Astronomers' Favorite Twitter Feeds

Updated: 2020-Jan-22 22:43 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
Waterloo, Ontario
10 yrs, 9 mos on Twitter
339,528 71.5%
2.profile imageNASA

Explore the universe and discover our home planet with @NASA. We usually post in EST (UTC-4)
12 yrs, 1 mo on Twitter
34,815,119 66.0%
3.profile imageEmily Lakdawalla

Solar System Specialist, The Planetary Society. Planetary scientist, author, speaker, asteroid 274860. Views are my own & not those of employer. 🏳️‍🌈 she/her
Pasadena, CA
11 yrs, 8 mos on Twitter
164,947 63.2%
4.profile imagePhil Plait

SCIENCE! I love this stuff. My Bad Astronomy blog: syfy.com/badastronomy I use likes for bookmarks; no endorsement implied. He/him.
12 yrs, 9 mos on Twitter
615,877 62.9%
5.profile imagechrislintott

Astronomer, zookeeper and journalist, based at University of Oxford.
11 yrs, 3 mos on Twitter
30,737 54.4%
6.profile imageAstrotweeps: Phil

Admins • @astrotweeps • https://t.co/xi86iPD73r • A new astronomer/planetary scientist tweeting about space each week.
The Universe
6 yrs, 0 mos on Twitter
10,477 53.5%
7.profile imageSarah Kendrew

Astronomer with the European Space Agency. Based at the Space Telescope Science Institute in Baltimore. Astronomy, running, bikes. Opinions my own. 🇧🇪🇬🇧
12 yrs, 4 mos on Twitter
9,348 53.1%
8.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, 9 mos on Twitter
57,265 52.9%
9.profile imageSarah Tuttle

Astrophysicist. We're not going to be shady, just fierce. Professor. A tempest well outside her teapot. 100% problematic. She/her. RT = you're on my dance team.
Here, I guess.
12 yrs, 0 mos on Twitter
15,849 52.2%
10.profile imageastrobites

Digestible summaries of the latest research in astrophysics, written by graduate students. Astrobites is supported by the @AAS_Office. #scicomm
All over the world
9 yrs, 0 mos on Twitter
10,460 52.0%
11.profile imageBarack Obama

Dad, husband, President, citizen.
Washington, DC
12 yrs, 10 mos on Twitter
112,274,154 51.5%
12.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
11 yrs, 6 mos on Twitter
4,059,424 51.5%
13.profile imageLucianne Walkowicz

Astronomer @AdlerPlanet, co-founder @JustSpaceOrg, multimedia artist. Ethics of Mars exploration, exoplanets, social justice. Opinions mine. Pronouns: they/them
Chicago, IL
8 yrs, 11 mos on Twitter
16,609 51.5%
14.profile imageAstroBetter

Blog and Wiki for professional astronomers.
10 yrs, 9 mos on Twitter
5,629 51.3%
15.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…
12 yrs, 5 mos on Twitter
1,298,662 51.1%
16.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, 9 mos on Twitter
7,584 50.9%
17.profile imageJulianne Dalcanton

Astrophysicist at the University of Washington. Principal Investigator of the Panchromatic Hubble Andromeda Treasury (PHAT).
8 yrs, 0 mos on Twitter
7,943 50.4%
18.profile imageBryan Gaensler 📡🧲

Astronomer, Director of @DunlapInstitute at @UofT, @LRP2020 co-chair. Sci-fi connoisseur, rugby devotee, displaced Antipodean, perplexed parent. Opinions ∉ UofT
Toronto, Canada he/him
10 yrs, 5 mos on Twitter
10,738 50.0%
19.profile imageDr. Jessie Christiansen

NASA Research Scientist | #exoplaneteer | #WomenInStem advocate | Science curator at @NASAExoArchive | She/her | Married to @PFHopkins_Astro | Mum of twins
Caltech, Pasadena, CA, USA
6 yrs, 0 mos on Twitter
18,815 49.8%
20.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
11 yrs, 0 mos on Twitter
31,010 49.6%
21.profile imageNeil deGrasse Tyson

