0 mos on Twitter
4,674 40.9%
56.profile imageDr. Chanda 🇧🇧

Dr Prescod-Weinstein #BlackandSTEM 🏳️‍🌈 @jocsm4pal astro|physics theory postdoc, gq ♀, EditorInChief @TheOffingMag #histsci #histSTM https://t.co/CTwP5K5W9l
Seattle, WA/Cambridge, MA
8 yrs, 10 mos on Twitter
15,603 40.6%
57.profile imageCassiniSaturn

Cruising around Saturn, its moons and the magnificent rings
Saturn, Solar System
8 yrs, 10 mos on Twitter
1,212,701 39.9%
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
3 yrs, 3 mos on Twitter
2,186 39.9%
59.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, 0 mos on Twitter
671,345 39.5%
60.profile imageESO

The European Southern Observatory (ESO) is the most productive observatory in the world.
Garching, Germany
8 yrs, 8 mos on Twitter
57,262 39.5%
61.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, 1 mo on Twitter
16,800 39.5%
62.profile imageBill Nye

Everyone you will ever meet knows something you don't.
New York City
7 yrs, 11 mos on Twitter
4,753,731 39.1%
63.profile imageUniverse Today

Universe Today - universetoday.com, a website about space and astronomy. Tweets are probably coming from @fcain
Courtenay, British Columbia
8 yrs, 1 mo on Twitter
265,905 39.1%
64.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, 3 mos on Twitter
3,838 39.1%
65.profile imageMatthew R Francis

Writer of science, fiction, and comics. Wearer of jaunty hats. Social Justice Doof Warrior. Avatar by @ScienceComic . Will science for food.
Yavin 4
6 yrs, 7 mos on Twitter
13,959 38.8%
66.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, 2 mos on Twitter
4,860 38.8%
67.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, 4 mos on Twitter
67,752 38.4%
68.profile imageDavid Spergel

Astrophysicist at Princeton University and Flatiron Institute
Princeton NJ
3 yrs, 3 mos on Twitter
3,604 38.4%
69.profile imageNature News&Comment

Science news & opinion from the news team at Nature, the weekly journal of #science. Get our daily newsletter: go.nature.com/dailynews
8 yrs, 8 mos on Twitter
1,664,655 38.0%
70.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, 2 mos on Twitter
553,408 38.0%
71.profile imageESA Science

Science @ the European Space Agency ESA, keeping you posted on European space science activities.
Noordwijk, The Netherlands
7 yrs, 3 mos on Twitter
251,177 38.0%
72.profile imageKevin Schawinski

Asst Prof @ETH_en | black holes & galaxies | #citizenscience & @galaxyzoo | deep learning | speaker | space.ml
Zurich, Switzerland
6 yrs, 3 mos on Twitter
2,893 38.0%
73.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, 2 mos on Twitter
2,168 38.0%
74.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, 2 mos on Twitter
2,744,993 37.7%
75.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, 0 mos on Twitter
321,053 37.7%
76.profile imageRobert Simpson

Googler, astronomer, TED Fellow. Views are my own.
10 yrs, 0 mos on Twitter
33,172 37.3%
77.profile imageSarah Ballard

Habitable worlds, kindness, fiction, etc. At ~75 km/s*Mpc!
Cambridge, MA
3 yrs, 2 mos on Twitter
2,400 37.0%
78.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
6 yrs, 10 mos on Twitter
17,255 36.6%
79.profile imageDr Chiara Mingarelli

Marie Curie Fellow in #GravitationalWave #Astrophysics at MPIfR via @Caltech, @NASAJPL, @unibirmingham. From Ottawa, Canada
Gravitational Wave Astrophysics w...
Bonn, Germany
6 yrs, 2 mos on Twitter
4,351 36.6%
80.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, 6 mos on Twitter
16,379 36.2%
81.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, 2 mos on Twitter
112,943 35.9%
82.profile imageJedidah Isler, PhD

Relentless Dreamer / Astrophysicist / Science Lover / Innovator / TED Fellow / Founder & Host @VanguardSTEM / @NatGeo Emerging Explorer / @TheRoot 100
6 yrs, 8 mos on Twitter
8,015 35.9%
83.profile imageMarc Kuchner

PI of Citizen Science projects backyardworlds.org, diskdetective.org, Astrophysicist, Songwriter.
Marketing for Scientists
Greenbelt, MD
8 yrs, 4 mos on Twitter
5,821 35.9%
84.profile imageTim Peake

ESA astronaut & test pilot back on Earth after 6 months in space. Tweets are my own. Book out now (all proceeds to Prince’s Trust): https://t.co/kCC7qgSvBz
Cologne, Germany
5 yrs, 0 mos on Twitter
1,505,298 35.5%
85.profile imageShit Academics Say

A social experiment | @prof_nch
3 yrs, 7 mos on Twitter
244,118 35.5%
86.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, 1 mo on Twitter
22,426 35.5%
87.profile imageJane MacArthur

Planetary scientist @UniOfLeicester studying martian meteorites & comet dust. @RoyalAstroSoc Council #actuallivingscientist #STEMAmbassador #UKSpace2017 #PS9605
8 yrs, 2 mos on Twitter
5,494 35.1%
88.profile imageRisa Wechsler

astrophysicist. cosmologist. maker of universes and various kinds of trouble. professor of physics @ stanford
San Francisco
4 yrs, 7 mos on Twitter
2,390 35.1%
89.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, 0 mos on Twitter
1,803 35.1%
90.profile imageDavid Grinspoon

