Astronomers' Favorite Twitter Feeds

Updated: 2017-Mar-22 17:57 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
7 yrs, 11 mos on Twitter
119,267 71.1%
2.profile imagePhil Plait

SCIENCE! I love this stuff. My blog RSS feed: blastr.com/tags/bad-astro…
Bad Astronomy
9 yrs, 11 mos on Twitter
559,368 70.0%
3.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, 10 mos on Twitter
117,674 68.1%
4.profile imageNASA

Explore the universe and discover our home planet with @NASA. We usually post in EDT (UTC-4).
9 yrs, 3 mos on Twitter
22,417,612 67.8%
5.profile imageNeil deGrasse Tyson

Welcome to the Universe
Astrophysics for People in a Hurr...
Welcome to the Universe
New York City
8 yrs, 1 mo on Twitter
7,038,937 60.4%
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, 8 mos on Twitter
3,654,053 57.8%
7.profile imagechrislintott

Astronomer, zookeeper and journalist, based at University of Oxford.
The Cosmic Tourist
Exploring the Mysteries of the Un...
8 yrs, 5 mos on Twitter
25,101 57.0%
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, 6 mos on Twitter
5,091 54.4%
9.profile imageBrian Cox

I tweet about science and, on occasion, politics because I am a citizen (of the UK and the world). Like all thinking people, I am uncertain about many things.
The Earth, with everyone else
8 yrs, 3 mos on Twitter
2,496,023 52.2%
10.profile imageSarah Hörst

Assistant Prof of Planetary Science @JohnsHopkins, Titan evangelist, pomeranian wrangler. Prone to #sciencedancing. Loves socks. Stridently anti-breakfast.
Baltimore, MD, USA
7 yrs, 11 mos on Twitter
24,148 52.2%
11.profile imageMaria Womack

Astrophysicist & planetary scientist @USouthFlorida physics professor. Mostly comets, exoplanets, stars, #astropolicy and #scipolicy Contains no pseudoscience.
Tampa, Florida
7 yrs, 7 mos on Twitter
3,625 51.9%
12.profile imageBarack Obama

Dad, husband, President, citizen.
Washington, DC
10 yrs, 0 mos on Twitter
86,037,365 51.5%
13.profile imageLucianne Walkowicz

astrophysicist @AdlerPlanet. artist. guitarist in @ditchclub. transient bioelectrical phenomenon hurtling through space. (banner credit: @thefeministhour) Ⓥ
Chicago, IL, USA, Earth
6 yrs, 1 mo on Twitter
8,673 51.1%
14.profile imageDavid W. Hogg

astronomy, cosmology, stars, exoplanets, inference, engineering, data analysis, emcee, The Cannon, Astrometry.net, The Tractor, #openscience, #otherpeoplesdata
New York City
5 yrs, 11 mos on Twitter
4,104 51.1%
15.profile imageAstroBetter

Blog and Wiki for professional astronomers.
7 yrs, 11 mos on Twitter
3,933 51.1%
16.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
7 yrs, 10 mos on Twitter
3,073,665 50.0%
17.profile imageMike Brown

Astronomer, planet hunter, Pluto killer, bear whisperer, Finger-wrapped dad.
How I Killed Pluto and Why It Had...
Pasadena, CA
7 yrs, 11 mos on Twitter
46,594 50.0%
18.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, 7 mos on Twitter
1,179,656 49.6%
19.profile imageESA

European Space Agency, keeping you posted on European space activities.
8 yrs, 1 mo on Twitter
690,171 49.6%
20.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, 0 mos on Twitter
30,212 48.9%
21.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, 1 mo on Twitter
1,613,890 48.5%
22.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, 2 mos on Twitter
14,048 48.5%
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
6 yrs, 2 mos on Twitter
5,552 48.5%
24.profile imageKaren Masters ✨✨

Extragalactic astrophysicist @UoPCosmology. @GalaxyZoo @SDSSurveys. Touch a galaxy @TactileUniverse. Vice-President of @popAstro. Mostly tweeting astronomy.
Portsmouth, UK
8 yrs, 0 mos on Twitter
4,887 48.5%
25.profile imageFraser Cain

Publisher of universetoday.com, co-host of astronomycast.com. Named after Asteroid 158092.
Courtenay, British Columbia
10 yrs, 0 mos on Twitter
36,083 48.1%
26.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, 0 mos on Twitter
7,863 48.1%
27.profile imageJulianne Dalcanton

Astrophysicist at the University of Washington. Principal Investigator of the Panchromatic Hubble Andromeda Treasury (PHAT).
5 yrs, 2 mos on Twitter
4,025 47.8%
28.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, 7 mos on Twitter
5,617 47.0%
29.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, 2 mos on Twitter
3,149 47.0%
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, 0 mos on Twitter
76,043 46.7%
31.profile imageNASA Kepler and K2

Trailing Earth around the Sun
8 yrs, 3 mos on Twitter
596,254 45.9%
32.profile imageElon Musk

Tesla, SpaceX, Tunnels & OpenAI
1 AU
7 yrs, 9 mos on Twitter
7,874,897 45.6%
33.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, 1 mo on Twitter
516,407 45.6%
34.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, 1 mo on Twitter
27,512 45.6%
35.profile imageSarah Tuttle

Astrophysicist. Mom. Lunatic. Bionic Woman. Armed with wrenches & a dream. Professor. Vitals read normal but face is murderous. Legally & reputationally risky.
Feminist Dystopian Hellscape
9 yrs, 2 mos on Twitter
7,183 45.6%
36.profile imageAstrotweep: Matthew