New York City
10 yrs, 11 mos on Twitter
13,631,788 48.5%
22.profile imageESA

European Space Agency, keeping you posted on European space activities.
10 yrs, 11 mos on Twitter
1,040,925 48.2%
23.profile imageProf. Karen Masters 💫⭐️✨

Professor of astrophysics @haverfordedu. Investigating galaxies with @GalaxyZoo @SDSSurveys. Touch a galaxy @TactileUniverse. British. She/her.
Philadelphia, PA
10 yrs, 10 mos on Twitter
9,019 47.8%
24.profile imageSpaceX

SpaceX designs, manufactures and launches the world’s most advanced rockets and spacecraft
Hawthorne, CA
10 yrs, 9 mos on Twitter
9,617,846 47.4%
25.profile imageSean Carroll

Physicist, @Caltech & @SFIscience. Author, Something Deeply Hidden & more. Host, #MindscapePodcast. Married to @JenLucPiquant. In favor of truth and kindness.
Los Angeles
10 yrs, 10 mos on Twitter
248,969 46.1%
26.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
7 yrs, 3 mos on Twitter
8,079 45.8%
27.profile imageBrian Cox

Professor of Particle Physics at The University of Manchester and The Royal Society Professor for Public Engagement in Science.
The Earth, with everyone else
11 yrs, 1 mo on Twitter
2,955,638 45.6%
28.profile imageFraser Cain

Publisher of universetoday.com, co-host of astronomycast.com. Named after Asteroid 158092.
Courtenay, British Columbia
12 yrs, 10 mos on Twitter
41,422 45.4%
29.profile imageNASA JPL

NASA Jet Propulsion Laboratory manages many of NASA's robotic missions exploring Earth, the solar system and our universe. Tweets from JPL's News Office.
Pasadena, Calif.
10 yrs, 11 mos on Twitter
2,924,335 45.2%
30.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
10 yrs, 5 mos on Twitter
6,380 45.2%
31.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, 11 mos on Twitter
5,383 45.2%
32.profile imageAlex Parker

Planetary astronomer and artist exploring the origin and history of our solar system. Director of @ESPRESSO_SSERVI, keeper of @RoboHiveTweets. He/him.
Boulder, Colorado
11 yrs, 0 mos on Twitter
30,992 44.5%
33.profile imageM. Womack

Astrophysicist and Planetary Scientist working with @FSI_Orlando #AreciboObservatory and UCFPhysics. No pseudoscience. #ObservingRun #ClimateChange #teamcomet
Washington, DC
10 yrs, 5 mos on Twitter
4,561 44.1%
34.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
11 yrs, 5 mos on Twitter
95,520 43.6%
35.profile image★ dr amanda bauer ★

Head of Edu&Outreach for LSST & Deputy Director of LSST Operations. #CosmicVertigo space podcast abc.net.au/radionational/…
Tucson, AZ
11 yrs, 10 mos on Twitter
9,620 43.6%
36.profile imageProf. Emily Rice, Ph.D.

Astronomer at @macaulayhonors, @GC_CUNY, @AMNH, #BDNYC, #CUNYAstro; @AstronomyOnTap HQ; 1/2 of @startorialist; @knitted_bd host ⭐️. Not @djcarlysagan 😜 She/her
Occupied Lunaape Land (NYC)
12 yrs, 4 mos on Twitter
6,092 43.4%
37.profile imageMeg Urry

Yale physics prof, likes supermassive black holes, teaching, writing, increasing participation in STEM, my family
Yale University
8 yrs, 2 mos on Twitter
4,713 43.4%
38.profile imageBrian P Schmidt

An overly busy Cosmologist who is Vice Chancellor of the ANU, Wine maker, Dad & Husband. 2011 Nobel Laureate in Physics
Canberra Australia
10 yrs, 1 mo on Twitter
25,486 43.2%
39.profile imageMike Brown

