Astronomers' Favorite Twitter Feeds

Updated: 2019-Jul-11 00:47 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/cosmologist, occasional freelance science writer, connoisseur of cosmic catastrophes
Raleigh, NC
10 yrs, 2 mos on Twitter
318,559 73.3%
2.profile imageNASA

Explore the universe and discover our home planet with @NASA. We usually post in EDT (UTC-4)
11 yrs, 6 mos on Twitter
31,834,264 66.9%
3.profile imageEmily Lakdawalla

Senior Editor & Planetary Evangelist, The Planetary Society. Planetary scientist. Asteroid 274860. Views are my own & not those of employer.
Pasadena, CA
11 yrs, 1 mo on Twitter
157,823 66.0%
4.profile imagePhil Plait

SCIENCE! I love this stuff. My Bad Astronomy blog: syfy.com/badastronomy I use "likes" for bookmarks. No endorsement implied.
12 yrs, 2 mos on Twitter
614,364 65.5%
5.profile imagechrislintott

Astronomer, zookeeper and journalist, based at University of Oxford.
10 yrs, 9 mos on Twitter
29,962 57.0%
6.profile imageNeil deGrasse Tyson

New York City
10 yrs, 5 mos on Twitter
13,332,647 56.5%
7.profile imageAstrotweeps: Thomas

Thomas Connor • @Thomas_Connor • https://t.co/xi86iPlvER • A new astronomer/planetary scientist tweeting about space each week.
The Universe
5 yrs, 6 mos on Twitter
10,356 54.6%
8.profile imageSarah Kendrew

Astronomer with the European Space Agency. Based at the Space Telescope Science Institute in Baltimore. Astronomy, running, bikes. Opinions my own. 🇧🇪🇬🇧
11 yrs, 9 mos on Twitter
8,802 53.9%
9.profile imageBarack Obama

Dad, husband, President, citizen.
Washington, DC
12 yrs, 4 mos on Twitter
107,036,482 53.2%
10.profile imageSarah Tuttle

Astrophysicist. We're not going to be shady, just fierce. Professor. Vitals read normal but face reads murderous. 100% problematic. She/her.
Here, I guess.
11 yrs, 5 mos on Twitter
13,604 53.2%
11.profile imageCuriosity Rover

Your friendly neighborhood NASA Mars rover. Exploring the Red Planet since 2012. Team headquartered at NASA's Jet Propulsion Laboratory 🚀 @NASAJPL
Gale Crater, Mars
10 yrs, 11 mos on Twitter
4,016,034 52.7%
12.profile imageDr./Prof. Sarah Hörst

Asst Prof of Planetary Sci @JohnsHopkins and Titan evangelist. “I try not to hope and fail utterly” [email protected] she/her https://t.co/KTdjav31lU
Baltimore, MD, USA
10 yrs, 3 mos on Twitter
53,401 52.5%
13.profile imageLucianne Walkowicz

Astronomer @AdlerPlanet, co-founder @JustSpaceOrg, multimedia artist. Ethics of Mars exploration, exoplanets, social justice. Opinions my own.
Chicago, IL
8 yrs, 4 mos on Twitter
15,938 52.2%
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
8 yrs, 3 mos on Twitter
7,022 52.2%
15.profile imageAstroBetter

Blog and Wiki for professional astronomers.
10 yrs, 2 mos on Twitter
5,275 51.8%
16.profile imageJulianne Dalcanton

Astrophysicist at the University of Washington. Principal Investigator of the Panchromatic Hubble Andromeda Treasury (PHAT).
7 yrs, 6 mos on Twitter
7,387 51.5%
17.profile imageAstronomy Picture Of The Day

Each day a different image of our universe along with a brief explanation. For issues with this account contact @astronomyblog otherwise apod.nasa.gov/apod/lib/apsub…
11 yrs, 10 mos on Twitter
1,286,239 51.1%
18.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
8 yrs, 6 mos on Twitter
9,129 51.1%
19.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
10 yrs, 5 mos on Twitter
28,813 50.1%
20.profile imageBryan Gaensler 📡🧲

Astronomer, Director of @DunlapInstitute at @UofT, @LRP2020 cochair. Sci-fi connoisseur, rugby devotee, displaced Antipodean, perplexed parent. Opinions ∉ @UofT
Toronto, Canada  he/him
9 yrs, 11 mos on Twitter
10,226 50.1%
21.profile imageProf. Karen Masters 💫⭐️✨

Professor of astrophysics @haverfordedu. Investigating galaxies with @GalaxyZoo @SDSSurveys. Touch a galaxy @TactileUniverse. Mostly tweeting astronomy. British
Ardmore, PA
10 yrs, 4 mos on Twitter
8,433 48.7%
22.profile imageESA

European Space Agency, keeping you posted on European space activities.
10 yrs, 4 mos on Twitter
970,384 48.5%
23.profile imageSpaceX

SpaceX designs, manufactures and launches the world’s most advanced rockets and spacecraft
Hawthorne, CA
10 yrs, 2 mos on Twitter
8,662,032 48.2%
24.profile imageBrian Cox

Touring the world in 2019, mainly talking about cosmology, quantum mechanics, black holes and the value of our civilisation.
The Earth, with everyone else
10 yrs, 7 mos on Twitter
2,918,314 47.5%
25.profile imageMolly Peeples

Astronomer in the Science Policies Group @STScI playing with galaxies & gas, real & fake. #Hubble, #JWST, #WFIRST pay the bills; opinions are my own. She/her.
Baltimore, MD, z=0
6 yrs, 9 mos on Twitter
7,858 47.5%
26.profile imageMaria Womack

Astrophysicist #observingrun #scipolicy #climatecrisis No pseudoscience. Looking up and out!
9 yrs, 11 mos on Twitter
4,533 47.3%
27.profile imageFraser Cain

Publisher of universetoday.com, co-host of astronomycast.com. Named after Asteroid 158092.
Courtenay, British Columbia
12 yrs, 3 mos on Twitter
40,734 47.0%
28.profile imageDr. Jessie Christiansen

NASA Research Scientist | #exoplaneteer | #WomenInStem advocate | Science curator at @NASAExoArchive | Usual nerd grab-bag of fandoms | She/her
Caltech, Pasadena, CA, USA
5 yrs, 6 mos on Twitter
10,779 47.0%
29.profile imageKelle Cruz

Astronomy Prof at @Hunter_College, @AMNH, and #BDNYC. Liveable streets. @Spurs. Founder, editor of @AstroBetter & CEO of @ScienceBetter. Coordinator of @Astropy
New York, NY
10 yrs, 5 mos on Twitter
5,223 46.6%
30.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.
10 yrs, 5 mos on Twitter
2,829,210 46.3%
31.profile imageSean Carroll

Physicist at Caltech. Author of The Big Picture and other books. Host of #MindscapePodcast. Married to @JenLucPiquant. In favor of truth and kindness.
Los Angeles
10 yrs, 4 mos on Twitter
234,947 46.1%
32.profile imageDr./Prof. Renée Hložek

South African cisgender, bisexual woman Assist. Astrophysics Prof., Rhodes scholar (and lover of loud karaoke), Senior TED Fellow. Feminist scientist. She/her
Toronto, Ontario
9 yrs, 11 mos on Twitter
6,123 46.1%
33.profile imageAlex Parker

Planetary astronomer and artist exploring the origin and history of our solar system. Director of @ESPRESSO_SSERVI, keeper of @RoboHiveTweets.
Boulder, Colorado
10 yrs, 6 mos on Twitter
30,526 45.9%
34.profile image★ dr amanda bauer ★

Head of Education & Public Outreach for LSST. Music creator. Co-host of #CosmicVertigo space podcast abc.net.au/radionational/…
Tucson, AZ
11 yrs, 3 mos on Twitter
9,639 45.2%
35.profile imageMike Brown

Astronomer, planet hunter, Pluto killer, bear whisperer, Finger-wrapped dad. Dangerous secularist.
Pasadena, CA
10 yrs, 3 mos on Twitter
63,539 44.9%
36.profile imageProf. Emily Rice, Ph.D.