Matthew R. Francis • @DrMRFrancis • https://t.co/ccjzLtzGPJ • A new astronomer/planetary scientist tweeting about space each week
The Universe
3 yrs, 2 mos on Twitter
5,735 45.2%
37.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, 7 mos on Twitter
3,581 45.2%
38.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, 1 mo on Twitter
3,232 45.2%
39.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, 4 mos on Twitter
10,245 44.8%
40.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, 4 mos on Twitter
3,699 44.8%
41.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, 3 mos on Twitter
16,856 44.1%
42.profile imageMolly Peeples

Astronomer @STScI who plays with galaxies and gas, real and imagined. #Hubble and #WFIRST pay the bills. She/her.
Baltimore, MD, z=0
4 yrs, 5 mos on Twitter
3,291 44.1%
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, 8 mos on Twitter
270,381 43.7%
44.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, 6 mos on Twitter
3,333 43.7%
45.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
6 yrs, 11 mos on Twitter
9,639 43.3%
46.profile imageNicole Gugliucci

Astronomer. Educator. Professor. Social justice advocate. Geek. Crossfitter. Dog mom. Tweets my own. RT != endorsement.
New Hampshire, USA
8 yrs, 9 mos on Twitter
12,195 43.0%
47.profile imageEmily Rice

Astronomer at @csinews, @GC_CUNY, & @AMNH; #BDNYC & #CUNYAstro; @AstronomyOnTap organizer, 1/2 of @startorialist, & @knitted_bd host ⭐️. Not @djcarlysagan 😜
9 yrs, 6 mos on Twitter
3,119 42.6%
48.profile imageSarcasticRover

Doing a science on the red planet. Not @MarsCuriosity. Tweets relayed by @jfiliatrault.
4th Rock From the Sun
4 yrs, 7 mos on Twitter
320,108 42.2%
49.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, 1 mo on Twitter
9,250 42.2%
50.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, 4 mos on Twitter
439,092 41.5%
51.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, 10 mos on Twitter
2,984 41.5%
52.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, 5 mos on Twitter
139,994 41.1%
53.profile imageChris Hadfield

Canadian Astronaut, back on Earth after living aboard ISS as Commander of Expedition 35. For events and media, please write to [email protected]
6 yrs, 6 mos on Twitter
1,987,018 40.4%
54.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, 7 mos on Twitter
320,428 40.4%
55.profile imageDr. Chanda 🇧🇧

Dr. Prescod-Weinstein: #BlackandSTEM 🏳️‍🌈 @joc4pal astro|physics theory postdoc, gq ♀, Editor in Chief @TheOffingMag. #histsci #STS https://t.co/CTwP5K5W9l
Seattle, WA/Cambridge, MA
8 yrs, 9 mos on Twitter
14,796 40.4%
56.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
6 yrs, 11 mos on Twitter
4,515 40.4%
57.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
7 yrs, 10 mos on Twitter
661,404 39.6%
58.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, 2 mos on Twitter
3,786 39.6%
59.profile imageBill Nye

Everyone you will ever meet knows something you don't.
New York City
7 yrs, 10 mos on Twitter
4,563,312 39.3%
60.profile imageUniverse Today

Universe Today - universetoday.com, a website about space and astronomy. Tweets are probably coming from @fcain
Courtenay, British Columbia
8 yrs, 0 mos on Twitter
230,855 39.3%
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, 0 mos on Twitter
16,584 39.3%
62.profile imageESO

The European Southern Observatory (ESO) is the most productive observatory in the world.
Garching, Germany
8 yrs, 7 mos on Twitter
56,673 38.9%
63.profile imageMichele Bannister

Planetary astronomer, poet, hunter of new and strange worlds. Connoisseur of fuzzy dots. Research Fellow @AstroQUB.
living the life non-sidereal
8 yrs, 0 mos on Twitter
4,638 38.9%
64.profile imageKevin Schawinski

Asst Prof @ETH_en | black holes & galaxies | #citizenscience & @galaxyzoo | deep learning | speaker | space.ml
Zurich, Switzerland
6 yrs, 1 mo on Twitter
2,796 38.9%
65.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, 7 mos on Twitter
1,612,555 38.5%
66.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, 3 mos on Twitter
61,008 38.5%
67.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, 6 mos on Twitter
12,906 38.5%
68.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, 2 mos on Twitter
2,028 38.5%
69.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, 1 mo on Twitter
2,584,894 38.1%
70.profile imageESA Science

Science @ the European Space Agency ESA, keeping you posted on European space science activities.
Noordwijk, The Netherlands
7 yrs, 2 mos on Twitter
245,200 38.1%
71.profile imageCassiniSaturn

Cruising around Saturn, its moons and the magnificent rings
Saturn, Solar System
8 yrs, 9 mos on Twitter
1,159,754 37.8%
72.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, 1 mo on Twitter
541,163 37.8%
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, 1 mo on Twitter
2,149 37.8%
74.profile imageRobert Simpson

Googler, astronomer, TED Fellow. Views are my own.
9 yrs, 11 mos on Twitter
33,194 37.4%
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
7 yrs, 11 mos on Twitter
312,991 37.0%
76.profile imageDavid Spergel

Astrophysicist at Princeton University
Princeton NJ
3 yrs, 2 mos on Twitter
3,563 37.0%
77.profile imageSarah Ballard

Habitable worlds, kindness, fiction, etc. At ~75 km/s*Mpc!
Cambridge, MA
3 yrs, 1 mo on Twitter
2,362 37.0%
78.profile imageShit Academics Say

A social experiment | @prof_nch
3 yrs, 6 mos on Twitter
240,935 36.3%
79.profile imageLucie Green

Royal Society University Research Fellow, Professor of Physics at UCL. Staring at the Sun & beyond. Chief Stargazer @popastro. New book: amazon.co.uk/15-Million-Deg…
6 yrs, 9 mos on Twitter
16,993 36.3%
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, 5 mos on Twitter
15,297 36.3%
81.profile imageMarc Kuchner