Astronomer, planet hunter, Pluto killer, bear whisperer, Finger-wrapped dad. Dangerous secularist.
Pasadena, CA
10 yrs, 9 mos on Twitter
64,450 43.0%
40.profile imageMC Stardust ✨

I seem really confident and I talk about space. #lookup #TeamRadio #defectiveheartgirlsolutions 1/2 of @startorialist, opinions=mine (she/her)
Moon/New York City
9 yrs, 9 mos on Twitter
13,354 42.8%
41.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
10 yrs, 2 mos on Twitter
15,380 42.3%
42.profile imageMichele Bannister

Planetary astronomer, poet, hunter of new & strange worlds. Connoisseur of fuzzy dots of light. Asteroid (10463). she/her
living the life non-sidereal
10 yrs, 10 mos on Twitter
9,304 42.1%
43.profile imageAlyssa A. Goodman

Astronomy Professor at Harvard, CoDirector of Science at Radcliffe Institute. President of glue solutions, inc. gluesolutions.io.
11 yrs, 0 mos on Twitter
4,001 41.9%
44.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, 9 mos on Twitter
415,206 41.4%
45.profile imageAssociate Professor J(an). J(amie). Eldridge

NZ theoretical astrophysicist studying exploding binary stars. Lecturer, Speaker, Sci-fi addict, feminist, trans enby. Pronouns: she/her/they.
Auckland, New Zealand
6 yrs, 9 mos on Twitter
8,175 41.4%
46.profile imageDr Rachael Livermore

Astrophysicist | Science Communicator. She/her. Videos of my public talks at bit.ly/SciTalks
London, England
11 yrs, 7 mos on Twitter
7,891 41.4%
47.profile imageBrooke Simmons

Distracted astrophysicist researching galaxies & black holes & other interesting things. Also planetaryresponsenetwork.org lead. (She/her)
United Kingdom
11 yrs, 4 mos on Twitter
8,878 41.2%
48.profile imageDr Pamela L Gay

Come for the science, stay for the typos. All opinions & ideas are my own. Patreon.com/starstryder
Edwardsville, IL
11 yrs, 11 mos on Twitter
41,186 41.0%
49.profile imagesondy

asteroids, comets, @AreciboRadar/🇵🇷 love, cacti 🌵, geology, autoimmune disease/healthcare advocacy, puns, cat herding @ObservatoryCats. she/her
Chukson / Tucson, AZ
9 yrs, 9 mos on Twitter
8,932 41.0%
50.profile imageElon Musk

10 yrs, 7 mos on Twitter
30,807,271 40.8%
51.profile imageNASA Exoplanets

We're the NASA team looking for planets and life beyond our solar system. We represent all of NASA's missions looking for – and finding – new worlds.
11 yrs, 1 mo on Twitter
640,166 40.6%
52.profile imageCatherine Q.

Astrophysicist, science communicator, over-thinker. One of @HuffPostscience Top 30 Physicists to follow. @AucklandUni @ScienceUoA space person. Dogs rule
New Zealand
10 yrs, 10 mos on Twitter
41,530 40.6%
53.profile imageDavid Spergel

Astrophysicist at Princeton University and Flatiron Institute
Princeton NJ
6 yrs, 0 mos on Twitter
5,946 40.4%
54.profile imageDr. Tanya Harrison

🇨🇦🇺🇸🏳️‍🌈Professional Martian 🔴Former mission ops @MarsCuriosity, @MarsRovers & more. 🌍Manager of Science Programs @planetlabs 👩‍🚀Views = my own.
Washington DC + Toronto
10 yrs, 10 mos on Twitter
33,506 40.1%
55.profile imageBenneHolwerda

Astronomer at large (mostly harmless). University of Louisville. Opinions & typos obv my own.
Louisville, KY
11 yrs, 6 mos on Twitter
2,387 40.1%
56.profile image🙅🏽‍♀️ Chanda Prescod-Weinstein 🙅🏽‍♀️