Astronomer at @macaulayhonors, @GC_CUNY, @AMNH, #BDNYC, #CUNYAstro; HQ for @AstronomyOnTap; 1/2 of @startorialist; host ⭐️ of @knitted_bd. Not @djcarlysagan 😜
Occupied Lunaape Land (NYC)
11 yrs, 9 mos on Twitter
5,757 44.4%
37.profile imageESO

The European Southern Observatory is the most productive observatory in the world. We design, build & operate some of the most advanced telescopes in the world.
Garching, Germany
10 yrs, 10 mos on Twitter
90,644 44.0%
38.profile imageMeg Urry

Yale physics prof, likes supermassive black holes, teaching, writing, increasing participation in STEM, my family
Yale University
7 yrs, 8 mos on Twitter
4,515 43.7%
39.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
9 yrs, 7 mos on Twitter
24,359 43.5%
40.profile imageMC Stardust ✨ Inclusion Rider 4 Life

Astrophysicist by day and all around rock-it scientist whenever I get my act together. Tweets are my own opinions. Intersectional or GTFO. 1/2 of @startorialist
Moon/New York City
9 yrs, 3 mos on Twitter
13,090 43.3%
41.profile imageMichele Bannister

Planetary astronomer, poet, hunter of new and strange worlds. Connoisseur of fuzzy dots of light. Asteroid (10463). PDRF @AstroQUB; lecturer @ucnz from Feb 2020
she/her; living the life non-sidereal
10 yrs, 4 mos on Twitter
8,616 43.3%
42.profile imageBrooke Simmons

Distracted astrophysicist researching galaxies & black holes; on @galaxyzoo & @the_zooniverse teams. Also planetaryresponsenetwork.org lead. (She/her)
United Kingdom
10 yrs, 9 mos on Twitter
8,567 43.0%
43.profile imageAlyssa A. Goodman

Astronomy Professor at Harvard, CoDirector of Science at Radcliffe Institute. Loves data, visualization, Universe, education, people. Not in that order.
10 yrs, 5 mos on Twitter
3,842 42.8%
44.profile imageElon Musk

10 yrs, 1 mo on Twitter
27,299,294 42.6%
45.profile imageDr Pamela L Gay

Communicating astro & life 1 sidereal day at a time. All opinions & ideas are my own. Support on Patreon.com/starstryder & paypal.me/starstryder
Edwardsville, IL
11 yrs, 5 mos on Twitter
40,053 42.6%
46.profile imageNASA Kepler and K2

Launched in March 2009, Kepler is NASA's first spacecraft to detect Earth-size planets in the just-right Goldilocks habitable zone of other stars.
Trailing Earth around the Sun
10 yrs, 7 mos on Twitter
628,219 42.1%
47.profile imageNASA Webb Telescope

NASA's James Webb Space Telescope will give us an amazing look at the universe! It will launch in 2021. RT, likes, and/or @mentions do not imply endorsement.
Greenbelt, Maryland
10 yrs, 3 mos on Twitter
403,454 42.1%
48.profile imageProf. Abel Méndez

Planetary Astrobiologist and Director of the @PlanetaryHabLab. Looking at habitable worlds from the Arecibo Observatory. #exoplanets #astrobiology #habitability
Arecibo, Puerto Rico
9 yrs, 7 mos on Twitter
14,767 42.1%
49.profile imageDr Rachael Livermore

Astrophysicist | Science Communicator. She/her. Videos of my public talks at bit.ly/SciTalks
London, England
11 yrs, 0 mos on Twitter
7,434 42.1%
50.profile imageAlessondra Springmann

asteroids, comets, sounding rockets, @AreciboRadar/🇵🇷 love, cacti, geology, autoimmune disease, puns, cat herding, rants, 小惑星レーダー天文学者, she/her
Chukson / Tucson, AZ
9 yrs, 2 mos on Twitter
8,413 41.6%
51.profile imageDr JJ Eldridge

NZ theoretical astrophysicist studying exploding binary stars. Lecturer, Speaker, Sci-fi addict, feminist, enby trans femme. Pronouns: them/they.
Auckland, New Zealand
6 yrs, 2 mos on Twitter
6,695 41.6%
52.profile imageCassiniSaturn

Our spacecraft is gone, but the science continues. Join us at @NASASolarSystem for the latest.
Saturn, Solar System
11 yrs, 0 mos on Twitter
1,638,015 41.4%
53.profile imageCatherine Q.

Astrophysicist, science communicator, over-thinker. One of @HuffPostscience Top 30 Physicists to follow. @AucklandUni space person. Dogs rule.
New Zealand
10 yrs, 4 mos on Twitter
41,312 40.9%
54.profile imagePeter Edmonds

Work in astronomy publicity after surviving an astrophysics PhD & postdocs. Interested in #science & #scicomm. Opinions are mine & RTs aren't endorsements.
7 yrs, 6 mos on Twitter
4,145 40.9%
55.profile imageDavid Spergel

Astrophysicist at Princeton University and Flatiron Institute
Princeton NJ
5 yrs, 5 mos on Twitter
5,549 40.7%
56.profile imageDr. Chanda Prescod-Weinstein 🙅🏽‍♀️ 🇧🇧🏳️‍🌈

#BlackandSTEM Assistant Prof of #Physics, Black Feminist #HistSTM. agender woman/she. Spring 2021: #DisorderedCosmos from @BoldTypeBooks! tweets by/for me only.
11 yrs, 1 mo on Twitter
55,743 40.4%
57.profile imageDr. Tanya Harrison

🇨🇦🇺🇸🏳️‍🌈Professional Martian 🛰 Science+Sci-Fi Consultant 🌍 Geoscientist @planetlabs 🔴 Former mission ops for @MarsCuriosity, @MarsRovers, MRO. Views are my own.
Toronto / Washington DC
10 yrs, 3 mos on Twitter
29,229 40.4%
58.profile imageSarcasticRover

Doing a science on the red planet. Not @MarsCuriosity. Portrait by @badportraits. Written by @jfiliatrault.
4th Rock From the Sun
6 yrs, 11 mos on Twitter
968,321 40.2%
59.profile imageNASA's Juno Mission

Exploring Jupiter to improve our understanding of the planet's origins and the formation of planetary systems. missionjuno.swri.edu nasa.gov/juno
10 yrs, 5 mos on Twitter
747,281 40.2%
60.profile imageHubble

The official Twitter account for the NASA Hubble Space Telescope, managed and operated by NASA's Goddard Space Flight Center.
Goddard Space Flight Center
11 yrs, 4 mos on Twitter
6,223,817 39.7%
61.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
10 yrs, 11 mos on Twitter
292,916 39.5%
62.profile imageBenneHolwerda

Astronomer at large (mostly harmless). University of Louisville. Opinions & typos obv my own.
Louisville, KY
11 yrs, 0 mos on Twitter
2,155 39.5%
63.profile imageNASA New Horizons

The New Horizons spacecraft flew past the dwarf planet Pluto and its moons in July 2015. Next up is a New Year's 2019 flyby of Kuiper Belt object Ultima Thule.
Solar System
4 yrs, 10 mos on Twitter
392,285 39.2%
64.profile imageESA Science

Science @ the European Space Agency ESA, keeping you posted on European space science activities.
Noordwijk, The Netherlands
9 yrs, 5 mos on Twitter
316,263 39.2%
65.profile imageSophia Gad-Nasr 🏳️‍🌈

Astroparticle physicist working on dark matter. PhD student @UCIrvine. Feminist. Captivating the world w/physics, one particle at a time. And hamsters. She/her
🐶|Los Angeles〉+ 🐹|Irvine〉
9 yrs, 2 mos on Twitter
30,674 39.2%
66.profile imageSarah Ballard

Habitable worlds, kindness, fiction, etc. At ~75 km/s*Mpc! One half of @drssarahcare
Cambridge, MA
5 yrs, 5 mos on Twitter
3,391 39.2%
67.profile imagePlanetary Society

We just launched a citizen-funded solar sail on a #SpaceX Falcon Heavy. Join CEO @BillNye and the #LightSail2 mission!
Pasadena, CA
8 yrs, 9 mos on Twitter
198,928 39.0%
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
5 yrs, 6 mos on Twitter
3,437 39.0%
69.profile imageProf. Nicole Gugliucci, Doctor of the Sky

Physics professor, astronomer, education researcher, scicommer, advocate for equity in STEM. Geek, crossfitter, dog mom. She/her. 🏳️‍🌈 Tweets mine; RT≠endorse
New Hampshire, USA
11 yrs, 0 mos on Twitter
21,072 38.5%
70.profile imageRisa Wechsler

astrophysicist. cosmologist. maker of universes, surveyer of the skies. professor of physics @stanford, director of @kipac1. talks: bit.ly/risamovies
San Francisco
6 yrs, 9 mos on Twitter
9,868 38.5%
71.profile imageBill Nye

Science Rules! Podcast Out Now 🧪
Los Angeles, CA
10 yrs, 2 mos on Twitter
5,885,628 38.1%
72.profile imageChris Hadfield