PI of Citizen Science projects backyardworlds.org, diskdetective.org, Astrophysicist, Songwriter.
Marketing for Scientists
Greenbelt, MD
8 yrs, 3 mos on Twitter
5,827 36.3%
82.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, 0 mos on Twitter
4,283 35.9%
83.profile imageEd Yong

Science writer at The Atlantic. Author of I CONTAIN MULTITUDES, a New York Times bestseller on animal-microbe partnerships smarturl.it/icontainmultit…
Washington, DC
8 yrs, 1 mo on Twitter
108,761 35.6%
84.profile imageJedidah Isler, PhD

Relentless Dreamer / Astrophysicist / Science Lover / Innovator / TED Fellow / Founder & Host @VanguardSTEM / @NatGeo Emerging Explorer / @TheRoot 100
6 yrs, 7 mos on Twitter
7,789 35.6%
85.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
7 yrs, 11 mos on Twitter
1,765 35.6%
86.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, 5 mos on Twitter
21,534 34.8%
87.profile imageRAS

The Royal Astronomical Society is a learned society representing astronomers and geophysicists in the UK and worldwide. Tweets by @RobertMMassey & @SamNLindsay
Burlington House, London
7 yrs, 0 mos on Twitter
18,456 34.8%
88.profile imageJane MacArthur

Planetary scientist @UniOfLeicester studying martian meteorites & comet dust. @RoyalAstroSoc Council #actuallivingscientist #STEMAmbassador #UKSpace2017 #PS9605
8 yrs, 1 mo on Twitter
5,397 34.8%
89.profile imageHaley Gomez

I'm an Astrophysicist, love books, films astronomy, shoes and dresses.
7 yrs, 3 mos on Twitter
2,421 34.8%
90.profile imageTim Peake

ESA astronaut & test pilot back on Earth after 6 months in space. Tweets are my own. Book out now (proceeds to Prince’s Trust): https://t.co/kCC7qgSvBz
Cologne, Germany
4 yrs, 11 mos on Twitter
1,496,411 34.1%
91.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, 4 mos on Twitter
188,843 34.1%
92.profile imageAmber Straughn

Arkansas native & @NASA astrophysicist for #JWST. Pilot, yogini, homebrewer, Great Dane mom, @PearlJam fan, Razorback 🏈 fan, #FirstGen Not an official NASA acct
5 yrs, 10 mos on Twitter
9,368 34.1%
93.profile imageStuart (V/I)

Maker of things. Co-author of a book cosmos-book.github.io with @chrisenorth. Part time at @ODILeeds ✨⭐🛰📕📊
Leeds, UK
9 yrs, 9 mos on Twitter
8,433 34.1%
94.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, 7 mos on Twitter
4,784 34.1%
95.profile imagePeter Coles

Theoretical astrophysicist, specialising in cosmology. Also interested in jazz, opera, poetry, crosswords, etc. Citizen of Nowhere.
From Cosmos to Chaos
From Cosmos to Chaos
Cardiff, Wales
7 yrs, 5 mos on Twitter
4,343 34.1%
96.profile imageRisa Wechsler

astrophysicist. cosmologist. maker of universes and various kinds of trouble. professor of physics @ stanford
San Francisco
4 yrs, 6 mos on Twitter
2,314 34.1%
97.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, 6 mos on Twitter
1,699 34.1%
98.profile imageJessie Christiansen

Exoplanet scientist, purveyor of fine @NASAKepler data, and science curator at @NASAExoplanetArchive.
Caltech, Pasadena, CA, USA
3 yrs, 2 mos on Twitter
1,581 34.1%
99.profile imageAlan Duffy

Astronomer / astrophysicist. Gets way too excited chatting science on air. A/Professor at @Swinburne making galaxies since 2014. instagram.com/dr.a.duffy
4 yrs, 8 mos on Twitter
11,186 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, 8 mos on Twitter
3,627 33.7%
101.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, 9 mos on Twitter
1,531 33.7%
102.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, 10 mos on Twitter
7,208 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, 7 mos on Twitter
4,780 33.3%
104.profile imageBenneHolwerda

Astronomer at large (mostly harmless). University of Louisville. Opinions & typos obv my own.
the Netherlands
8 yrs, 8 mos on Twitter
1,048 33.3%
105.profile imageDr. Ian O'Neill

Recovering British solar physicist, science writer, digital producer, skeptic, atheist. Previously: @Discovery, @Seeker. @EVEOnline capsuleer. IG: @astroengine
Woodland Hills, Los Angeles
8 yrs, 7 mos on Twitter
35,922 33.0%
106.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, 4 mos on Twitter
16,320 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, 8 mos on Twitter
2,657 33.0%
108.profile imageGeert Barentsen

NASA Astronomer in Silicon Valley • Kepler/K2 Space Telescope GO Director • Thinks Bayesian • Wields Python • Likes Burritos • Does not own a cat.
Mountain View, CA
7 yrs, 10 mos on Twitter
1,921 33.0%
109.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, 9 mos on Twitter
1,019,909 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, 10 mos on Twitter
36,998 32.6%
111.profile imageKarin Sandstrom

Assistant professor of astronomy and physics. Lover of coffee, interstellar dust, California, nerdy stuff. Originally from SW Washington.
San Diego, CA
7 yrs, 11 mos on Twitter
1,594 32.6%
112.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
7 yrs, 10 mos on Twitter
1,440 32.6%
113.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, 7 mos on Twitter
43,014 32.2%
114.profile imageSTARtorialist