Personal Account. all Black/all Jewish. Prof: #Physics/#Astro & Black feminist #HistSTM. queer agender woman/she. 2021: #DisorderedCosmos! tweets by/for me only
11 yrs, 7 mos on Twitter
62,962 39.9%
57.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, 10 mos on Twitter
6,411,541 39.7%
58.profile imageSarcasticRover

Doing a science on the red planet. Not @MarsCuriosity. Portrait by @badportraits. Written by @jfiliatrault.
4th Rock From the Sun
7 yrs, 5 mos on Twitter
955,717 39.7%
59.profile imageGrant Tremblay

Astrophysicist at the @CenterForAstro | @Harvard & @Smithsonian. Previously @NASA Einstein Fellow @Yale, Fellow @ESO, & SDAS regular @STScI. Views my own.
Cambridge, MA
10 yrs, 10 mos on Twitter
5,576 39.5%
60.profile imagePeter Edmonds

Work in astronomy publicity after surviving an astrophysics PhD & postdocs. Interested in #science & #scicomm. Opinions are mine & RTs aren't endorsements.
8 yrs, 0 mos on Twitter
4,158 39.5%
61.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
6 yrs, 0 mos on Twitter
3,841 39.5%
62.profile imageRisa Wechsler

astrophysicist. cosmologist. maker of universes, surveyer of the skies. professor of physics @stanford, director of @kipac1. she/they. talks: bit.ly/risamovies
San Francisco
7 yrs, 4 mos on Twitter
10,532 39.3%
63.profile imageCassiniSaturn

Our spacecraft is gone, but the science continues. Join us at @NASASolarSystem for the latest.
Saturn, Solar System
11 yrs, 7 mos on Twitter
1,639,730 39.0%
64.profile imageESA Science

Science @ the European Space Agency ESA, keeping you posted on European space science activities.
Noordwijk, The Netherlands
10 yrs, 0 mos on Twitter
335,418 39.0%
65.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, 11 mos on Twitter
763,749 38.8%
66.profile imageChris Hadfield

Canadian Astronaut, back on Earth after 3 spaceflights. For events and media, please write to [email protected]
9 yrs, 4 mos on Twitter
2,393,712 38.4%
67.profile imageSophia Gad-Nasr 🏳️‍🌈

I do cosmology and astroparticle theory. I pick apart the Universe to figure out how it works. Science Advisor. UCI PhysSci Scicomm Fellow. 🇵🇱✡🇪🇬☪️ She/her
🐶|Los Angeles〉+ 🐹|Irvine〉
9 yrs, 8 mos on Twitter
40,456 38.4%
68.profile imageSarah Ballard

Habitable worlds, kindness, fiction, etc. At ~75 km/s*Mpc! One half of @drssarahcare
Cambridge, MA
5 yrs, 11 mos on Twitter
3,452 38.4%
69.profile imagePlanetary Society

Your role in space exploration starts here. Join CEO @BillNye and shape our future in the cosmos.
Pasadena, CA
9 yrs, 4 mos on Twitter
214,946 38.2%
70.profile imageProf. Nicole Gugliucci, Doctor of the Sky 👩‍🏫📡✨

Physics professor, education researcher, astronomer, scicommer, advocate for equity in STEM. Geek, crossfitter, dog mom. She/her. 🏳️‍🌈 Tweets mine; RT≠endorse
New Hampshire, USA
11 yrs, 7 mos on Twitter
21,294 37.7%
71.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
11 yrs, 6 mos on Twitter
293,068 37.5%
72.profile imageBill Nye

Science Rules! Podcast Link Below 🧪
Los Angeles, CA
10 yrs, 8 mos on Twitter
5,962,416 37.1%
73.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
4 yrs, 3 mos on Twitter
23,005 37.1%
74.profile imageDr Chiara Mingarelli

Gravitational-wave astrophysicist. Associate Research Scientist at @FlatironCCA, Assistant Prof. at @UConn. Views my own.
New York, NY
8 yrs, 10 mos on Twitter
7,244 37.1%
75.profile imageNASA New Horizons