Astrobiologist, author, musician Senior Scientist @planetarysci House Band of Universe. Columnist @SkyandTelescope Sagan Medalist. New book EARTH IN HUMAN HANDS
Earth in Human Hands
Towards Understanding the Climate...
Venus Revealed
Biosphere One
5 yrs, 7 mos on Twitter
22,739 34.8%
91.profile imageAmber Straughn

Arkansas native & @NASA astrophysicist. Climate change is real. Pilot, yogini, homebrewer, Great Dane mom, @PearlJam fan, Razorback 🏈 fan, #FirstGen Tweets mine
5 yrs, 11 mos on Twitter
9,911 34.8%
92.profile imageHaley Gomez

I'm an Astrophysicist, love books, films astronomy, shoes and dresses.
7 yrs, 4 mos on Twitter
2,448 34.4%
93.profile imageChristina R.

Planetary Scientist/Astrophysicist, Past Chair of @AAS_Women, fighter for inclusion in STEM, runner, wine drinker; views are my own.
1 yr, 7 mos on Twitter
1,734 34.4%
94.profile imageJessie Christiansen

Exoplanet scientist, purveyor of fine @NASAKepler data, and science curator at @NASAExoplanetArchive.
Caltech, Pasadena, CA, USA
3 yrs, 3 mos on Twitter
1,691 34.4%
95.profile imageAlan Duffy

Astronomer / physicist. A/Professor at @Swinburne making galaxies there since 2014. Instagram.com/dr.a.duffy
4 yrs, 9 mos on Twitter
13,605 34.1%
96.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
7 yrs, 11 mos on Twitter
7,261 34.1%
97.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.
5 yrs, 10 mos on Twitter
1,603 34.1%
98.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, 5 mos on Twitter
190,238 33.7%
99.profile imagePeter Coles

Theoretical astrophysicist, specialising in cosmology. Also interested in jazz, opera, poetry, crosswords, etc. Citizen of Nowhere.
From Cosmos to Chaos
Cardiff, Wales
7 yrs, 6 mos on Twitter
4,357 33.7%
100.profile imageJessica Kirkpatrick

Dr. Jessica Ann Kirkpatrick, Astrophysicist → Data Scientist @Hired_HQ (formerly @Yammer & @InstaEDU). Also @AAS_Women @data4america @techiesproject
San Francisco, CA
7 yrs, 9 mos on Twitter
3,706 33.7%
101.profile imageBenneHolwerda

Astronomer at large (mostly harmless). University of Louisville. Opinions & typos obv my own.
the Netherlands
8 yrs, 9 mos on Twitter
1,072 33.7%
102.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
7 yrs, 10 mos on Twitter
1,052,195 33.3%
103.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
6 yrs, 8 mos on Twitter
4,895 33.3%
104.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 ...
6 yrs, 8 mos on Twitter
4,819 33.3%
105.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, 0 mos on Twitter
1,651 33.3%
106.profile imageSTARtorialist

Where science meets fashion and scientists get FABULOUS! By professional astronomers @Summer_Ash & @emilylurice.
The Universe
3 yrs, 4 mos on Twitter
3,067 33.0%
107.profile imageAlberto Conti

Astrophysicist & Innovation Manager google.com/sky/ - hubblesite.org/ibooks Tweets are my own, at least in this multiverse.
8 yrs, 9 mos on Twitter
2,699 33.0%
108.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
7 yrs, 11 mos on Twitter
2,108 33.0%
109.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.
7 yrs, 8 mos on Twitter
48,874 32.6%
110.profile imageStuart Clark

Astronomer, journalist, author. The Sky's Dark Labyrinth, The Unknown Universe. Writes Across the Universe for The Guardian. Co-hosts The Stuniverse podcast.
Is There Life On Mars?
The Unknown Universe
Little Moon
7 yrs, 11 mos on Twitter
36,953 32.6%
111.profile imageDr. Ian O'Neill

Recovering British solar physicist, freelance science writer, digital producer, skeptic. Previously: @Discovery, @Seeker. @EVEOnline capsuleer. IG: @astroengine
Woodland Hills, Los Angeles
8 yrs, 8 mos on Twitter
36,089 32.6%
112.profile imageTanya Harrison

🇨🇦Professional Martian. @asunewspace Research Scientist, @exploreplanets web editor, current/former sci team @MarsRovers, @MarsCuriosity & Mars Recon Orbiter.
Toronto / Tempe
8 yrs, 1 mo on Twitter
9,410 32.6%
113.profile imageWoman Astro

Promoting astronomy, encouraging women/girls interested in science. WomanAstro.com, etsy.com/shop/WomanAstro
7 yrs, 4 mos on Twitter
4,504 32.6%
114.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, 0 mos on Twitter
1,441 32.6%
115.profile imageRuth Angus

Researching exoplanets & rebugging in python.
Oxford, UK
6 yrs, 0 mos on Twitter
1,289 32.6%
116.profile imageCERN