Canadian Astronaut, back on Earth after 3 spaceflights. For events and media, please write to [email protected]
8 yrs, 10 mos on Twitter
2,398,361 38.1%
73.profile imageESA Rosetta Mission

ESA spacecraft that studied Comet 67P/Churyumov-Gerasimenko & sent @philae2014 to its surface. Mission completed 30 Sep 2016. Follow @esascience for latest news
5 yrs, 7 mos on Twitter until last tweet (2016-Sep-30)
466,782 37.6%
74.profile imageJedidah Isler, PhD

Astrophysicist / Professor / Relentless Dreamer / Innovator / Founder & Host @VanguardSTEM / Senior @TEDFellow / @NatGeo Explorer [she]
8 yrs, 11 mos on Twitter
16,668 37.6%
75.profile imageMeg Schwamb

Planetary scientist, astronomer, Gemini North assistant scientist: KBOs, Planet Four(Mars), MBCs(Comet Hunters),LSST SSSC co-chair. Opinions tweeted are my own
Hilo, HI
9 yrs, 2 mos on Twitter
5,007 37.6%
76.profile imageGrant Tremblay

Astrophysicist at the Center for Astrophysics | Harvard & Smithsonian. Previously @NASA Einstein Fellow @Yale, Fellow @ESO, & SDAS regular @STScI. Views my own.
Cambridge, MA
10 yrs, 4 mos on Twitter
5,154 37.4%
77.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
Cambridge, MA
6 yrs, 5 mos on Twitter
2,354 37.4%
78.profile imageNature News & Comment

Science news & opinion from the news team at Nature, the international journal of #science. Get our daily newsletter: go.nature.com/naturebriefing
10 yrs, 10 mos on Twitter
1,936,040 37.1%
79.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
3 yrs, 9 mos on Twitter
19,754 37.1%
80.profile imageNadia Drake

Contributing writer @natgeo. Former ballet dancer, slightly obsessed with planets (and MOONS), jungles and spiders. Champagneophile. PhD.
8 yrs, 9 mos on Twitter
26,195 36.6%
81.profile imageDr Chiara Mingarelli

Gravitational-wave astrophysicist. Associate Research Scientist at @FlatironCCA. Views my own.
New York, NY
8 yrs, 4 mos on Twitter
6,713 36.4%
82.profile imageProf Anna Watts

Professor of Astrophysics @ Univ. of Amsterdam. Neutron stars (explosions, dense matter), X-ray astronomy. Mom, Migrant. Particles in stars blah blah.
5 yrs, 1 mo on Twitter
4,879 36.4%
83.profile imageMika McKinnon

Field geophysicist, disaster researcher, scifi science consultant, science writer, public speaker, irrepressibly curious. #scicomm #womeninSTEM she/her
West Coast
10 yrs, 1 mo on Twitter
41,773 36.2%
84.profile imageAlberto Conti

Astrophysicist & Director of New Business at Ball Aerospace - Tweets are my own, at least in this multiverse. en.wikipedia.org/wiki/Alberto_C…
Colorado, USA
11 yrs, 0 mos on Twitter
3,680 36.2%
85.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
10 yrs, 2 mos on Twitter
683,273 35.9%
86.profile imageShit Academics Say

A social experiment | @prof_nch
5 yrs, 9 mos on Twitter
315,235 35.9%
87.profile imagejorge moreno

Claremont, CA
4 yrs, 11 mos on Twitter
2,700 35.9%
88.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
Cambridge, MA, USA
6 yrs, 0 mos on Twitter
13,227 35.5%
89.profile imageSTARtorialist

Where science meets fashion and scientists get FABULOUS! Blog & pop-up shop by professional astronomers @Summer_Ash & @emilylurice. Goal for 2019: online shop!
The Universe
5 yrs, 7 mos on Twitter
4,605 35.5%
90.profile imageAlexandra Witze

Correspondent for Nature, views my own. Reach me (preferred) witzescience-at-gmaildotcom or (secure) awitze-at-protonmaildotcom. She/her/hers.
Boulder, CO
10 yrs, 4 mos on Twitter
20,565 35.0%
91.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
8 yrs, 8 mos on Twitter
390,307 34.8%
92.profile imageMatthew R Francis

Writer of physics and astronomy. Wearer of jaunty hats. Tryin' to publish a novel. Proud Rebel scum. Avatar by @ScienceComic . He/him.
Cleveland, OH
8 yrs, 10 mos on Twitter
20,581 34.8%
93.profile imageBecky Smethurst

Astrophysicist researching how supermassive black holes affect galaxies. I get overly enthusiastic about space on YouTube: youtube.com/drbecky
Oxford, England
10 yrs, 3 mos on Twitter
6,039 34.5%
94.profile imageNASA Goddard

Tweeting the best in astrophysics, Earth sciences, engineering, robotic exploration, Sun science, and technology for NASA's Goddard Space Flight Center.
Greenbelt, MD USA
10 yrs, 5 mos on Twitter
535,497 34.3%
95.profile imageLIGO

Official Twitter of the LIGO Scientific Collaboration. We detect gravitational waves! YouTube: youtube.com/ligovirgo
Livingston, LA and Hanford, WA
11 yrs, 1 mo on Twitter
90,294 34.0%
96.profile imageTim @RealScientists

Real science from real scientists, writers, communicators, artists & clinicians. This week: Staff Scientist, Tim Rabanus-Wallace | @mtrw85
6 yrs, 5 mos on Twitter
80,715 34.0%
97.profile imageJane Rigby

Astronomer @nasa studying black holes & galaxies w/ telescopes around world & in space, helping build @NASAWebb. Queer parent scientist UU activist. Views mine.
DC Metro
8 yrs, 6 mos on Twitter
4,971 34.0%
98.profile imageKarin Sandstrom

Assistant professor of astronomy and physics. Lover of coffee, interstellar dust, California, nerdy stuff. Originally from SW Washington.
San Diego, CA
10 yrs, 2 mos on Twitter
2,731 34.0%
99.profile imageEthan Siegel

The Universe is: Expanding, cooling, and dark. It starts with a bang! #Cosmology Science writer, astrophysicist, author, Forbes & NASA columnist.
Portland, OR
8 yrs, 2 mos on Twitter
15,285 33.8%
100.profile imageUniverse Today

Universe Today - universetoday.com, a website about space and astronomy. Tweets are probably coming from @fcain
Courtenay, British Columbia
10 yrs, 3 mos on Twitter
290,220 33.6%
101.profile imageESA Gaia

Science with 1 billion objects in three dimensions
10 yrs, 4 mos on Twitter
21,640 33.6%
102.profile imageRobert McNees

Professor, physicist, sci comm. Black holes, quantum gravity, cosmology. Rocky Top. Tar Heel. RT = spooky action at a distance. Opinions are mine alone. He/him.
Chicago, z=0
11 yrs, 0 mos on Twitter
14,609 33.6%
103.profile imageJackie Faherty

Astrophysicist at @AMNH. Enthusiast for bringing the cosmos to the public @backyardworlds #womeninscience #BDNYC #manhattanhenge calculator. #scicomm
10 yrs, 3 mos on Twitter
4,901 33.6%
104.profile imageEmily Levesque ✨🔭🤓🏳️‍🌈

Astronomy professor, author, weird star enthusiast | THE LAST STARGAZERS, my book of astronomy stories & adventures, is coming in 2020! thelaststargazers.com
Seattle, WA
9 yrs, 4 mos on Twitter
3,609 33.6%
105.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
10 yrs, 5 mos on Twitter
163,183 33.3%
106.profile imageDr. Jennifer L. Hoffman ✨

Astronomer, associate professor, alto, auntie, ailurophile. She/her. University of Denver
Denver, CO
5 yrs, 6 mos on Twitter
2,963 33.3%
107.profile imageCaitlin Casey

Astronomer and Assistant Professor at the University of Texas at Austin. she/hers
Austin, TX
5 yrs, 4 mos on Twitter
2,397 33.3%
108.profile imageCERN

#CERN, the European Organization for Nuclear Research, is the world's largest particle physics lab, home of the #LHC. French: @CERN_FR
11 yrs, 0 mos on Twitter
2,561,492 33.1%
109.profile imageRoyal Astronomical Society

The RAS encourages and promotes astronomy, solar-system science, & geophysics in the UK and around the world. Tweets mostly by @RobertMMassey & @DrHelenKlus 🌍🔭
Burlington House, London
9 yrs, 3 mos on Twitter
29,944 33.1%
110.profile imageGeert Barentsen