After exploring Pluto & its moons in July 2015 the New Horizons spacecraft encountered Kuiper Belt object Arrokoth on Jan 1 2019, the farthest flyby in history.
Solar System
5 yrs, 5 mos on Twitter
393,608 36.8%
76.profile imageJedidah Isler, PhD

Astrophysicist / Professor / Relentless Dreamer / Innovator / Founder & Host @VanguardSTEM / Senior @TEDFellow / @NatGeo Explorer [she]
9 yrs, 5 mos on Twitter
16,709 36.8%
77.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
11 yrs, 5 mos on Twitter
1,989,730 36.6%
78.profile imageLIGO

Official Twitter of the LIGO Scientific Collaboration. We detect gravitational waves! YouTube: youtube.com/ligovirgo
Livingston, LA and Hanford, WA
11 yrs, 7 mos on Twitter
98,994 36.6%
79.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, 7 mos on Twitter
5,522 36.4%
80.profile imageAlberto Conti

Astrophysicist & Director of New Business at Ball Aerospace - Tweets are my own, at least in this multiverse. he/him --en.wikipedia.org/wiki/Alberto_C…
Colorado, USA
11 yrs, 6 mos on Twitter
3,922 36.4%
81.profile imageCaitlin Casey

Astronomer at the University of Texas at Austin🤘🏼, big fan of dust/gas in the Universe, passionate urban farmer. 🐷🐔😽Views my own. she/hers
Austin, TX
5 yrs, 11 mos on Twitter
3,102 36.4%
82.profile imageShit Academics Say

A social experiment | @prof_nch
6 yrs, 4 mos on Twitter
323,872 36.2%
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, 7 mos on Twitter
55,811 36.2%
84.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)
459,330 35.7%
85.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, 9 mos on Twitter
19,377 35.7%
86.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, 9 mos on Twitter
10,544 35.5%
87.profile imageNadia Drake

Contributing writer @natgeo. Former ballet dancer, slightly obsessed with planets (and MOONS), jungles and spiders. Champagneophile. PhD. (she/her)
9 yrs, 3 mos on Twitter
26,746 35.3%
88.profile imageMeg Schwamb

Planetary scientist & astronomer at Queen’s University Belfast: KBOs, Planet Four(Mars), MBCs(Comet Hunters),LSST SSSC co-chair. Opinions tweeted are my own
Belfast, UK
9 yrs, 8 mos on Twitter
5,253 35.3%
89.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, 11 mos on Twitter
2,366 35.3%
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, 10 mos on Twitter
21,746 34.9%
91.profile imageSTARtorialist

Where science meets fashion and scientists get FABULOUS! Blog & pop-up shop by professional astronomers @Summer_Ash & @emilylurice. Online shop➡️early 2020!
The Universe
6 yrs, 1 mo on Twitter
4,774 34.9%
92.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, 9 mos on Twitter
689,776 34.4%
93.profile imageEmily Levesque 🤓✨🔭📚

Astro prof, author, weird star enthusiast | THE LAST STARGAZERS, my book of astronomy stories & adventures, comes out on August 4! thelaststargazers.com
Seattle, WA
9 yrs, 11 mos on Twitter
4,433 34.2%
94.profile imageDan F-M

I write code for good & astrophysics. Associate Research Scientist at @FlatironCCA (he/him)
8 yrs, 5 mos on Twitter
3,138 34.2%
95.profile imageMatthew R "Who Owns An Asteroid?" Francis

Writer of science. Wearer of jaunty hats. Help fund my science comics collection with @ScienceComic : unbound.com/books/who-owns… . He/him.
9 yrs, 4 mos on Twitter
23,545 33.8%
96.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, 7 mos on Twitter
13,256 33.8%
97.profile imageJackie Faherty

Astrophysicist at @AMNH. Enthusiast for bringing the cosmos to the public @backyardworlds #womeninscience #BDNYC #manhattanhenge #astronomy #scicomm
10 yrs, 10 mos on Twitter
5,434 33.8%
98.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
9 yrs, 2 mos on Twitter
382,893 33.6%
99.profile imageESA Gaia