CERN, the European Organization for Nuclear Research, is the world's largest particle physics lab and has #RestartLHC for #13TeV collisions. French: @CERN_FR
8 yrs, 10 mos on Twitter
2,071,907 32.2%
117.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.
5 yrs, 9 mos on Twitter
912,174 32.2%
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, 5 mos on Twitter
16,968 32.2%
119.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
3 yrs, 10 mos on Twitter
2,078 32.2%
120.profile imageJennifer L. Hoffman

    Astronomer, associate professor, alto, auntie, ailurophile.  University of Denver
Stellar Polimetry
Denver, CO
3 yrs, 3 mos on Twitter
1,815 32.2%
121.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, 1 mo on Twitter
4,655 31.9%
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, 2 mos on Twitter
1,838 31.9%
123.profile imageJane Rigby

Astronomer who researches black holes & galaxies, uses telescopes around world & in space, helps build Webb Telescope @NASA. Queer, parent, geek, UU. Views mine
DC Metro
6 yrs, 3 mos on Twitter
1,542 31.9%
124.profile imageJonathan Amos

BBC Science Correspondent
Cambridge, UK
7 yrs, 3 mos on Twitter
39,078 31.5%
125.profile imageNancy Atkinson

Editor for Universe Today and author of the book 'Incredible Stories From Space'
8 yrs, 10 mos on Twitter
11,267 31.5%
126.profile imageNASA Goddard

Tweeting the best in heliophysics, technology, astrophysics, Earth sciences and robotic exploration for the Goddard Space Flight Center.
Greenbelt, MD USA
8 yrs, 2 mos on Twitter
387,848 31.2%
127.profile image.Astronomy

Conference series about what happens when hackers, astronomers and the web all get together.
Cambridge, MA, USA
8 yrs, 11 mos on Twitter
3,889 31.2%
128.profile imageDan F-M

I write code for good & astrophysics.
5 yrs, 8 mos on Twitter
1,810 31.2%
129.profile imageProf. Jorge Moreno

Astrophysicist | Visiting Scholar at Harvard | AAS CSMA Chair | Assistant Professor | CPP to Pomona College
Cambridge, MA
2 yrs, 8 mos on Twitter
1,014 31.2%
130.profile imageScott Kelly

Houston, TX
7 yrs, 8 mos on Twitter
3,329,943 30.8%
131.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, 11 mos on Twitter
1,317,492 30.8%
132.profile imageNYT Science

Science, Environment, Space and Cosmos. Sign up for the Science Times email newsletter: nyti.ms/20Qgv3s
New York, NY
10 yrs, 1 mo on Twitter
1,098,763 30.8%
133.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, 6 mos on Twitter
12,111 30.8%
134.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, 0 mos on Twitter
9,522 30.8%
135.profile imageJJ Eldridge

NZ Astrophysicist warrior princess studying exploding binary stars. Lecturer, Speaker, Sci-fi addict, feminist, trans/genderfluid, prefers them/they pro-nouns.
Auckland, New Zealand
4 yrs, 0 mos on Twitter
1,676 30.8%
136.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, 7 mos on Twitter
1,647 30.8%
137.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
8 yrs, 11 mos on Twitter
2,573,132 30.4%
138.profile imageSPACE.com

News coverage and conversation about space science, astronomy and exploration. Part of @Purch
8 yrs, 9 mos on Twitter
578,887 30.4%
139.profile imageESA Operations

From near Earth orbit to deep space: sharing the excitement of realtime mission operations at ESA #ESOC50 8 September 2017
Darmstadt, Germany
8 yrs, 5 mos on Twitter
221,437 30.4%
140.profile imageMatt Taylor

I work on the ESA Rosetta mission
4 yrs, 7 mos on Twitter
33,555 30.4%
141.profile imageAlan Boyle

Aerospace and science editor @GeekWire. Longtime blogger @CosmicLog. Author of "The Case for Pluto." Links/RTs ≠ endorsements
9 yrs, 2 mos on Twitter
30,583 30.4%
142.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
8 yrs, 9 mos on Twitter
22,401 30.4%
143.profile imageMeg Rosenburg

planetary science PhD | #scicomm & #histSTM | freelancer, filmmaker, podcaster | megrosenburg.com | And what you do, do it unfeignedly.
Somerville, MA
4 yrs, 4 mos on Twitter
4,297 30.4%
144.profile imageJosh Peek

Personal account; statements do not reflect the position of any employer!
8 yrs, 2 mos on Twitter
993 30.4%
145.profile imageWIRED Science

Bringing the radiothermally generated heat. The team: @KatieMPalmer, @StocktonSays, @MeganMolteni, and @MrMattSimon.
San Francisco, California
9 yrs, 7 mos on Twitter
2,035,507 30.1%
146.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
3 mos on Twitter
904,164 30.1%
147.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, 5 mos on Twitter
25,212 30.1%
148.profile imageMika McKinnon

Field geophysicist, disaster researcher, scifi science consultant, science writer, public speaker, irrepressible educator.
7 yrs, 10 mos on Twitter
12,811 30.1%
149.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, 3 mos on Twitter
3,847 30.1%
150.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, 1 mo on Twitter
3,239 30.1%
151.profile imageScience Friday

Brain fun for curious people. Hosted by @iraflatow, from @PRI.
New York, New York
8 yrs, 6 mos on Twitter
759,957 29.7%
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, 1 mo on Twitter
85,431 29.7%
153.profile imagerealscientists