NASA Astronomer in Silicon Valley. Leads the wonderful @KeplerGO team at @NASAAmes. Belgian (like waffles). #KeplerMission #K2Mission
Mountain View, CA
10 yrs, 1 mo on Twitter
3,445 33.1%
111.profile imageAlan Stern

Scientist. Space Explorer. Author. Speaker, Optimist. Pilot. Dad. Not necessarily in that order. Follow my New Horizons Twitter feed @NewHorizons2015 too!
Niwot, CO
10 yrs, 11 mos on Twitter
37,744 32.9%
112.profile imageDan F-M

I write code for good & astrophysics.
7 yrs, 11 mos on Twitter
2,819 32.9%
113.profile imageDr Michelle Collins

Astrophysicist working on Local Group galaxies. Soft spot for Andromeda. Keen runner. All views my own. RT != endorsement
Guildford, England
10 yrs, 1 mo on Twitter
2,190 32.9%
114.profile imageJosh Peek

Principal Investigator @MAST_News. Data Science and astronomy at @stsci and JHU. Statements do not reflect the position of any employer, obvi.
10 yrs, 4 mos on Twitter
1,321 32.9%
115.profile imageProf. Lisa Harvey-Smith

Astrophysicist, Australian Government Women in STEM Ambassador, Author #WhenGalaxiesCollide & #UnderTheStars, Stargazing Live presenter, Ultramarathoner. 🌈
7 yrs, 8 mos on Twitter
17,522 32.6%
116.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
10 yrs, 2 mos on Twitter
8,504 32.6%
117.profile imageJames Davenport

Astronomer, maker of data and science things, Dad. All opinions are my own.
Seattle, WA
7 yrs, 1 mo on Twitter
2,625 32.6%
118.profile imageDr. Emily Petroff

Astronomer.Reader.Random number generator. Veni Fellow studying fast radio bursts 📡💥 at the University of Amsterdam in the API 🏳️‍🌈
The Netherlands
6 yrs, 0 mos on Twitter
9,318 32.4%
119.profile imageDr Jane MacArthur

Planetary scientist @UniOfLeicester studying martian meteorites & comet dust. Writer @PopAstro. Fellow & Councillor @RoyalAstroSoc #RAS200 #Violinist
10 yrs, 5 mos on Twitter
7,356 32.4%
120.profile imagePeter Coles 🌈 🇪🇺 🇮🇪

Theoretical astrophysicist specialising in the Universe and all that surrounds it. Also jazz, opera, poetry & crosswords. Beard of the Year 2018. He/Him. #FBPE
Maynooth, Co Kildare, Ireland
9 yrs, 8 mos on Twitter
6,014 32.4%
121.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
10 yrs, 2 mos on Twitter
2,379 32.4%
122.profile imageNew Scientist

The best place to find out what’s new in science – and why it matters. Tweets by @SoMe_Lilian. Subscribe here: https://t.co/39g6XuLDoZ
10 yrs, 5 mos on Twitter
3,486,191 32.2%
123.profile imageAstro Union

Founded in 1919, the International Astronomical Union (IAU) promotes and safeguards the science of astronomy through international cooperation.
5 yrs, 1 mo on Twitter
8,133 32.2%
124.profile imageJason Wright

Associate Professor of Astronomy and Astrophysics at Penn State. Son, husband, father, scientist, teacher, student, human. Mostly posting astronomy. Mostly.
State College, PA, USA
6 yrs, 9 mos on Twitter
6,295 32.2%
125.profile imageKevin Schawinski

Co-founder/CEO @modulos_ai
Zurich, Switzerland
8 yrs, 5 mos on Twitter
4,566 32.2%
126.profile imageDavid Kipping

Exoplanets & Exomoons, Columbia University, Cool Worlds Lab. RTs ≠ endorsements
Manhattan, NY
10 yrs, 4 mos on Twitter
4,314 32.2%
127.profile imageAmber Straughn

Arkansas native & @NASA astrophysicist. Climate change is real. Pilot, yogini, homebrewer, Great Dane mom, @PearlJam fan, Razorback 🏈 fan, #FirstGen Tweets mine
8 yrs, 2 mos on Twitter
13,832 31.9%
128.profile imageMeredith Rawls

Stellar astronomer and data management for @LSST. Also: mom, scicommer, violist, Episcopalian. Keep looking up. (She/her)
Seattle, WA
9 yrs, 4 mos on Twitter
5,254 31.9%
129.profile imageElisabeth Newton

Astronomer, educator and assistant professor @Dartmouth College. Also a climber, baker, crafter & @astrobites co-founder. She/her.
Hanover, NH
8 yrs, 1 mo on Twitter
2,332 31.9%
130.profile imageMarc Kuchner

NASA Citizen Science Lead, Astrophysicist, Songwriter.
Greenbelt, MD
10 yrs, 7 mos on Twitter
5,727 31.7%
131.profile imageAlexandria Ocasio-Cortez

Congresswoman for NY-14 (the Bronx & Queens). In a modern, moral, and wealthy society, no American should be too poor to live. 💯% People-Funded, no lobbyist💰.
Bronx + Queens, NYC
9 yrs, 2 mos on Twitter
4,699,632 31.4%
132.profile imageDavid Grinspoon

Astrobiologist, Author, Musician. 👽🚀🎸🎵🌎❤️
Biosphere One
7 yrs, 9 mos on Twitter
23,927 31.4%
133.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
10 yrs, 5 mos on Twitter
6,506 31.4%
134.profile imageJohanna

Astronomer, runner, educator, feminist, vegan, #Nats fan, she/her/hers
Pasadena, CA
5 yrs, 5 mos on Twitter
2,285 31.4%
135.profile imageAdam Burgasser

astrophysicist, professor, and preferably in the water.
on a plane, or San Diego
8 yrs, 10 mos on Twitter
1,942 31.4%
136.profile imageJason Major

Space. Planets. NASA. Science. Rocketry. Astronomy. Democracy. Nature. Birds. Coffee. Occasionally funny. He/him. (It, but only if you’re an alien.)
Warwick, RI
9 yrs, 6 mos on Twitter
31,355 31.2%
137.profile imageAlan Duffy

A/Professor in Astrophysics at @Swinburne and Lead Scientist of @RiAus Instagram.com/profalanduffy
7 yrs, 0 mos on Twitter
21,081 31.2%
138.profile imageDr. Phil Metzger

Planetary scientist at @UCF. CoFounder NASA KSC SwampWorks. Space Mining. Space Settlement. Science. Instagram @drphiltill
Orlando, FL
6 yrs, 7 mos on Twitter
73,752 31.0%
139.profile imageDr Jess Wade 👩🏻‍🔬

제시카 physics postdoc @imperialcollege. @500womensci/ @wes1919/ @physicsnews enthusiast. she / her. 💜 🔬,🦋+💎s. least useful doctor in my family.
London, England
10 yrs, 4 mos on Twitter
31,966 31.0%
140.profile imageBrian Keating

Physics Professor @UCSanDiego @UCSDcosmology. Dir.: @SimonsObs. Assoc. Dir.: @imagineUCSD. Author LOSING THE NOBEL PRIZE amzn.to/2sa5UpA @WWNorton @TantorAudio
San Diego, CA
8 yrs, 9 mos on Twitter
7,510 31.0%
141.profile imageSloan Digital Sky Surveys

Tweeting about mapping the Universe @APOGEEsurvey @eBOSSurvey @MaNGASurvey
Apache Point Observatory.
6 yrs, 5 mos on Twitter
4,531 31.0%
142.profile imageScientific American

Awesome discoveries. Expert insights. Science that shapes the world.
New York City
11 yrs, 2 mos on Twitter
3,741,460 30.7%
143.profile imageCorey S. Powell

Casting pods with @BillNye on Science Rules. Making magazines @discovermag and @AmSciMag. Writing all around. Science-curious.
Brooklyn, NY
10 yrs, 4 mos on Twitter
67,275 30.5%
144.profile imageJames Tuttle Keane

postdoc at @Caltech 📚 | geophysics of rocky & icy worlds 🌔 | planetary missions 🚀 | science illustrator 🎨 | trekkie 🖖 | dog dad 🐶 | he/him | 🏳️‍🌈
Pasadena, CA
5 yrs, 3 mos on Twitter
6,077 30.5%
145.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
10 yrs, 2 mos on Twitter
1,334,157 30.3%
146.profile imageNASA InSight

The InSight mission will study the early evolution of terrestrial planets. Launched May 5, 2018. Landed Nov. 26, 2018.
Elysium Planitia, Mars
7 yrs, 8 mos on Twitter
705,373 30.3%
147.profile imageHUBBLE