Science with 1 billion objects in three dimensions
10 yrs, 11 mos on Twitter
22,573 33.6%
100.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, 6 mos on Twitter
9,726 33.6%
101.profile imageDr Jess Wade 👩🏻‍🔬

제시카 physics postdoc @imperialcollege. @500womensci + @wikipedia + chiral materials + Raman spectroscopy enthusiast. she / her. least useful doctor in my family.
London, England
10 yrs, 11 mos on Twitter
37,321 33.3%
102.profile imageNASA Goddard

Your friendly neighborhood space flight center. 👩‍🔬🚀 Welcome to the largest community of scientists, engineers and technologists on planet Earth.
Greenbelt, MD USA
10 yrs, 11 mos on Twitter
582,178 33.1%
103.profile imageRealScientists - Caitlyn

Real science from real scientists, writers, communicators, artists & clinicians. This week's curator: @CaitlynCardetti
6 yrs, 11 mos on Twitter
83,387 33.1%
104.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
9 yrs, 0 mos on Twitter
5,012 33.1%
105.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, 8 mos on Twitter
3,604 33.1%
106.profile imageMichelle Collins

Astrophysicist working on Local Group galaxies. Soft spot for Andromeda. Keen runner. All views my own. RT != endorsement
Guildford, England
10 yrs, 8 mos on Twitter
2,398 33.1%
107.profile imageProf. Lisa Harvey-Smith

Astrophysicist, Australian Govt. @WomenInSTEMau Ambassador, Author #WhenGalaxiesCollide, #UnderTheStars, @ABCtv Stargazing Live, Ultramarathoner.
8 yrs, 2 mos on Twitter
19,275 32.9%
108.profile imageRobert McNees

Professor, physicist, sci comm. Black holes, quantum gravity, cosmology. Rocky Top. Tar Heel. RTs are spooky action at a distance. Opinions mine alone. He/him.
Chicago, z=0
11 yrs, 7 mos on Twitter
17,324 32.9%
109.profile imageJames Davenport

Astronomer, maker of data and science things, Dad. Studying stars, looking for aliens. All opinions are my own.
Seattle, WA
7 yrs, 8 mos on Twitter
3,039 32.9%
110.profile imageKarin Sandstrom

Astronomer. Assistant Professor at UC San Diego. Lover of coffee, interstellar dust, California, nerdy stuff.
San Diego, CA
10 yrs, 9 mos on Twitter
2,780 32.9%
111.profile imageRubin Observatory

The Rubin Observatory will produce the Legacy Survey of Space and Time (LSST).
Cerro Pachon, Chile
11 yrs, 5 mos on Twitter
7,761 32.7%
112.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, 10 mos on Twitter
1,912 32.7%
113.profile imageCERN

#CERN, the European Organization for Nuclear Research, is the world's largest particle physics lab, home of the #LHC. French: @CERN_FR
11 yrs, 6 mos on Twitter
2,569,059 32.2%
114.profile imageEd Yong

Science writer at The Atlantic. Author of I CONTAIN MULTITUDES, a New York Times bestseller on animal-microbe partnerships. edyong.me (he/him)
Washington, DC
10 yrs, 11 mos on Twitter
168,912 32.2%
115.profile imageRoyal Astronomical Society

We encourage & promote astronomy, solar-system science & geophysics in the UK & worldwide. Tweets by @RobertMMassey, @yelizrifat, @lucywimss & @MorganDJHollis
Burlington House, London
9 yrs, 10 mos on Twitter
31,297 32.2%
116.profile imageAstro Union

Founded in 1919, the International Astronomical Union (IAU) promotes and safeguards the science of astronomy through international cooperation.
5 yrs, 7 mos on Twitter
9,830 32.2%
117.profile imageDr. Christina Richey

Planetary Scientist/Astrophysicist, fighter 4 inclusion in STEM, love/hate relationship w/ workouts, wine drinker, making my mom 😊; views are my own. they/them
Los Angeles, CA
4 yrs, 4 mos on Twitter
2,655 32.2%
118.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
10 yrs, 0 mos on Twitter
35,550 32.0%
119.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, 8 mos on Twitter
8,708 32.0%
120.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, 11 mos on Twitter
1,339 32.0%
121.profile imageUniverse Today