Where science meets fashion and scientists get FABULOUS! By professional astronomers @Summer_Ash & @emilylurice.
The Universe
3 yrs, 3 mos on Twitter
2,996 32.2%
115.profile imageRuth Angus

Researching exoplanets & rebugging in python.
Oxford, UK
5 yrs, 10 mos on Twitter
1,277 32.2%
116.profile imageJonathan Amos

BBC Science Correspondent
Cambridge, UK
7 yrs, 2 mos on Twitter
38,864 31.9%
117.profile imageNancy Atkinson

Editor for Universe Today and author of the book 'Incredible Stories From Space'
8 yrs, 9 mos on Twitter
11,205 31.9%
118.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, 0 mos on Twitter
4,621 31.9%
119.profile imageWoman Astro

Promoting astronomy, encouraging women/girls interested in science. WomanAstro.com, etsy.com/shop/WomanAstro
7 yrs, 3 mos on Twitter
4,485 31.9%
120.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, 9 mos on Twitter
2,039 31.9%
121.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, 10 mos on Twitter
1,334,294 31.5%
122.profile imageNYT Science

Science, Environment, Space and Cosmos. Sign up for the Science Times email newsletter: nyti.ms/20Qgv3s
New York, NY
10 yrs, 0 mos on Twitter
1,063,155 31.5%
123.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, 8 mos on Twitter
913,164 31.5%
124.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, 5 mos on Twitter
12,067 31.5%
125.profile image.Astronomy

Conference series about what happens when hackers, astronomers and the web all get together.
Cambridge, MA, USA
8 yrs, 10 mos on Twitter
3,866 31.5%
126.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, 1 mo on Twitter
1,806 31.5%
127.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, 2 mos on Twitter
1,474 31.5%
128.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, 8 mos on Twitter
1,986,202 31.1%
129.profile imageAlan Boyle

Aerospace and science editor @GeekWire. Longtime blogger @CosmicLog. Author of "The Case for Pluto." Links/RTs ≠ endorsements
9 yrs, 1 mo on Twitter
30,332 31.1%
130.profile imageTanya Harrison

🇨🇦Professional Martian. @asunewspace Research Scientist, @exploreplanets web editor, current/former sci team @MarsRovers, @MarsCuriosity & Mars Recon Orbiter.
Toronto / Tempe
8 yrs, 0 mos on Twitter
8,841 31.1%
131.profile imageJennifer L. Hoffman

    Astronomer, associate professor, alto, auntie, ailurophile.  University of Denver
Stellar Polimetry
Denver, CO
3 yrs, 2 mos on Twitter
1,775 31.1%
132.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, 10 mos on Twitter
2,374,117 30.7%
133.profile imageWIRED Science

Bringing the radiothermally generated heat. The team: @KatieMPalmer, @StocktonSays, @MeganMolteni, and @MrMattSimon.
San Francisco, California
9 yrs, 6 mos on Twitter
2,016,821 30.7%
134.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, 1 mo on Twitter
381,077 30.7%
135.profile imageMatt Taylor

I work on the ESA Rosetta mission
4 yrs, 6 mos on Twitter
31,278 30.7%
136.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
5 yrs, 11 mos on Twitter
9,369 30.7%
137.profile imageHannah Wakeford

2017 Giacconi Fellow @STScI | Currently @exo_cast podcaster & @NASAGoddard Fellow | Previously @UniofExeter PhD | Scuba Diving, Hubble & #scicomm are my life
5 yrs, 6 mos on Twitter
1,596 30.7%
138.profile imageAstroJJE

Astrophysicist studying exploding binary stars. Lecturer, Public Speaker, Sci-fi addict, feminist, trans/genderfluid, prefers "JJ" & them/they pro-nouns.
Auckland, New Zealand
3 yrs, 11 mos on Twitter
1,567 30.7%
139.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 mo on Twitter
899,061 30.4%
140.profile imageSky & Telescope

The Essential Guide to Astronomy | We provide the world's leading compendium of information about the science and hobby of astronomy.
Cambridge, Mass.
8 yrs, 0 mos on Twitter
84,249 30.4%
141.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, 0 mos on Twitter
3,204 30.4%
142.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)
2,304 30.4%
143.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, 6 mos on Twitter
2,242 30.4%
144.profile imageDan F-M

I write code for good & astrophysics.
5 yrs, 7 mos on Twitter
1,764 30.4%
145.profile imageProf. Jorge Moreno

Astrophysicist | Visiting Scholar at Harvard | AAS CSMA Chair | Assistant Professor at Cal Poly Pomona
Cambridge, MA
2 yrs, 7 mos on Twitter
958 30.4%
146.profile imageSPACE.com

News coverage and conversation about space science, astronomy and exploration. Part of @Purch
8 yrs, 8 mos on Twitter
531,952 30.0%
147.profile imageESA Operations

From Earth orbit to deep space: sharing the excitement of real-time mission operations at ESA #ESOC50 September 2017
Darmstadt, Germany
8 yrs, 4 mos on Twitter
219,700 30.0%
148.profile imageKaren James

Wearer of the following hats: scientist putting DNA sequencing to work 4 environmental research & conservation, outdoorswoman, astronaut hopeful, feminist, wool
Bar Harbor, Maine, USA
8 yrs, 4 mos on Twitter
24,595 30.0%
149.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, 7 mos on Twitter
21,773 30.0%
150.profile imageMika McKinnon

Field geophysicist, disaster researcher, scifi science consultant, science writer, public speaker, irrepressible educator.
7 yrs, 9 mos on Twitter
12,526 30.0%
151.profile imageMeg Rosenburg

planetary science PhD | #scicomm & #histSTM | freelancer, filmmaker, podcaster | megrosenburg.com | And what you do, do it unfeignedly.
Somerville, MA
4 yrs, 3 mos on Twitter
4,288 30.0%
152.profile imageJosh Peek