The official feed of ESA/Hubble. The Hubble Space Telescope is the space-based observatory which has revolutionised modern astronomy.
9 yrs, 2 mos on Twitter
579,201 30.3%
148.profile imageProf. Lucie Green

Royal Society Research Fellow, physics Prof at UCL, chair of governors @ucl_academy. Sun & space. Chief Stargazer @popastro. Book: amzn.to/2nitfmi
9 yrs, 1 mo on Twitter
20,856 30.3%
149.profile imageJessica Kirkpatrick

✦ Jessica Ann Kirkpatrick ✦ Astrophysicist → Data Scientist ✦ #scientist #techie #runner #writer ✦
San Francisco, CA
10 yrs, 0 mos on Twitter
5,084 30.3%
150.profile imageJames Bullock

#UCIrvine Astrophysicist, Dean #UCIPhysSci , Professor @UCIPhysAstro , Sometimes mumbler on @ScienceChannel #HTUW
Irvine, California, USA
9 yrs, 11 mos on Twitter
4,092 30.3%
151.profile imageBuzz Aldrin

Celebrating 50 Yrs of Apollo @ RoadtoApollo50th.com; Gemini 12 & Apollo XI Astronaut & Moonwalker; West Point; USAF Col, Korean War Vet; MIT Founder
10 yrs, 1 mo on Twitter
1,399,494 30.0%
152.profile imageNYT Science

Science, Medicine, Environment, Space and Cosmos. Sync your calendar with the solar system: nyti.ms/2ECMtej
New York, NY
12 yrs, 3 mos on Twitter
1,159,733 30.0%
153.profile imageCarolyn Porco

Cassini imaging lead. Visiting Scholar UC Berkeley. National Geographic Eliza Scidmore awardee. I think. I speak. I write. Opinions are my own.
9 yrs, 10 mos on Twitter
62,191 30.0%
154.profile imageHaley Gomez

I'm an Astrophysicist, love books, films astronomy, shoes and dresses.
9 yrs, 7 mos on Twitter
3,017 30.0%
155.profile imageShannon Stirone

Writer. Art Historian. Find me in @NYTimes @washingtonpost @PopSci @TheAtlantic @NatGeo @NewRepublic @RollingStone @Wired @Longreads. Opinions are mine.
Bay Area, CA
4 yrs, 11 mos on Twitter
19,831 29.8%
156.profile imageRuth Angus

Curator & Prof. of Astrophysics at the American Museum of Natural History @AMNH & Flatiron Institute @FlatironCCA. I study stars and exoplanets.
New York, NY
8 yrs, 2 mos on Twitter
1,731 29.8%
157.profile imageDr. Rachael Beaton

migrant astronomer currently at Princeton; 'i have loved the stars too fondly to be fearful of the night' - sarah williams
princeton, nj
9 yrs, 4 mos on Twitter
1,572 29.8%
158.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
2 yrs, 5 mos on Twitter
858,112 29.6%
159.profile imageBobak Ferdowsi

Explorer of space. Engineer on NISAR Earth Science & Europa Clipper. Mars Curiosity, Cassini Saturn. Cat dad. Self-opinioned.
Pasadena, CA
9 yrs, 11 mos on Twitter
122,783 29.6%
160.profile imageDr. Ian O'Neill

Astrophysicist, curious space writer, enthusiastic science communicator. Editor of @AstroSocietyPac's #MercuryOnline. Star stuff, eventual star chum. #scicomm
Woodland Hills, Los Angeles
10 yrs, 11 mos on Twitter
36,301 29.6%
161.profile imageRobert Simpson

Googler, astronomer, TED Fellow. Views are my own.
12 yrs, 2 mos on Twitter
31,028 29.6%
162.profile imageElizabeth Tasker

UK astrophysicist working at the Japan Aerospace Exploration Agency (JAXA). Author of 'The Planet Factory', published by @sigmascience (views are my own~)
7 yrs, 7 mos on Twitter
3,395 29.6%
163.profile imageDr Erin Ryan

Doctor of the flying space rocks who sciences data, curser of #Python, prez of Science on Cake Appreciation Society, collector of orchid plants, tweets mine.
The shores of the crab infeste
9 yrs, 10 mos on Twitter
3,070 29.6%
164.profile imageTim Peake

British ESA astronaut & test pilot back on Earth after 6 months in space.
Cologne, Germany
7 yrs, 2 mos on Twitter
1,609,128 29.3%
165.profile imageNASA's Dawn Mission

My mission has ended, but the science continues. Visit @NASASolarSystem for the latest.
Main Asteroid Belt
9 yrs, 8 mos on Twitter
236,651 29.3%
166.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
9 yrs, 8 mos on Twitter
20,197 29.3%
167.profile imageLSST Astronomy

The widest, fastest, deepest eye of the new digital age.
Cerro Pachon, Chile
10 yrs, 10 mos on Twitter
6,164 29.3%
168.profile imageJesse Shanahan

Data scientist @BoozAllen. Astrophysics. Passions: #AIEthics, video/boardgame accessibility, & 🍟. Cofounded @AAS_WGAD, created #disabledandSTEM. #EhlersDanlos
Stolen Manahoac Land
8 yrs, 1 mo on Twitter
5,450 29.3%
169.profile imageKatey Alatalo

Ph.D. astronomer at STScI, currently housed at Carnegie. Space is amazing! My views are my own.
Pasadena, CA
11 yrs, 1 mo on Twitter
3,501 29.3%
170.profile imageHannah Wakeford

(she/her) Giacconi Fellow @STScI/@AURADC , @exo_cast podcaster & @BSACDIVER | Previously @NASAGoddard Fellow & @UniofExeter PhD | Expressed opinions are mine
7 yrs, 9 mos on Twitter
2,549 29.3%
171.profile imageJason Kalirai

Astrophysicist and Civil Space Mission Area Executive @JHUAPL. Excited about space exploration and enabling new science with amazing missions. Tweets mine.
Highland, MD
7 yrs, 11 mos on Twitter
2,485 29.3%
172.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)
2,276 29.3%
173.profile imageESA Operations

From Earth orbit to deep space: sharing the excitement of realtime mission operations at the European Space Agency #WhereMissionsComeAlive 🛰🕹️
Darmstadt, Germany
10 yrs, 7 mos on Twitter
274,895 29.1%
174.profile imageTrueSciPhi / Kelly Truelove

A window on science, philosophy, and mathematics communities on social media, by Kelly Truelove (physics PhD). See site for more. Photos original.
Austin, Texas
4 yrs, 1 mo on Twitter
6,946 29.1%
175.profile imageJonathan Fortney

@ucsc Professor & Director of Other Worlds Laboratory. Modeler of planetary atmospheres & interiors. Father, Softballer, Runner, Human Selfie Stick, Minnesotan
Santa Cruz, CA
7 yrs, 5 mos on Twitter
2,562 29.1%
176.profile imageSAO/NASA ADS

8 yrs, 6 mos on Twitter
2,554 28.8%
177.profile imageBlackPhysicists

Arlington, VA and Worldwide
10 yrs, 0 mos on Twitter
20,185 28.6%
178.profile imageFranck Marchis

Planetary astronomer at the SETI Institute, CSO at Unistellar, husband, dad & crossfit athlete balancing his life. Tweet about space, our planet & human rights.
San Francisco
8 yrs, 10 mos on Twitter
6,326 28.6%
179.profile imageWomanAstro

Promoting astronomy, encouraging women/girls interested in science. WomanAstro.com, etsy.com/shop/WomanAstro
New Mexico, USA
9 yrs, 7 mos on Twitter
5,013 28.6%
180.profile imageScott Kelly

Ret. U.S. Navy Capt & Astronaut | #YearInSpace • Single longest spaceflight by an American | Speaker, 2X @nytimes bestselling Author #EnduranceMemoir
9 yrs, 10 mos on Twitter
5,608,160 28.4%
181.profile imageScience Friday

Brain fun, for curious people. Hosted by @iraflatow. From @WNYCStudios.
New York, New York
10 yrs, 8 mos on Twitter
762,951 28.4%
182.profile imageSPACE.com

News coverage and conversation about space science, astronomy and exploration. Part of @futureplc
10 yrs, 11 mos on Twitter
761,805 28.4%
183.profile imagePHD Comics

Life (or the lack thereof) in Academia. Comic strip by Jorge Cham. Instagram.com/phd_comics
10 yrs, 11 mos on Twitter
233,035 28.4%
184.profile imageEric Mamajek