Real science from real scientists, writers, communicators, artists & clinicians. This week: Ritu Raman | @DrRituRaman
4 yrs, 2 mos on Twitter
49,425 29.7%
154.profile imageBlackPhysicists

Arlington, VA and Worldwide
7 yrs, 10 mos on Twitter
15,540 29.7%
155.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)
2,301 29.7%
156.profile imageJason Wright

Associate Professor of Astronomy and Astrophysics at Penn State. Astronomy and meta-astronomy. Opinions are my own.
State College, PA, USA
4 yrs, 7 mos on Twitter
2,285 29.7%
157.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
7 yrs, 8 mos on Twitter
2,080 29.7%
158.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, 0 mos on Twitter
148,200 29.3%
159.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, 0 mos on Twitter
33,006 29.3%
160.profile image★ Colin Stuart ★

Astronomy author, writer & speaker. The Geek Guide to Life out now - amzn.to/2aQwxoG. See website for books + business & schools talks.
The Geek Guide to Life
Exploring the Mysteries of Scienc...
The Big Questions in Science
8 yrs, 4 mos on Twitter
5,699 29.3%
161.profile imageHubble

The official Twitter account for the NASA Hubble Space Telescope. #SpotHubble
Goddard Space Flight Center
9 yrs, 1 mo on Twitter
2,753,604 29.0%
162.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
8 yrs, 10 mos on Twitter
423,522 29.0%
163.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, 2 mos on Twitter
32,724 29.0%
164.profile imageESA Gaia

Science with 1 billion objects in three dimensions
8 yrs, 2 mos on Twitter
13,538 29.0%
165.profile imageWill Gater

Astronomer, journalist & space geek willgater.com | willgaterastrophotography.com
8 yrs, 11 mos on Twitter
7,385 29.0%
166.profile imageRobert Massey

Dad, Deputy Executive Director RAS. RTs and likes not endorsements, views expressed are my own. For official comment see @royalastrosoc
Bristol (Southville) & London
7 yrs, 8 mos on Twitter
2,466 29.0%
167.profile imageJason Kalirai

Canadian-born NASA Astrophysicist. JWST Project Scientist, BIG fan of Hubble, WFIRST, & LSST. HUGE Dallas Cowboys football fan. Love MMSJ. Tweets are my own.
Ellicott City, MD
5 yrs, 9 mos on Twitter
1,962 29.0%
168.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, 1 mo on Twitter
1,901 29.0%
169.profile imageCorey S. Powell

Science editor at @aeonmag. Contributing editor and blogger at @discovermag. Contributing editor at @AmSciMag. Science-curious.
8 yrs, 2 mos on Twitter
27,900 28.6%
170.profile imageDr Lisa Harvey-Smith

Astrophysicist, Ultramarathoner, Sometimes on telly #StargazingABC, #LifeOnTheLine @AstroCourses, Gooner, Vego, Friend of Dorothy lisaharveysmith.com
5 yrs, 5 mos on Twitter
5,366 28.6%
171.profile imageAstro Union

Founded in 1919, the International Astronomical Union (IAU) promotes and safeguards the science of astronomy through international cooperation.
2 yrs, 11 mos on Twitter
4,311 28.6%
172.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
8 yrs, 10 mos on Twitter
2,157 28.6%
173.profile imageBecky Smethurst

Doctor of Astrophysics | @galaxyzoo | @dotastronomy | @sixtysymbols | University of Nottingham | FameLab | #scicomm | Enthusiasm reigns here!
Nottingham, UK
8 yrs, 0 mos on Twitter
1,220 28.6%
174.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, 10 mos on Twitter
15,505,582 28.3%
175.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, 6 mos on Twitter
197,264 28.3%
176.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, 3 mos on Twitter
98,089 28.3%
177.profile imageBobak Ferdowsi

Explorer of space. Engineer on NISAR Earth Science & Europa Clipper. Mars Curiosity, Cassini Saturn Opinions mine 'once had a funny haircut' - @lazer2k
Pasadena, CA
7 yrs, 8 mos on Twitter
91,413 28.3%
178.profile imageLIGO

I am the Laser Interferometer Gravitational-wave Observatory. I look for space-time ripples.
Livingston, LA and Hanford, WA
8 yrs, 10 mos on Twitter
35,629 28.3%
179.profile imageAmy Mainzer

Jet Propulsion Laboratory
4 yrs, 2 mos on Twitter
24,655 28.3%
180.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, 6 mos on Twitter
5,914 28.3%
181.profile imageMark McCaughrean

Senior Advisor for Science & Exploration at the European Space Agency. Very well aware of the (in)significance of being recycled star stuff. Opinions own.
The Origins of Stars and Planets
The Origins of Stars and Planets
Wassenaar, Netherlands
1 yr, 8 mos on Twitter
3,379 28.3%
182.profile imageTrueSciPhi

A window on science and philosophy communities on Twitter and YouTube, by Kelly Truelove (physics PhD, etc.). See site for more.
1 yr, 11 mos on Twitter
3,271 28.3%
183.profile imageStephen Serjeant