Statements in my profile may be false.
8 yrs, 1 mo on Twitter
982 30.0%
153.profile imageScott Kelly

Houston, TX
7 yrs, 7 mos on Twitter
3,090,187 29.6%
154.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
7 yrs, 11 mos on Twitter
144,656 29.6%
155.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
6 yrs, 11 mos on Twitter
27,834 29.6%
156.profile imageScience Friday

Brain fun for curious people. Hosted by @iraflatow, from @PRI.
New York, New York
8 yrs, 5 mos on Twitter
750,672 29.3%
157.profile imagerealscientists

Real science from real scientists, writers, communicators, artists & clinicians. Brain Week: Chemist César A. Urbina-Blanco | @Cesapo
4 yrs, 1 mo on Twitter
47,424 29.3%
158.profile imageBlackPhysicists

Arlington, VA and Worldwide
7 yrs, 9 mos on Twitter
15,289 29.3%
159.profile imageWill Gater

Astronomer, journalist & space geek willgater.com | willgaterastrophotography.com
8 yrs, 10 mos on Twitter
7,298 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
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The Big Questions in Science
8 yrs, 3 mos on Twitter
5,674 29.3%
161.profile imageAstro Union

Founded in 1919, the International Astronomical Union (IAU) promotes and safeguards the science of astronomy through international cooperation.
2 yrs, 9 mos on Twitter
4,213 29.3%
162.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
Astronomical Measurement
Auld Reekie
7 yrs, 0 mos on Twitter
1,897 29.3%
163.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, 9 mos on Twitter
421,759 28.9%
164.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, 5 mos on Twitter
196,596 28.9%
165.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, 1 mo on Twitter
32,598 28.9%
166.profile imageESA Gaia

Science with 1 billion objects in three dimensions
8 yrs, 1 mo on Twitter
13,434 28.9%
167.profile imageJess Shanahan

Astrophysicist, lover of evolang, & queer feminist. Cofounder of @AAS_WGAD. I write on #disability & review games for ICXM! #disabledandSTEM GT: Dom Resistance
Washington, DC
5 yrs, 9 mos on Twitter
2,723 28.9%
168.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, 7 mos on Twitter
2,458 28.9%
169.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, 6 mos on Twitter
2,047 28.9%
170.profile imageBecky Smethurst

Doctor of Astrophysics | @galaxyzoo | @dotastronomy | @sixtysymbols | University of Nottingham | FameLab | #scicomm | Enthusiasm reigns here!
Oxford, UK
7 yrs, 11 mos on Twitter
1,137 28.9%
171.profile imagegalaxyzoo

It's Galaxy Zoo!
8 yrs, 2 mos on Twitter
13,294 28.5%
172.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, 1 mo on Twitter
3,462 28.5%
173.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, 9 mos on Twitter
3,158 28.5%
174.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, 8 mos on Twitter
1,936 28.5%
175.profile imageAdam Burgasser

astrophysicist, professor, and preferably in the water.
on a plane, or San Diego
6 yrs, 7 mos on Twitter
1,138 28.5%
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, 2 mos on Twitter
95,534 28.1%
177.profile imageLIGO

I am the Laser Interferometer Gravitational-wave Observatory. I look for space-time ripples.
Livingston, LA and Hanford, WA
8 yrs, 9 mos on Twitter
30,842 28.1%
178.profile imageCorey S. Powell

Science editor at @aeonmag. Contributing editor and blogger at @discovermag. Contributing editor at @AmSciMag. Science-curious.
8 yrs, 0 mos on Twitter
26,796 28.1%
179.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, 9 mos on Twitter
26,116 28.1%
180.profile imageAmy Mainzer

Jet Propulsion Laboratory
4 yrs, 1 mo on Twitter
24,409 28.1%
181.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, 9 mos on Twitter
2,086 28.1%
182.profile image(((Stephen S.)))

Professor of Astronomy at the Open University, roped into various OU/BBC things too. The views here do not necessarily blah blah.
An Introduction to Galaxies and C...
Observational Cosmology
Observational Cosmology
8 yrs, 0 mos on Twitter
1,913 28.1%
183.profile imageHubble

The official Twitter account for the NASA Hubble Space Telescope. #SpotHubble
Goddard Space Flight Center
9 yrs, 0 mos on Twitter
2,528,746 27.8%
184.profile imageChris North

Ogden Science Lecturer & astronomer at @CardiffPHYSX. Co-author of cosmos-book.github.io and other books, semi-regular broadcaster. All comments are my own.
How to Read the Solar System
Cardiff (normally)
7 yrs, 5 mos on Twitter
4,923 27.8%
185.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, 2 mos on Twitter
3,499 27.8%
186.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, 7 mos on Twitter
3,324 27.8%
187.profile imageJo Dunkley

Professor of Physics and Astrophysics at Princeton
Princeton, NJ
5 yrs, 5 mos on Twitter
1,673 27.8%
188.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, 1 mo on Twitter
1,134 27.8%
189.profile imageMichelle Collins

Astrophysics Lecturer @surreyastro, working on Local Group galaxies. Soft spot for Andromeda. Keen runner therunningastronomer.com
Guildford, England
7 yrs, 10 mos on Twitter
1,000 27.8%
190.profile imageErik Tollerud

Astrophysicist, Python coder, and general lover of nature in all its forms.
Baltimore, MD
7 yrs, 9 mos on Twitter
850 27.8%
191.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, 9 mos on Twitter
15,565,975 27.4%
192.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, 0 mos on Twitter
1,001,202 27.4%
193.profile imageAndy Rivkin