Astronomer, dad, stars, (exo)planets. Statements and opinions posted here are my own. Email me directly, I don't respond to Twitter DM.
Pasadena, CA
8 yrs, 4 mos on Twitter
2,322 28.4%
185.profile imageAdrian Price-Whelan

astrophysics postdoc @ Princeton, galaxy dynamics, binary stars, music github.com/adrn
8 yrs, 1 mo on Twitter
2,243 28.4%
186.profile imageJoss Bland-Hawthorn

All things novel, astrophysical, mathematical, technological.
Sydney, Australia
5 yrs, 1 mo on Twitter
2,004 28.4%
187.profile imageJohn O'Meara

Father, Astronomer, science policy nerd. Chief Scientist @keckobservatory Cosmic Origins Science Lead for #LUVOIR Chair AAAC. Tweets are my own
Kamuela, Hawaii
9 yrs, 10 mos on Twitter
1,425 28.4%
188.profile imageSpirit and Oppy

Roving the Red Planet on six wheels since Jan 2004. The official mission Twitter of the Spirit and Opportunity rovers.
Mars: Gusev Crater & Meridiani
11 yrs, 0 mos on Twitter
490,133 28.1%
189.profile imageMatthew Kenworthy

Associate Professor of Astronomy at Leiden Observatory - exoplanet imaging and giant ring transit searches. Keen on giving public talks and outreach.
Leiden, The Netherlands
8 yrs, 8 mos on Twitter
1,911 28.1%
190.profile imageNational Science Foundation

Explore #NSFfunded research that is transforming the world. / Social media policy: bit.ly/smpnsf
Alexandria, VA
10 yrs, 9 mos on Twitter
1,151,969 27.9%
191.profile imageStuart

Maker of things. Data wrangler. Co-author of "Cosmos: The Infographic Book of Space". Podcaster. Has ridden across continents on a bicycle. ✨🛰📕📊🏳️‍🌈 He/him
12 yrs, 1 mo on Twitter
8,108 27.9%
192.profile imageJo Dunkley

Professor of Physics and Astrophysics at Princeton. Author of Our Universe.
Princeton, NJ
7 yrs, 9 mos on Twitter
3,401 27.9%
193.profile imageJC Holbrook

Astrophysicist, Filmmaker, Cultural Astronomer. Hubble's Diverse Universe on Amazon.com BlackSunMovie.com videos.astroanthro.com/Science-Tourist
Kaapstad, ZA
9 yrs, 11 mos on Twitter
3,048 27.9%
194.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
5 yrs, 2 mos on Twitter
1,364 27.9%
195.profile imageHubbleTelescope

News from the Hubble Space Telescope operated by @stsci
11 yrs, 0 mos on Twitter
139,533 27.7%
196.profile imagegruesome science banshee

Scientist, Researcher | Astropalaeontology | Space | Co-founder @realscientists
Auckland, Aotearoa via 🇦🇺
8 yrs, 10 mos on Twitter
37,900 27.7%
197.profile imageNRAO

The National Radio Astronomy Observatory is a facility of the National Science Foundation. Social media policy: bit.ly/2qNhpB3
Charlottesville, VA
10 yrs, 9 mos on Twitter
22,014 27.7%
198.profile imagePriyamvada Natarajan

@Yale astrophysicist, works on exotica in the universe: dark matter, black holes; Author: Mapping the Heavens • https://t.co/DuzePWpq2N
New Haven, CT
3 yrs, 4 mos on Twitter
10,946 27.7%
199.profile image.Astronomy

Conference series about what happens when hackers, astronomers and the web all get together.
Toronto, Ontario
11 yrs, 1 mo on Twitter
3,968 27.7%
200.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
6 yrs, 1 mo on Twitter
2,677,141 27.4%
201.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.
8 yrs, 7 mos on Twitter
5,249 27.4%
202.profile imageBenjamin Pope

Astronomer - he/him
Manhattan, NY
6 yrs, 6 mos on Twitter
2,564 27.4%
203.profile imageErik Tollerud

Astrophysicist, Python coder, and general lover of nature in all its forms. Opinions are my own.
Baltimore, MD
10 yrs, 1 mo on Twitter
1,760 27.4%
204.profile imageNASA Voyager

The official account for NASA’s twin Voyager 1 & 2 spacecraft, the longest operating spacecraft in deep space. 🛰 Mission team headquartered at @NASAJPL
Interstellar space
8 yrs, 10 mos on Twitter
552,485 27.2%
205.profile imageDianna Cowern

Assume a spherical cowern in a vacuum... kauai-grown, #MIT physics, YouTube videos. Pls respond to tweets w bad puns.
San Diego
7 yrs, 3 mos on Twitter
117,109 27.2%
206.profile imageDNLee

#JrProf, Mammalogist, Diversity & Access to STEM, Unapologetically Intersectional, Mama Panyabuku, TED Fellow, NatGeo Emerging Explorer, #DispatchesDNLee
Midwest, US; Tanzania, Africa
8 yrs, 11 mos on Twitter
31,285 27.2%
207.profile imagePresident Obama

This is an archive of an Obama Administration account maintained by the National Archives and Records Administration (NARA).
Washington, D.C.
3 yrs, 7 mos on Twitter until last tweet (2017-Jan-20)
14,970,225 27.0%
208.profile imageLisa Grossman

Astronomy reporter at Science News, lifelong astronomy nerd. Ideas my own. She/her/hers
Cambridge, MA
10 yrs, 4 mos on Twitter
8,636 27.0%
209.profile imageLaura Lopez

Astronomy professor at Ohio State. She/her/hers
6 yrs, 8 mos on Twitter
1,577 27.0%
210.profile imageSamantha Cristoforetti

@ESA astronaut. ISS Exp 42/43 Book in Italian amzn.to/2xNnkc6. In German out on 2 Sep: amzn.to/2VJALUf. In English in 2020! Proceeds to @Unicef.
7 yrs, 11 mos on Twitter
974,583 26.7%
211.profile imageInstitute of Physics

The Institute of Physics is a leading scientific membership society working to advance physics for the benefit of all.
10 yrs, 2 mos on Twitter
170,948 26.7%
212.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.
10 yrs, 3 mos on Twitter
106,696 26.7%
213.profile imageDr Tabetha Boyajian

Assistant professor of Astrophysics at #LSU. disrupter of astrophysics; #BoyajiansStar #TabbysStar; all posts here are my own
Baton Rouge, LA
9 yrs, 11 mos on Twitter
9,804 26.7%
214.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
10 yrs, 2 mos on Twitter
1,510 26.7%
215.profile imageJonathan Amos

BBC Science Correspondent
Cambridge, UK
9 yrs, 5 mos on Twitter
43,859 26.5%
216.profile imageMatt Taylor

I work at the European Space Agency on Rosetta, Space plasma stuff, Swarm, Cluster and now dabbling with the Gateway. 501st Dutch Garrison TK67676 EIB
6 yrs, 9 mos on Twitter
33,306 26.5%
217.profile imageDr. Abbie 💖💜💙

Lady scientist (she/her) 👩🏻‍💻 NSF fellow @msu_astro & @michiganastro 🔭 compact objects 💥 #OpenSource 🐍 #BiInSci 💖 mastodon:alstev 🐘tweets≠NSF,MSU,UM
Anishinaabeg/Odawa land
8 yrs, 5 mos on Twitter
2,025 26.5%
218.profile imageWIRED Science

Bringing the radiothermally generated heat. The team: @sandraupson, @JetJocko, @rtg0nzalez, @MeganMolteni, @MrMattSimon, @dmoberhaus
San Francisco, California
11 yrs, 9 mos on Twitter
2,018,857 26.2%
219.profile imageJim Al-Khalili

Professor of theoretical physics, author, broadcaster and humanist. President of @BritSciAssoc. "Affable Egghead" (Sunday Times).
University of Surrey
9 yrs, 5 mos on Twitter
137,583 26.2%
220.profile imageJeff Foust

Senior writer, @SpaceNews_Inc. You know the drill: retweets aren't endorsements; opinions here are my own.
Rockville, Maryland, USA
12 yrs, 1 mo on Twitter
37,296 26.2%
221.profile imageDaniel Fischer

All things astronomy and space (and then some) - in tiny bits and pieces but mostly with links to more ... :-)
Königswinter, Germany
10 yrs, 9 mos on Twitter
13,171 26.2%
222.profile imageMark McCaughrean

Senior Advisor for Science & Exploration at the European Space Agency. Well aware of the (in)significance of being recycled starstuff. Opinions very much own.
Wassenaar, The Netherlands
3 yrs, 11 mos on Twitter
5,464 26.2%
223.profile imageAAS Executive Office

The mission of the American Astronomical Society (AAS) is to enhance & share humanity's scientific understanding of the universe.
Washington, DC, USA
8 yrs, 7 mos on Twitter
3,584 26.2%
224.profile imageBruce Macintosh