Professor of Astronomy at the Open University, roped into various OU/BBC things too. 13.1. The views here do not necessarily blah blah.
An Introduction to Galaxies and C...
Observational Cosmology
8 yrs, 1 mo on Twitter
1,935 28.3%
184.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, 3 mos on Twitter
1,180 28.3%
185.profile imageAdam Burgasser

astrophysicist, professor, and preferably in the water.
on a plane, or San Diego
6 yrs, 8 mos on Twitter
1,166 28.3%
186.profile imageJeff Foust

Senior writer, @SpaceNews_Inc. You know the drill: retweets aren't endorsements; opinions here are my own.
Rockville, Maryland, USA
9 yrs, 10 mos on Twitter
26,576 27.9%
187.profile imagegalaxyzoo

It's Galaxy Zoo!
8 yrs, 3 mos on Twitter
13,384 27.9%
188.profile imageJess ♿ & Hubble🐕

Queer enby astrophysicist, accessibility consultant, & science writer. Cofounder of @AAS_WGAD, creator of #disabledandSTEM. Game reviews on @Metacritic & ICXM!
Washington, DC
5 yrs, 10 mos on Twitter
3,305 27.9%
189.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, 1 mo on Twitter
1,849 27.9%
190.profile imageAnna Watts

Associate Professor of Astrophysics @ University of Amsterdam. Neutron stars. Mom, Yorkshire-Scot in the Flatlands. "Particles in stars blah blah."
2 yrs, 11 mos on Twitter
1,627 27.9%
191.profile imageMichelle Collins

Astrophysics Lecturer @surreyastro, working on Local Group galaxies. Soft spot for Andromeda. Keen runner therunningastronomer.com
Guildford, England
7 yrs, 11 mos on Twitter
1,034 27.9%
192.profile imageDNLee

#NewProf, Mammalogist, Diversity & Access to STEM, Unapologetically Intersectional, Mama Panyabuku, TED Fellow
Midwest, US; Tanzania, Africa
6 yrs, 8 mos on Twitter
21,890 27.5%
193.profile imageJason Major

Space. Planets. NASA. Science. Rocketry. Astronomy. Democracy. Atheism. Humanism. Environmentalism. Nature. Birds. Coffee. Sometimes I make pictures.
Warwick, RI
7 yrs, 3 mos on Twitter
17,010 27.5%
194.profile imageRobert McNees

Theoretical physicist. Associate professor. Black holes, quantum gravity, cosmology. Venusian clunk. Tar Heel. RTs = spooky action at a distance. Opinions mine.
Chicago, z=0
8 yrs, 10 mos on Twitter
6,938 27.5%
195.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, 3 mos on Twitter
3,536 27.5%
196.profile imageJo Dunkley

Professor of Physics and Astrophysics at Princeton
Princeton, NJ
5 yrs, 6 mos on Twitter
1,681 27.5%
197.profile imageJohanna

Astronomer, runner, educator, feminist, vegan, baker, #Nats fan
Pasadena, CA
3 yrs, 3 mos on Twitter
1,262 27.5%
198.profile imageJonathan Pritchard

Imperial astrophysicist and bewildered vagabond. SKA enthusiast. (opinions mine, not employer's)
Richmond, London
6 yrs, 3 mos on Twitter
1,233 27.5%
199.profile imageErik Tollerud

Astrophysicist, Python coder, and general lover of nature in all its forms.
Baltimore, MD
7 yrs, 11 mos on Twitter
870 27.5%
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, 2 mos on Twitter
1,022,835 27.2%
201.profile imageInstitute of Physics

Official Twitter account for the Institute of Physics (IOP). facebook.com/instituteofphy…
8 yrs, 0 mos on Twitter
154,408 27.2%
202.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, 6 mos on Twitter
4,978 27.2%
203.profile imageEmily Levesque

The real exciting sound in science is not, 'Eureka!' It's, 'Wow, that's weird.'
Seattle, WA
7 yrs, 2 mos on Twitter
938 27.2%
204.profile imageHUBBLE

The official feed of ESA/Hubble. The Hubble Space Telescope is the space-based observatory which has revolutionised modern astronomy.
6 yrs, 11 mos on Twitter
361,285 26.8%
205.profile imageHubbleTelescope

News from the Hubble Space Telescope
8 yrs, 10 mos on Twitter
111,264 26.8%
206.profile imageRadio Astrology

Opening new windows in the prediction spectrum. Astrology at long wavelengths.
In the stars (and the ISM)
5 yrs, 5 mos on Twitter
3,015 26.8%
207.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.
6 yrs, 8 mos on Twitter
2,964 26.8%
208.profile imageAndy Rivkin

Planetary astronomer on #TeamAsteroid; Gedankenband member and guitarist; Persistently Obstreperous.
8 yrs, 10 mos on Twitter
2,881 26.8%
209.profile imagePaul Crowther

@unisheffield Astrophysics Prof mostly researching Monster Stars. Keen interest in UK sci policy, esp @STFC_Matters's ups & downs
Peoples Republic of Sheffield
7 yrs, 4 mos on Twitter
2,641 26.8%
210.profile imageStephen Fry

Actor and writer currently working on new TV comedy @GreatIndoorsCBS Instagram – stephenfryactually 🏳️‍🌈
Los Angeles, CA
8 yrs, 9 mos on Twitter
12,527,674 26.4%
211.profile imageMike Massimino