Planetary astronomer on #TeamAsteroid; Gedankenband member and guitarist; Persistently Obstreperous.
8 yrs, 9 mos on Twitter
2,804 27.4%
194.profile imageJonathan Pritchard

Imperial astrophysicist and bewildered vagabond. SKA enthusiast. (opinions mine, not employer's)
Richmond, London
6 yrs, 2 mos on Twitter
1,212 27.4%
195.profile imageEmily Levesque

The real exciting sound in science is not, 'Eureka!' It's, 'Wow, that's weird.'
Seattle, WA
7 yrs, 1 mo on Twitter
918 27.4%
196.profile imageInstitute of Physics

Official Twitter account for the Institute of Physics (IOP). facebook.com/instituteofphy…
7 yrs, 10 mos on Twitter
153,612 27.0%
197.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, 7 mos on Twitter
85,121 27.0%
198.profile imageDNLee

#NewProf, Mammalogist, Diversity & Access to STEM, Unapologetically Intersectional, Mama Panyabuku, TED Fellow
Midwest, US; Tanzania, Africa
6 yrs, 7 mos on Twitter
21,322 27.0%
199.profile imageDr Lisa Harvey-Smith

Astrophysicist, Ultramarathoner, Speaker, Sometimes on telly, #LifeofaUniverse, #StargazingABC, #LifeOnTheLine, @AstroCourses, Gooner, Vego, Friend of Dorothy
5 yrs, 4 mos on Twitter
4,071 27.0%
200.profile imageRadio Astrology

Opening new windows in the prediction spectrum. Astrology at long wavelengths.
In the stars (and the ISM)
5 yrs, 4 mos on Twitter
3,010 27.0%
201.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, 3 mos on Twitter
2,633 27.0%
202.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, 9 mos on Twitter
1,597 27.0%
203.profile imageJohanna

Astronomer, runner, educator, feminist, vegan, baker
Pasadena, CA
3 yrs, 2 mos on Twitter
1,220 27.0%
204.profile imageStephen Fry

Actor and writer currently working on new TV comedy @GreatIndoorsCBS Instagram – stephenfryactually 🏳️‍🌈
Los Angeles, CA
8 yrs, 8 mos on Twitter
12,480,506 26.7%
205.profile imageHubbleTelescope

News from the Hubble Space Telescope
8 yrs, 9 mos on Twitter
109,845 26.7%
206.profile imageJason Major

Space. Planets. NASA. Science. Rocketry. Astronomy. Democracy. Atheism. Humanism. Environmentalism. Coffee. #ScienceNotSilence #RESIST
Warwick, RI
7 yrs, 2 mos on Twitter
14,653 26.7%
207.profile imageKimberly EnnicoSmith

“Second star to the right and straight on 'til morning."
Boulder, CO, Mountain View, CA
9 yrs, 1 mo on Twitter
3,635 26.7%
208.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, 7 mos on Twitter
2,959 26.7%
209.profile imageJames Davenport

Astronomy PhD, Postdoctoral Fellow, blogger, casual data analyst, Seattleite. All opinions are my own.
4 yrs, 10 mos on Twitter
1,536 26.7%
210.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
7 yrs, 11 mos on Twitter
933,591 26.3%
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
2 yrs, 7 mos on Twitter
68,579 26.3%
212.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, 9 mos on Twitter
6,711 26.3%
213.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, 0 mos on Twitter
6,240 26.3%
214.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, 5 mos on Twitter
5,561 26.3%
215.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, 9 mos on Twitter
2,743 26.3%
216.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, 4 mos on Twitter
2,386 26.3%
217.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, 0 mos on Twitter
1,777 26.3%
218.profile imageAwesome_Ph

The most awesome(st) of Astro-ph every day! Few one line summaries of papers on the ArXiV that caught my attention. Brought to you by the Extronomer.
5 yrs, 10 mos on Twitter
1,732 26.3%
219.profile imageMike Massimino

Former @NASA astronaut, Professor at Columbia @CUSEAS, Sr. Advisor for Space Programs @IntrepidMuseum, Author of #Spaceman
New York, NY
7 yrs, 11 mos on Twitter
1,354,091 25.9%
220.profile imageHUBBLE

The official feed of ESA/Hubble. The Hubble Space Telescope is the space-based observatory which has revolutionised modern astronomy.
6 yrs, 10 mos on Twitter
353,857 25.9%
221.profile imagePHD Comics

Life (or the lack thereof) in Academia.
8 yrs, 8 mos on Twitter
144,512 25.9%
222.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, 9 mos on Twitter
46,490 25.9%
223.profile imageEllen Stofan

Planetary geologist, STEM advocate, former Chief Scientist of NASA
Exploring Venus as a Terrestrial ...
5 yrs, 1 mo on Twitter
7,237 25.9%
224.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, 3 mos on Twitter
1,477 25.9%
225.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, 4 mos on Twitter
45,041 25.6%
226.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, 0 mos on Twitter
15,651 25.6%
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, 3 mos on Twitter
14,200 25.6%
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
6 yrs, 5 mos on Twitter
5,535 25.6%
229.profile imageJen Gupta

Space nerd. @UoPCosmology Astrophysics Outreach Officer. @WinSciFest Director. @SeldomSirius host. Active Galaxies were my first love.
Winchester, UK
7 yrs, 7 mos on Twitter
2,480 25.6%
230.profile imageAstropy

This is the official twitter account for the Astropy project.
5 yrs, 8 mos on Twitter
1,764 25.6%
231.profile imageAsteroid Watch

The Center for Near Earth Object Studies at JPL characterizes and monitors orbits of asteroids & comets. Part of NASA's Planetary Defense Coordination Office.
Pasadena, California
8 yrs, 0 mos on Twitter
1,343,609 24.8%
232.profile imageBBC Science News