Stanford professor. Astronomer: exoplanets, instruments, astropolicy. Sarcasm and golden retrievers. Principal investigator for the Gemini Planet Imager
Stanford, CA
1 yr, 8 mos on Twitter
1,176 26.2%
225.profile imageNOT ALT WORLD

The #Resistance team against #AltFacts #FauxNews #FauxScience Formerly: Unofficial National Park Service #Science #Climate #Facts Run by non-gov individuals
1 yr, 9 mos on Twitter until last tweet (2017-Feb-07)
1,112,228 26.0%
226.profile imageNASA's OSIRIS-REx

NASA's first asteroid sampling spacecraft. I'm on a 7-year mission to return a pristine sample from asteroid Bennu.
Asteroid Bennu
11 yrs, 0 mos on Twitter
80,567 26.0%
227.profile imageNASA_TESS

This is the official @NASA Twitter for the Transiting Exoplanet Survey Satellite (TESS). @NASA_TESS will perform an all-sky survey to discover new exoplanets
Goddard Space Flight Center
5 yrs, 10 mos on Twitter
48,587 26.0%
228.profile imageSquareKilometreArray

The SKA will be the world's largest radio telescope, located in Africa & Australia. Tweets from the SKA Global Headquarters.
Jodrell Bank (UK)
8 yrs, 9 mos on Twitter
20,603 26.0%
229.profile imageAstropy

This is the official twitter account for the Astropy project.
7 yrs, 11 mos on Twitter
3,032 26.0%
230.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
7 yrs, 7 mos on Twitter
1,996 26.0%
231.profile imageNancy Atkinson

Science journalist & author of new book on Apollo 11, "Eight Years to the Moon," amazon.com/gp/product/162…
11 yrs, 0 mos on Twitter
11,501 25.8%
232.profile imageGiant Magellan

A next-generation “Extremely Large Telescope” seeking to unlock the mysteries of the universe.
Las Campanas, Chile
8 yrs, 1 mo on Twitter
6,178 25.8%
233.profile imageLiz B ☆

X-ray and Optical Astronomer at @ESO. FLAMES Instrument Scientist. Bleeding heart liberal & intersectional feminist. All views my own. Ⓥ #WomenInScience
Edinburgh, Scotland
7 yrs, 4 mos on Twitter
1,676 25.8%
234.profile imageThomas Zurbuchen

Associate Administrator, @NASA Science Mission Directorate
Washington, DC
8 yrs, 4 mos on Twitter
24,504 25.5%
235.profile imageLego Academics

The female academics of the Lego Research Institute take on the challenges of modern academia. CC-BY-NC-SA
Lego Research Institute
3 yrs, 6 mos on Twitter until last tweet (2018-Feb-26)
74,079 25.3%
236.profile imageSabine Hossenfelder

Physicist, blogger, author. Sometimes-songwriter, nighttime-philosopher. Maker of my own misery. she/her
11 yrs, 7 mos on Twitter
27,596 25.3%
237.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
4 yrs, 5 mos on Twitter
6,693 25.3%
238.profile image☄Ashley🔭Lindalía☄

🚀🔭📡Astrochemist⚗🧪🔬|Planetary Scientist👩🏾‍🔬🌍|The Realest In The Streets|Rapper on Weekends🤦🏾‍♀️😂🤷🏾‍♀️|Magical & Trill💫|❤🖤💚#BlackandSTEM✊🏾✊🏿✊🏽
Chicago, IL, USA,🌍
8 yrs, 5 mos on Twitter
4,490 25.3%
239.profile imageJonathan Pritchard

Imperial astrophysicist and bewildered vagabond. Reader. SKA enthusiast. @ERC_research funded (opinions mine, not employer's)
Richmond, London
8 yrs, 6 mos on Twitter
1,815 25.3%
240.profile imageHillary Clinton

2016 Democratic Nominee, SecState, Senator, hair icon. Mom, Wife, Grandma x2, lawyer, advocate, fan of walks in the woods & standing up for our democracy.
New York, NY
6 yrs, 3 mos on Twitter
24,803,956 25.1%
241.profile imageDr. Brian May

Rocket Ship Builder 🚀🚀🚀🚀🚀
6 yrs, 9 mos on Twitter
982,417 25.1%
242.profile imageSpace Telescope Live

What is @HubbleTelescope looking at? –Reference images from @STScI Digitized Sky Survey and Sloan Digital Sky Survey Data Release 13 (not actual Hubble images)
Low Earth Orbit
2 yrs, 10 mos on Twitter
9,964 25.1%
243.profile imageDan Hooper

Physicist and author at Fermilab and the University of Chicago
Chicago, IL
1 yr, 7 mos on Twitter
5,982 25.1%
244.profile imageAndy Rivkin

Planetary astronomer on #TeamAsteroid; Gedankenband member and guitarist; Persistently Obstreperous.
#USAstronomyGoodwillAmbassador ⊗
11 yrs, 1 mo on Twitter
4,869 25.1%
245.profile imageDr Jen Gupta

Space nerd. @UoPCosmology astronomy outreach. @SeldomSirius podcaster. @TWBBC Live presenter. @WinSciFest. Active Galaxies were my 1st love. Own views [she/her]
Winchester, UK
9 yrs, 10 mos on Twitter
4,722 25.1%
246.profile imageAngela Speck

Tattooed witchy astrolator; stellar mortician, empress of the eclipse, queen of astromineralogy; SJW; currently living in the Midwest.
Columbia, MO
8 yrs, 2 mos on Twitter
2,009 25.1%
247.profile imageStephen Colbert

the guy on CBS
10 yrs, 9 mos on Twitter
18,533,034 24.8%
248.profile imageAmy Mainzer

Jet Propulsion Laboratory
6 yrs, 4 mos on Twitter
26,826 24.8%
249.profile imagegalaxyzoo

It's Galaxy Zoo!
10 yrs, 6 mos on Twitter
13,634 24.8%
250.profile imageRadio Astrology

Opening new windows in the prediction spectrum. Astrology at long wavelengths.
In the stars (and the ISM)
7 yrs, 8 mos on Twitter
3,913 24.8%
251.profile imageGuardian Science

Science, health and environment news from the @Guardian. Plus, independent comment and analysis from our network of expert science bloggers
10 yrs, 4 mos on Twitter
1,063,752 24.6%
252.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
10 yrs, 3 mos on Twitter
245,683 24.6%
253.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.
Cambridge, MA
8 yrs, 8 mos on Twitter
7,590 24.6%
254.profile imageArfon Smith

Head of Data Science @stsci. Ex GitHubber. Zooniverse co-founder. Editor-in-chief of the Journal of Open Source Software.
Baltimore, MD
12 yrs, 6 mos on Twitter
4,371 24.6%
255.profile imageAndrew Pontzen

I do cosmology. Employed by UCL, funded by the Royal Society. Tweeting in a personal capacity: it’s no-one else’s fault when I talk nonsense.
8 yrs, 11 mos on Twitter
3,295 24.6%
256.profile imageRobert Massey #FBPE

Dad, Deputy Director @royalastrosoc, chair @lightyear_fdn. Co-author of Moon: Art, Science, Culture with @saschaloske. See bit.ly/2PpjMn0 #FBPE he/him
Bristol (Southville) & London
9 yrs, 10 mos on Twitter
3,085 24.6%
257.profile imageMoiya McTier

Astrophysicist & Science communicator | she/her 💫 #scicomm | #BiInSci | #BlackAndSTEM 💫 Tryna be the next @BillNye
New York, NY
5 yrs, 0 mos on Twitter
2,689 24.6%
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
8 yrs, 11 mos on Twitter
2,442 24.6%
259.profile imageNASA's Kennedy Space Center

Official Tweets from NASA's Kennedy Space Center
Florida, USA
10 yrs, 9 mos on Twitter
1,498,423 24.3%
260.profile imageChandra Observatory

Chandra's ongoing mission is to study the X-ray Universe. Operated for NASA by Smithsonian Astrophysical Observatory. Legal: s.si.edu/legal
In orbit
11 yrs, 5 mos on Twitter
175,026 24.3%
261.profile imageNASA Spitzer

NASA's Spitzer Space Telescope - the infrared Great Observatory. Observes asteroids, comets, extrasolar planets, stars, galaxies and more...
Pasadena, CA.
9 yrs, 2 mos on Twitter
125,351 24.3%
262.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.
8 yrs, 6 mos on Twitter
58,032 24.3%
263.profile imageJennifer Ouellette