Former @NASA astronaut, Professor at Columbia @CUSEAS, Sr. Advisor for Space Programs @IntrepidMuseum, Author of #Spaceman
New York, NY
8 yrs, 0 mos on Twitter
1,356,909 26.4%
212.profile imageKristin Block

Spacecraft pro, taiko player, bassist, percussionist. Miami-Tucson-Bay Area. (Not affiliated with the mission @Maven2Mars, just coincidence!) Opinions my own.
San Jose, CA
7 yrs, 10 mos on Twitter
2,772 26.4%
213.profile imageJames Davenport

Astronomy PhD, Postdoctoral Fellow, blogger, casual data analyst, Seattleite. All opinions are my own.
4 yrs, 11 mos on Twitter
1,557 26.4%
214.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, 0 mos on Twitter
953,942 26.1%
215.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
2 yrs, 8 mos on Twitter
69,080 26.1%
216.profile imageAmy Shira Teitel

BREAKING THE CHAINS OF GRAVITY is out now! bit.ly/astbtcog. Blog and vlog Vintage Space: bit.ly/vintagespace. Also, Patreon: patreon.com/amyshirateitel
Los Angeles, CA
6 yrs, 5 mos on Twitter
56,823 26.1%
217.profile imageKim Kowal Arcand

Mom of 2. Science viz lead for @chandraxray; favorite kind of light=X-rays. Latest book: Light. TedX speaker. Opinions=my own arcandwatzke.com
9 yrs, 1 mo on Twitter
6,269 26.1%
218.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
6 yrs, 6 mos on Twitter
5,649 26.1%
219.profile imageKimberly EnnicoSmith

"You cannot solve a problem with the level of thinking that created it." - Albert Einstein
Boulder, CO, Mountain View, CA
9 yrs, 2 mos on Twitter
3,652 26.1%
220.profile imageJen Gupta

Space nerd. @UoPCosmology Astrophysics Outreach Officer. @WinSciFest Director. @SeldomSirius host. Active Galaxies were my first love.
Winchester, UK
7 yrs, 8 mos on Twitter
2,528 26.1%
221.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.
5 yrs, 11 mos on Twitter
1,751 26.1%
222.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, 5 mos on Twitter
1,519 26.1%
223.profile imagePHD Comics

Life (or the lack thereof) in Academia.
8 yrs, 9 mos on Twitter
149,328 25.7%
224.profile imageESA Planck

A European Space Agency (ESA) spacecraft to understand the origin and evolution of our Universe
L2: 1,000,000 miles from Earth
8 yrs, 10 mos on Twitter
46,815 25.7%
225.profile imageEllen Stofan

Planetary geologist, STEM advocate, former Chief Scientist of NASA
Exploring Venus as a Terrestrial ...
5 yrs, 2 mos on Twitter
7,417 25.7%
226.profile imageAstropy

This is the official twitter account for the Astropy project.
5 yrs, 9 mos on Twitter
1,807 25.7%
227.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, 5 mos on Twitter
14,291 25.4%
228.profile imageJackie Faherty

Astrophysicist at @AMNH, alumna of @CarnegieAstro. Enthusiast for bringing the cosmos to the public (check out @backyardworlds). #womeninscience #BDNYC
8 yrs, 1 mo on Twitter
2,998 25.4%
229.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, 5 mos on Twitter
2,407 25.4%
230.profile imageJames Bullock

Professor of Physics & Astronomy. Cosmologist, Anteater, and Buckeye.
California, USA
7 yrs, 8 mos on Twitter
2,220 25.4%
231.profile imageHillary Clinton

Wife, mom, grandma, women+kids advocate, FLOTUS, Senator, SecState, hair icon, pantsuit aficionado, 2016 presidential candidate.
New York, NY
4 yrs, 0 mos on Twitter
14,154,497 25.0%
232.profile imageElise Andrew

just a liberal, freckle-faced slut - some dude on Twitter. Also, I Fucking Love Science.
London, England
4 yrs, 1 mo on Twitter
67,616 25.0%
233.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
6 yrs, 7 mos on Twitter
26,483 25.0%
234.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, 1 mo on Twitter
15,983 25.0%
235.profile imageSTFC

Science and Technology Facilities Council: Pioneering science for a better future. See @STFC_B2B for business news.
7 yrs, 7 mos on Twitter
13,762 25.0%
236.profile imageSloan Digital Sky

Tweeting about mapping the Universe @APOGEEsurvey @eBOSSurvey @MaNGASurvey
Apache Point Observatory.
4 yrs, 2 mos on Twitter
2,258 25.0%
237.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, 2 mos on Twitter
1,137 25.0%
238.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, 1 mo on Twitter
1,345,462 24.6%
239.profile imageNASA Kennedy / KSC

Official Tweets from NASA's Kennedy Space Center
Florida, USA
8 yrs, 6 mos on Twitter
1,273,380 24.6%
240.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, 1 mo on Twitter
28,949 24.6%
241.profile imageJon Butterworth

Physics prof at UCL, works on #LHC. theguardian.com/science/life-a… Citizen of England, UK, Europe & Nowhere, apparently. Personal account.
Mainly London & Geneva.
7 yrs, 6 mos on Twitter
13,638 24.6%
242.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
5 yrs, 11 mos on Twitter
6,223 24.6%
243.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, 5 mos on Twitter
2,026 24.6%
244.profile imageBenjamin Pope