News, features and analysis from the BBC Science & Environment news desk.
London, England
10 yrs, 2 mos on Twitter
1,327,349 24.8%
233.profile imageElise Andrew

just a liberal, freckle-faced slut - some dude on Twitter. Also, I Fucking Love Science.
London, England
4 yrs, 0 mos on Twitter
67,794 24.8%
234.profile imageSTFC

Science and Technology Facilities Council: Pioneering science for a better future. See @STFC_B2B for business news.
7 yrs, 6 mos on Twitter
13,568 24.8%
235.profile imageKeri Bean

Engineer @NASAJPL on @NASA_Dawn + @MarsRovers, R2 builder @R2Keri @KN_3X, @SunriderBase @RebelLegion Rey, Jedi Knight, @JeffAMcGee's wife, TX Aggie, Hufflepuff
Pasadena, CA
5 yrs, 10 mos on Twitter
6,145 24.8%
236.profile imageJackie Faherty

Astrophysicist at @AMNH, alumna of @CarnegieAstro. Enthusiast for bringing the cosmos to the public (check out @backyardworlds). #womeninscience #BDNYC
8 yrs, 0 mos on Twitter
2,973 24.8%
237.profile imageSloan Digital Sky

Tweeting about mapping the Universe @APOGEEsurvey @eBOSSurvey @MaNGASurvey
Apache Point Observatory.
4 yrs, 1 mo on Twitter
2,178 24.8%
238.profile imageAAS Executive Office

The mission of the American Astronomical Society (AAS) is to enhance & share humanity's scientific understanding of the universe. Instagram: @AAS_Office
Washington, DC, USA
6 yrs, 4 mos on Twitter
1,954 24.8%
239.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, 1 mo on Twitter
1,087 24.8%
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, 0 mos on Twitter
28,318 24.4%
241.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, 6 mos on Twitter
24,530 24.4%
242.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, 5 mos on Twitter
10,600 24.4%
243.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, 4 mos on Twitter
4,112 24.4%
244.profile imageDerek Fox

Research astronomer and faculty member at Penn State University. This is a personal Twitter account.
8 yrs, 0 mos on Twitter
1,721 24.4%
245.profile imageAdrian Price-Whelan

astrophysics, galaxy dynamics github.com/adrn facebook.com/operatormusicb…
Princeton, NJ
5 yrs, 9 mos on Twitter
1,060 24.4%
246.profile imageHillary Clinton

Wife, mom, grandma, women+kids advocate, FLOTUS, Senator, SecState, hair icon, pantsuit aficionado, 2016 presidential candidate.
New York, NY
3 yrs, 11 mos on Twitter
13,773,050 24.1%
247.profile imageStephen Colbert

8 yrs, 6 mos on Twitter
12,873,964 24.1%
248.profile imageNASA Kennedy / KSC

Official Tweets from NASA's Kennedy Space Center
Florida, USA
8 yrs, 5 mos on Twitter
1,241,661 24.1%
249.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, 5 mos on Twitter
9,359 24.1%
250.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, 8 mos on Twitter
4,332 24.1%
251.profile imageJames Bullock

Professor of Physics & Astronomy. Cosmologist, Anteater, and Buckeye.
California, USA
7 yrs, 7 mos on Twitter
2,156 24.1%
252.profile imageRay Jayawardhana

Astronomer, Explorer, Writer, Speaker. Author of "Strange New Worlds" and "Neutrino Hunters"
Neutrino Hunters
Neutrino Hunters
Strange New Worlds
6 yrs, 0 mos on Twitter
1,465 24.1%
253.profile imageJoss Bland-Hawthorn

All things novel, astrophysical, mathematical, technological.
The Origin of the Galaxy and Loca...
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Sydney, Australia
2 yrs, 9 mos on Twitter
1,279 24.1%
254.profile imageJoanna Barstow

RAS Research Fellow and Planetary Scientist at UCL, STEM Ambassador, sci outreacher, FRAS, ScienceGrrl. Christian, singer, bookworm.
3 yrs, 6 mos on Twitter
1,075 24.1%
255.profile imageBenjamin Pope

Astronomer, Bayesian, foodie
Oxford, UK
4 yrs, 2 mos on Twitter
1,031 24.1%
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.
Mountain View, California
6 yrs, 7 mos on Twitter
1,010 24.1%
257.profile imageGrant Tremblay

Observational astrophysicist and @NASA Einstein Fellow @Yale. Heart remains in Maine. Views my own.
New Haven
8 yrs, 0 mos on Twitter
840 24.1%
258.profile imageNate Silver

Editor-in-Chief, @FiveThirtyEight. Author, The Signal and the Noise (amzn.to/QdyFYV). Sports/politics/food geek.
New York
8 yrs, 6 mos on Twitter
2,134,911 23.7%
259.profile imageNational Science Fdn

Where Discoveries Begin. Social media policy: bit.ly/smpnsf
Arlington, Virginia
8 yrs, 6 mos on Twitter
1,026,258 23.7%
260.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, 7 mos on Twitter
438,090 23.7%
261.profile imageAstronomy Magazine

The best-selling astronomy magazine
Our tiny corner of the cosmos
8 yrs, 0 mos on Twitter
147,943 23.7%
262.profile imageBBC Stargazing Live

Join Prof Brian Cox and Dara O Briain at Australia's Siding Spring Observatory for cosmic news, views and special guests. 28, 29, 30 March, 8pm @BBCTwo 🔭
5 yrs, 4 mos on Twitter
94,777 23.7%
263.profile imageAction Scientist