Science and culture writer Jennifer Ouellette. Senior writer, Ars Technica. Past: Gizmodo. Ex-evangelical. Married to @seanmcarroll.
Los Angeles, CA
9 yrs, 3 mos on Twitter
37,879 24.3%
264.profile imageKaren James ❄️

Scientist & outdoorswoman tweeting about molecular ecology, genetics, evolution, botany, space, feminism & social justice, but in reverse order if I’m honest.
Bar Harbor, ME
10 yrs, 7 mos on Twitter
32,366 24.3%
265.profile imageHistory of Astronomy

Multidisciplinary & multicultural history of astronomy #histastro by @VoulaSaridakis, Ph.D. | Curator, Museum of Science and Industry, Chicago @msichicago.
All tweets/views/opinions mine
4 yrs, 4 mos on Twitter
21,043 24.3%
266.profile imageEmma Chapman

Astrophysicist, Royal Society Dorothy Hodgkin Fellow, Imperial College London. Campaigner on sexual misconduct in HE w/ @1752group.
London, England
2 yrs, 9 mos on Twitter
4,188 24.3%
267.profile imageCaroline Morley

Assistant Prof at UT Austin, modeler of substellar atmospheres
Austin, TX
6 yrs, 9 mos on Twitter
1,985 24.3%
268.profile imageNational Geographic

Taking our understanding and awareness of the world further for 130 years
10 yrs, 7 mos on Twitter
23,016,593 24.1%
269.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/
Auld Reekie
9 yrs, 3 mos on Twitter
2,047 24.1%
270.profile imagenature

International weekly journal of science. Editorials, News & Views, Comment, Careers and primary research coverage here. For news, please see @NatureNews.
7 yrs, 5 mos on Twitter
1,578,005 23.9%
271.profile imageXKCD Comic

XKCD comic feed with images, mobile friendly links, and what-if articles. Unofficial, run by @dghubble
5 yrs, 6 mos on Twitter
229,856 23.9%
272.profile imageRose DF

Astrobiophysics and Applied Astronautics | Isleña Quisqueyana | “La pregunta no es quién me va a dejar; es quién me va a detener”.
New York, NY - She/Her
4 yrs, 10 mos on Twitter
15,123 23.9%
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
10 yrs, 4 mos on Twitter
4,888 23.9%
274.profile imageAstronomy On Tap HQ

🌟Professional astronomers reveal how they explore the Universe, at bars & pubs around the world!🌟HQ account follows satellite locations, organizers, & venues.
6 yrs, 4 mos on Twitter
2,808 23.9%
275.profile imageDra. Nicole

CEO of Movement Consulting // Astronomy Ph.D. and STEM equity advocate // She/Her/Hers // #LatinaInSTEM // I have the best ideas
4 yrs, 9 mos on Twitter
2,272 23.9%
276.profile imageDustin Lang

Astronomer at @Perimeter. Farm-raised left-handed vegetarian Canadian socialist. Tweets often astronomical/computational/scatological. he/Dr
Waterloo, Canada
5 yrs, 6 mos on Twitter
1,571 23.9%
277.profile imageDr. Caryl Gronwall

Astronomer at Penn State University
State College, PA
8 yrs, 4 mos on Twitter
1,321 23.9%
278.profile imageAlan Boyle

Aerospace and science editor @GeekWire. Longtime blogger @CosmicLog. Author of "The Case for Pluto." Links/RTs ≠ endorsements
11 yrs, 4 mos on Twitter
36,385 23.6%
279.profile imageStuart Clark

Astronomer, journalist, author. The Sky's Dark Labyrinth. Writes Across the Universe for The Guardian. Co-hosts The Stuniverse podcast. Dyed-in-the-wool progger
10 yrs, 2 mos on Twitter
35,044 23.6%
280.profile imageMiriam Kramer

I write the @Axios Space newsletter. It's not aliens. It's never aliens. Get in touch: [email protected]
Now: NYC. Before: Tennessee.
9 yrs, 2 mos on Twitter
18,721 23.6%
281.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
10 yrs, 3 mos on Twitter
3,574 23.6%
282.profile imageDerek Fox

Astronomer and faculty member (he/him) at Penn State University. A personal Twitter account. "Where is everybody?" -E. Fermi
10 yrs, 4 mos on Twitter
2,434 23.6%
283.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.
8 yrs, 1 mo on Twitter
1,978 23.6%
284.profile imageGautham Narayan

Lasker Fellow at @stsci. Dark energy, supernovae, white dwarfs, machine learning, astro edu & outreach, photography, hiking. Semi-responsible nerd! (He/him)
Baltimore, MD
9 yrs, 8 mos on Twitter
1,221 23.6%
285.profile imageESA Planck

A European Space Agency (ESA) spacecraft to understand the origin and evolution of our Universe
L2: 1,000,000 miles from Earth
9 yrs, 4 mos on Twitter until last tweet (2017-Oct-14)
47,809 23.4%
286.profile imageChris North

Lecturer & astronomer @CardiffPHYSX. Co-author of cosmos-book.github.io + other books, semi-regular broadcaster. Comments own. [he/his]
Cardiff (normally)
9 yrs, 9 mos on Twitter
5,402 23.4%
287.profile imageEmily Baldwin

Space Science Editor at EJR-Quartz for ESA, based at ESTEC. Tweets about space, running, coffee. Opinions own.
Leiden, Netherlands
10 yrs, 4 mos on Twitter
4,977 23.4%
288.profile imageKristin Block

Spacecraft pro, taiko player, bassist, percussionist. Miami-Tucson-Bay Area. (Not affiliated with the mission @Maven2Mars!) Opinions my own and queer.
San Jose, CA
10 yrs, 0 mos on Twitter
3,705 23.4%
289.profile imageStephen Serjeant

Astronomy Prof at Open University,occasionally does OU/BBC stuff. 26.2mi=42.2km.Remainer. Likes often=bookmarks. Views here do not necessarily blah blah. He/him
10 yrs, 3 mos on Twitter
2,323 23.4%
290.profile imageJohn Debes

STIS Team Lead at @stsci. Part of @diskdetective and @NASAWFIRST CGI science team. Exoplanets, white dwarf planets, and disks. My opinions are my own. He/Him
Geektown, USA
6 yrs, 8 mos on Twitter
1,115 23.4%
291.profile imageStephanie Juneau

Associate Astronomer at @NOAONorth. Project Scientist for @NOAODataLab. Coffee & dark chocolate addict. Fan of #blackHoles #art #sciart #rockclimbing
5 yrs, 0 mos on Twitter
981 23.4%
292.profile imageNate Silver

Editor-in-Chief, @FiveThirtyEight. Author, The Signal and the Noise (amzn.to/QdyFYV). Sports/politics/food geek.
New York
10 yrs, 10 mos on Twitter
3,204,718 23.2%
293.profile imageBrian Greene

Physicist, Author, Co-founder @WorldSciFest
New York, NY
7 yrs, 1 mo on Twitter
1,013,001 23.2%
294.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
9 yrs, 8 mos on Twitter
204,423 23.2%
295.profile imageAriel Waldman

NASA advisor. Antarctic explorer. Author (amzn.to/1MFUEVC). Global director @ScienceHackDay. YouTuber youtube.com/arielwaldman. Art school grad.
San Francisco
12 yrs, 4 mos on Twitter
38,901 23.2%
296.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, 11 mos on Twitter until last tweet (2018-Jan-11)
31,877 23.2%
297.profile imageKimberly EnnicoSmith

Scientist at NASA. Fueled by tea. Inspired by many. We can solve our planet's problems as part of space exploration. Views my own. Minor planet 154587.
Mountain View, CA
11 yrs, 4 mos on Twitter
3,790 23.2%
298.profile imageDr Pauline Barmby

Professor & galaxy-observing astrophysicist @westernuphysast, co-chair @LRP2020 (opinions mine). Yarn & SF aficionada, runner. She/her.
Traditional territories of the Anishinaabeg, Haudenausaune, Lenaapeewak, and Attawandaron peoples.
7 yrs, 7 mos on Twitter
1,510 23.2%
299.profile imageStephen Fry

How can I tell you what I think until I’ve heard what I’m going to say? 🏳️‍🌈 (Never read DMs I’m afraid)
Los Angeles, CA/ London UK
10 yrs, 11 mos on Twitter
12,723,459 22.9%
300.profile imageEllen Stofan

John and Adrienne Mars Director of National Air and Space Museum, Planetary geologist, STEM advocate, former Chief Scientist of NASA. My tweets are my own.
Washington, DC
7 yrs, 5 mos on Twitter
12,302 22.9%