Universe Today - universetoday.com, a website about space and astronomy. Tweets are probably coming from @fcain
Courtenay, British Columbia
10 yrs, 10 mos on Twitter
294,755 31.8%
122.profile imagePeter Coles 🇮🇪 🏳️‍🌈 🇪🇺 🎷 🎶

Theoretical astrophysicist specialising in the Universe and all that surrounds it (e.g. jazz, opera, poetry & crosswords). Pronouns: he/him. #FBPE
Maynooth, Co Kildare, Ireland
10 yrs, 3 mos on Twitter
6,216 31.8%
123.profile imageDavid Kipping

Exoplanets & Exomoons, Cool Worlds Lab, Columbia University
Manhattan, NY
10 yrs, 10 mos on Twitter
5,310 31.8%
124.profile imageJohanna

Astronomer, runner, educator, feminist, vegan, #Nats fan, she/her/hers
Pasadena, CA
6 yrs, 0 mos on Twitter
2,473 31.8%
125.profile imageAlexandria Ocasio-Cortez

US Representative,NY-14 (BX & Queens). In a modern, moral, & wealthy society, no American should be too poor to live. 💯% People-Funded, no lobbyist💰. She/her.
Bronx + Queens, NYC
9 yrs, 8 mos on Twitter
6,199,930 31.6%
126.profile imageNew Scientist

The best place to find out what’s new in science – and why it matters. Tweets by @SamWong1. Subscribe here: https://t.co/hqL9B4DM0i
10 yrs, 11 mos on Twitter
3,582,950 31.6%
127.profile imageAmber Straughn

Arkansas native & @NASA astrophysicist for #JWST. Climate change is real. Pilot, yogini, Great Dane mom, @PearlJam fan, Razorback 🏈 fan, #FirstGen Tweets mine
8 yrs, 8 mos on Twitter
14,091 31.6%
128.profile imageJason Wright

Professor of Astronomy and Astrophysics at Penn State. Son, husband, father, scientist, teacher, student, human. Mostly posting astronomy. Mostly.
State College, PA, USA
7 yrs, 4 mos on Twitter
6,692 31.6%
129.profile imageDr. Jennifer L. Hoffman ✨

Astronomer, associate professor, alto, auntie, ailurophile. She/her. University of Denver
Denver, CO
6 yrs, 0 mos on Twitter
3,160 31.6%
130.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, 9 mos on Twitter
2,514 31.6%
131.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
11 yrs, 5 mos on Twitter
39,155 31.4%
132.profile imageMeredith Rawls

Stellar astronomer and data management for LSST @VRubinObs Also: mom, scicommer, violist, Episcopalian. Keep looking up. (She/her)
Seattle, WA
9 yrs, 11 mos on Twitter
5,321 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
11 yrs, 0 mos on Twitter
6,708 31.1%
134.profile imageElisabeth Newton

Astronomer, educator and assistant professor @Dartmouth College. Also a climber, baker, crafter & @astrobites co-founder. She/her.
Hanover, NH
8 yrs, 7 mos on Twitter
2,423 31.1%
135.profile imageAdam Burgasser

astrophysicist, professor, and preferably in the water.
on a plane, or San Diego
9 yrs, 5 mos on Twitter
2,019 31.1%
136.profile imageDr Jane MacArthur

Planetary scientist studying @UKAntarcticMets, martian meteorites and comet Stardust. Fellow & elected Councillor @RoyalAstroSoc #RAS200 #Violinist #FCA
10 yrs, 11 mos on Twitter
7,405 30.9%
137.profile imageMarc Kuchner

NASA Citizen Science Lead, Astrophysicist, Songwriter.
Greenbelt, MD
11 yrs, 1 mo on Twitter
5,689 30.9%
138.profile imageBuzz Aldrin