Astronomer, Bayesian, foodie
Oxford, UK
4 yrs, 3 mos on Twitter
1,945 24.6%
245.profile imageDerek Fox

Research astronomer and faculty member at Penn State University. This is a personal Twitter account.
8 yrs, 1 mo on Twitter
1,782 24.6%
246.profile imageGrant Tremblay

Observational astrophysicist and @NASA Einstein Fellow @Yale. Heart remains in Maine. Views my own.
New Haven
8 yrs, 2 mos on Twitter
885 24.6%
247.profile imageBBC Science News

News, features and analysis from the BBC Science & Environment news desk.
London, England
10 yrs, 3 mos on Twitter
1,346,185 24.3%
248.profile imageNASA Voyager

The official account for NASA’s twin Voyager 1 & 2 spacecraft, the longest operating spacecraft in deep space.
Interstellar space
6 yrs, 8 mos on Twitter
438,051 24.3%
249.profile imageDr. Brian May

Rocket Ship Builder
4 yrs, 6 mos on Twitter
420,341 24.3%
250.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, 6 mos on Twitter
107,981 24.3%
251.profile imageNRAO

The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc.
Charlottesville, VA
8 yrs, 6 mos on Twitter
10,835 24.3%
252.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.
5 yrs, 9 mos on Twitter
4,429 24.3%
253.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, 5 mos on Twitter
4,162 24.3%
254.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, 1 mo on Twitter
3,107 24.3%
255.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, 1 mo on Twitter
1,488 24.3%
256.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
2 yrs, 10 mos on Twitter
1,307 24.3%
257.profile imageAdrian Price-Whelan

astrophysics, galaxy dynamics github.com/adrn facebook.com/operatormusicb…
Princeton, NJ
5 yrs, 10 mos on Twitter
1,083 24.3%
258.profile imageMark Marley

Astronomer working for a well known national space agency. Interests include extrasolar planets, brown dwarfs, giant planets. Opinions are mine alone.
Mountain View, California
6 yrs, 9 mos on Twitter
1,055 24.3%
259.profile imageNate Silver

Editor-in-Chief, @FiveThirtyEight. Author, The Signal and the Noise (amzn.to/QdyFYV). Sports/politics/food geek.
New York
8 yrs, 7 mos on Twitter
2,210,663 23.9%
260.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
3 yrs, 11 mos on Twitter
1,507,187 23.9%
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
9 yrs, 11 mos on Twitter
235,844 23.9%
262.profile imageInstant ⭐️ Xenomorph

Freelance astrophysicist for hire. Will test hypotheses for food.
8 yrs, 0 mos on Twitter
1,784 23.9%
263.profile imageAstroPhD Katey ✨

The sky calls to us. If we do not destroy ourselves, we will one day venture to the stars. - Carl Sagan
Pasadena, CA
8 yrs, 10 mos on Twitter
1,107 23.9%
264.profile imageJoanna Barstow

RAS Research Fellow and Planetary Scientist at UCL, STEM Ambassador, sci outreacher, FRAS, ScienceGrrl. Christian, singer, bookworm.
3 yrs, 7 mos on Twitter
1,089 23.9%
265.profile imageStephen Colbert

8 yrs, 7 mos on Twitter
13,110,761 23.6%
266.profile imageDara Ó Briain

Infamous Brit-Licker; also been known to hand out free puppies. Currently touring new show Crowd Tickler
Beneath your wings.
7 yrs, 10 mos on Twitter
2,453,877 23.6%
267.profile imageNational Science Fdn

Where Discoveries Begin. Social media policy: bit.ly/smpnsf
Arlington, Virginia
8 yrs, 7 mos on Twitter
1,047,919 23.6%
268.profile imageAstronomy Magazine

The best-selling astronomy magazine
Our tiny corner of the cosmos
8 yrs, 1 mo on Twitter
158,390 23.6%
269.profile imageAction Scientist

TV host @MeteoriteMen | Author | Adventurer | 2 x Emmy winner | @NSS Board of Governors | @TEDx + Science March speaker | Producer @GaimanMovie @RevengeofZoe
You can't get there from here
7 yrs, 4 mos on Twitter
14,086 23.6%
270.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, 6 mos on Twitter
9,559 23.6%
271.profile imageTim O'Brien

Professor of Astrophysics, Associate Director @jodrellbank, Science Director @bluedotfestival, President @popastro, likes exploding stars. 48%. My own views.
Manchester, UK
8 yrs, 2 mos on Twitter
8,851 23.6%
272.profile imageHenna

Founder at Universe Simplified (@UnivSimplified), Proponent of Disrupt Education and Maker Spaces, Astronomy Enthusiast, Solo Backpacker
7 yrs, 10 mos on Twitter
6,788 23.6%
273.profile imageSAO/NASA ADS

6 yrs, 4 mos on Twitter
1,649 23.6%
274.profile imageDr Chris Tibbs

@ESA Research Fellow. Astrophysicist at the European Space Agency. Astronomer abroad. My tweets are my own.
ESA via Manchester & Caltech

8 yrs, 1 mo on Twitter
1,029 23.6%
275.profile imageCaitlin Casey

Astronomer and Assistant Professor at the University of Texas at Austin.
Austin, TX
3 yrs, 2 mos on Twitter
934 23.6%
276.profile imageSpaceflight Now