TV host @MeteoriteMen | Author | Adventurer | 2 x Emmy winner | @NSS Board of Governors | @TEDx speaker | @edfringe performer | Exec producer @GaimanMovie
From the Earth to the Moon
7 yrs, 2 mos on Twitter
13,687 23.7%
264.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, 5 mos on Twitter
13,507 23.7%
265.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, 8 mos on Twitter
2,824 23.7%
266.profile imageLSST

The widest, fastest, deepest eye of the new digital age.
Cerro Pachon, Chile
8 yrs, 7 mos on Twitter
2,402 23.7%
267.profile imageIndigo ⭐️ Xiang

May the odds be ever in our favour ⭐️ Sanguine astrophysicist and drinker of many teas ☕️ Will test hypotheses for food 🏴‍☠️ @Scientists4EU #AntiFa R=V/I
7 yrs, 11 mos on Twitter
1,768 23.7%
268.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, 10 mos on Twitter
1,437 23.7%
269.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, 9 mos on Twitter
1,357,185 23.3%
270.profile imageDr. Brian May

Rocket Ship Builder
4 yrs, 5 mos on Twitter
381,570 23.3%
271.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, 10 mos on Twitter
234,039 23.3%
272.profile imageHenna

Founder at Universe Simplified (@UnivSimplified), Proponent of Disrupt Education and Maker Spaces, Astronomy Enthusiast, Solo Backpacker
7 yrs, 9 mos on Twitter
6,752 23.3%
273.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, 0 mos on Twitter
3,038 23.3%
274.profile imageDay 61/?

враг народа
40.136397, -105.107532
8 yrs, 1 mo on Twitter
1,961 23.3%
275.profile imageAnais Rassat

Science. Interested in tech, innovation & science policy. Knowledge Transfer @CERN. Formerly @EPFL, @CEASaclay, @UCL . Celebrating #Einstein100. TCK.
7 yrs, 1 mo on Twitter
1,861 23.3%
276.profile imageSAO/NASA ADS

6 yrs, 3 mos on Twitter
1,623 23.3%
277.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, 0 mos on Twitter
1,020 23.3%
278.profile imageCaitlin Casey

Astronomer and Assistant Professor at the University of Texas at Austin.
Austin, TX
3 yrs, 1 mo on Twitter
915 23.3%
279.profile imageWilliam Keel

Astronomer, galaxy observer, trombonist, Galaxy Zoo team member, husband, father, employee of cats
Tuscaloosa, AL, USA
7 yrs, 1 mo on Twitter
851 23.3%
280.profile imageDara Ó Briain

Infamous Brit-Licker; also been known to hand out free puppies. Currently touring new show Crowd Tickler
Beneath your wings.
7 yrs, 9 mos on Twitter
2,446,149 23.0%
281.profile imageMarch for Science

The March for Science champions robustly funded and publicly communicated science as a pillar of human freedom and prosperity. March with us on April 22, 2017.
Washington, DC
1 mo on Twitter
339,529 23.0%
282.profile imageSpaceflight Now

The best source for space news
Cape Canaveral, Florida
8 yrs, 4 mos on Twitter
314,781 23.0%
283.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.
6 yrs, 11 mos on Twitter
9,421 23.0%
284.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, 1 mo on Twitter
8,653 23.0%
285.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, 4 mos on Twitter
3,471 23.0%
286.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, 8 mos on Twitter
2,074 23.0%
287.profile imageEdward Gomez 🤖

Astronomer, coder, and web technology enthusiast. Believe everyone can be a scientist if they ask more questions.
Cardiff, UK
8 yrs, 9 mos on Twitter
1,672 23.0%
288.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, 9 mos on Twitter
1,047 23.0%
289.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, 10 mos on Twitter
985 23.0%
290.profile imageCaryl Gronwall

Astronomer at Penn State University
State College, PA
6 yrs, 0 mos on Twitter
797 23.0%
291.profile imageCarl Zimmer

@nytimes columnist, @statnews national correspondent Talks: prhspeakers.com/speaker/carl-z… Newsletter tinyletter.com/carlzimmer carl -at- carlzimmer dot com
9 yrs, 0 mos on Twitter
267,600 22.6%
292.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, 2 mos on Twitter
112,000 22.6%
293.profile imageMESSENGER

First spacecraft to orbit Mercury.
In Mercury orbit.
8 yrs, 6 mos on Twitter
78,276 22.6%
294.profile imageSci Curious

#science writer Bethany Brookshire. Staff education Writer @SNStudents, Writer at @ScienceNews. Opinions my own. In my free time, I run long distances.
Washington, DC
7 yrs, 11 mos on Twitter
54,326 22.6%
295.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, 2 mos on Twitter
28,663 22.6%
296.profile imageRemco Timmermans

Aspiring to be the best in social media for space | CEO @SpaceUpConf | Owner @SeventyMedia | @ISU_SSP #SSP17 and #SSP18 Faculty | Team @dieAstronautin
Nijmegen, Netherlands
8 yrs, 1 mo on Twitter
21,779 22.6%
297.profile imageKeaton S

Casting Producer in Documentary-style commercials. Work with OSCAR nom Director @anthonywonke. Complete SpaceNerd & have made lots of BBC Science shows. #CHD
London / Staffs / Birmingham
7 yrs, 5 mos on Twitter
3,932 22.6%
298.profile imagePaul Sutherland

Space writer. Author of the Philip's Essential Guide to Space. I run the website Skymania.com. Mining rights available on my asteroid, 6726 Suthers.
Walmer, Kent
9 yrs, 7 mos on Twitter
3,094 22.6%
299.profile imageSuzanne Aigrain

astronomer | exoplaneteer | bayesian | poet
3 yrs, 6 mos on Twitter
572 22.6%
300.profile imageAstronomy Now

The UK's best and longest running astronomy magazine!
8 yrs, 0 mos on Twitter
93,323 22.2%