The best source for space news
Cape Canaveral, Florida
8 yrs, 5 mos on Twitter
341,707 23.2%
277.profile imageNASA's MAVEN Mission

NASA mission to explore Mars' climate history through its upper atmosphere. Orbiting the red planet since Sept. 21, 2014 | lasp.colorado.edu/maven
Mars' upper atmosphere
8 yrs, 3 mos on Twitter
112,412 23.2%
278.profile imageUpulie Divisekera

Molecular Biologist | Nanotechnologist | TEDx | Space | Astropalaeontology | Co-founder, @realscientists| Dinosaur Evangelist | Science poetry & Communication |
Melbourne, Australia
6 yrs, 7 mos on Twitter
18,560 23.2%
279.profile imageCaleb Scharf

Director of Astrobiology at Columbia University. Blog at Sci Am (#sciamblogs). Author of The Copernicus Complex, Gravity's Engines and more...
The Zoomable Universe
The Copernicus Complex
Gravity's Engines
New York
6 yrs, 5 mos on Twitter
3,512 23.2%
280.profile imageCarolina Ödman

Astrophysicist mum of 2 working in technology, science, development, hacking (the good kind), photography, mostly in a state of happiness. Also @nakedmotherhood
Planet Earth, most of the time
9 yrs, 9 mos on Twitter
2,834 23.2%
281.profile imageLSST

The widest, fastest, deepest eye of the new digital age.
Cerro Pachon, Chile
8 yrs, 8 mos on Twitter
2,484 23.2%
282.profile imageDay 97/?

40.136397, -105.107532
8 yrs, 2 mos on Twitter
1,959 23.2%
283.profile imageAnais Rassat

Science. Interested in tech, innovation & science policy. Knowledge Transfer @CERN. Formerly @EPFL, @CEASaclay, @UCL . Celebrating #Einstein100. TCK.
7 yrs, 2 mos on Twitter
1,870 23.2%
284.profile imageEdward Gomez 🤖

Astronomer, coder, and web technology enthusiast. Believe everyone can be a scientist if they ask more questions.
Cardiff, UK
8 yrs, 10 mos on Twitter
1,699 23.2%
285.profile imageDianna Cowern

#PhysSciCommJediTraveler Creator of YouTube videos for every atom and eve. Please respond to tweets with bad puns.
San Diego
5 yrs, 1 mo on Twitter
44,885 22.8%
286.profile imageRemco Timmermans

Aspiring to be the best in social media for space | Owner @SeventyMedia | CEO @SpaceUpConf | @ISU_SSP #SSP17 #SSP18 Faculty | Team @dieAstronautin
Nijmegen, Netherlands
8 yrs, 2 mos on Twitter
21,942 22.8%
287.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, 0 mos on Twitter
10,103 22.8%
288.profile imageDr Sheila Kanani

@RoyalAstroSoc outreach officer, space(comedienne*educator*ambassador). Coke float drinking pocket rocket, planetary physicist, mum. Cofounder of @STEMMsisters.
LDN, Lytham, MCR (UK)
6 yrs, 4 mos on Twitter
2,815 22.8%
289.profile imageAmanda Yoho

Data Scientist, Cosmologist, former NASA Earth & Space Science fellow. Tweets most likely to be about space, beer, or python.
Cleveland, Ohio
4 yrs, 10 mos on Twitter
1,764 22.8%
290.profile imageVanessa Moss

Adventures of the Cosmic Pudding & sidekick Vanessa: astronomy research, outreach, observing... I run @arXiver & @AstroJobVis. More interesting than a giraffe.
Sydney, Australia
3 yrs, 11 mos on Twitter
1,463 22.8%
291.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
2 yrs, 11 mos on Twitter
994 22.8%
292.profile imageWilliam Keel

Astronomer, galaxy observer, trombonist, Galaxy Zoo team member, husband, father, employee of cats
Tuscaloosa, AL, USA
7 yrs, 2 mos on Twitter
868 22.8%
293.profile imageCaryl Gronwall

Astronomer at Penn State University
State College, PA
6 yrs, 1 mo on Twitter
813 22.8%
294.profile imageBrian Greene

Physicist, Author, Co-founder World Science Festival
New York, NY
4 yrs, 10 mos on Twitter
390,283 22.5%
295.profile imageMark Thompson

Mark Thompson - Astronomer, broadcaster and author seamuslyte.com/mark_thompson/
Norfolk, United Kingdom
7 yrs, 7 mos on Twitter
76,899 22.5%
296.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
8 yrs, 10 mos on Twitter
44,076 22.5%
297.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, 4 mos on Twitter
36,379 22.5%
298.profile imageKeaton S

Producer on @BBCTheOneShow #StargazingLive Dara OB Meets Stephen Hawking #VolcanoLive #Horizons #SkyAtNight #SpaceLive #StripTheCosmos & #DrWhoFest. #CHD
7 yrs, 7 mos on Twitter
3,974 22.5%
299.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, 2 mos on Twitter
3,317 22.5%
300.profile imageJC Holbrook

Astrophysicist turned Cultural Astronomer via Anthropology and History of Science. Hubble's Diverse Universe createspace.com/410482 BlackSunMovie.com
Kaapstad, ZA
7 yrs, 9 mos on Twitter
2,092 22.5%