Gemini 12 & Apollo XI Astronaut & Moonwalker; West Point; USAF Col, Korean War Vet; MIT Founder, Human SpaceFlight Institute Founder
10 yrs, 7 mos on Twitter
1,492,161 30.7%
139.profile imageHUBBLE

The official feed of ESA/Hubble. The Hubble Space Telescope is the space-based observatory which has revolutionised modern astronomy.
9 yrs, 8 mos on Twitter
600,260 30.7%
140.profile imageElizabeth Tasker

UK astrophysicist working at the Japan Aerospace Exploration Agency (JAXA). Author of 'The Planet Factory' and writer for @nexssmanyworlds (views are my own~)
8 yrs, 2 mos on Twitter
4,134 30.7%
141.profile imageAlan Duffy

Professor in Astrophysics at @Swinburne and Lead Scientist of @RiAus Instagram.com/profalanduffy
7 yrs, 6 mos on Twitter
21,819 30.5%
142.profile imageBrian Keating

Chancellor’s Professor of Physics @UCSanDiego Dir: @SimonsObs Assoc. Dir:@imagineUCSD. Author LOSING THE NOBEL PRIZE https://t.co/tcM4dZj8u5 @WWNorton @tantoraudio
San Diego, CA
9 yrs, 3 mos on Twitter
8,020 30.5%
143.profile imageKevin Schawinski

Co-founder/CEO @modulos_ai
Zurich, Switzerland
8 yrs, 11 mos on Twitter
4,518 30.5%
144.profile imageJames Bullock

Dean @UCIPhysSci - Professor @UCIPhysAstro - Astrophysicist Cosmologist - Fan of @UCImath @UCIchemistry @UCIESS @UCIrvine - Mumbler on @ScienceChannel #HTUW
Irvine, California, USA
10 yrs, 5 mos on Twitter
4,514 30.5%
145.profile imageBruce Macintosh

Stanford professor. Astronomer: exoplanets, instruments, astropolicy. Sarcasm and golden retrievers. Principal investigator for the Gemini Planet Imager. He/him
Stanford, CA
2 yrs, 2 mos on Twitter
1,927 30.3%
146.profile imageSloan Digital Sky Surveys

Tweeting about mapping the Universe @APOGEEsurvey @eBOSSurvey @MaNGASurvey
Apache Point Observatory.
6 yrs, 11 mos on Twitter
5,124 30.0%
147.profile imageDavid Grinspoon

Astrobiologist, Author, Musician. 👽🚀🎸🎵🌎❤️
Biosphere One
8 yrs, 4 mos on Twitter
24,958 29.8%
148.profile imageShannon Stirone 💀

Writer. Art Historian. Find me in @NYTimes @washingtonpost @PopSci @ozm @TheAtlantic @NatGeo @SciAm @RollingStone @Wired @Longreads. Opinions are mine.
Bay Area, CA
5 yrs, 5 mos on Twitter
22,518 29.8%
149.profile imageTrueSciPhi / Kelly Truelove

A window on science, philosophy, and mathematics communities on social media, by Kelly Truelove (physics PhD). Photo info at instagram.com/TrueSciPhi.
Austin, Texas
4 yrs, 7 mos on Twitter
7,619 29.8%
150.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, 8 mos on Twitter
1,860 29.8%
151.profile imageScientific American

Awesome discoveries. Expert insights. Science that shapes the world.
New York City
11 yrs, 8 mos on Twitter
3,809,954 29.6%
152.profile imageDr. Phil Metzger

Planetary scientist at @UCF. CoFounder NASA KSC SwampWorks. Space Mining. Space Settlement. Science. Instagram @drphiltill
Orlando, FL
7 yrs, 1 mo on Twitter
73,888 29.6%
153.profile imageHannah Wakeford

(she/her) Exoplanet explorer learning about their atmospheres | Giacconi Fellow @STScI/@AURADC, @exo_cast podcaster & @BSACDIVER | Expressed opinions are my own
8 yrs, 4 mos on Twitter
3,017 29.6%
154.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, 10 mos on Twitter
68,404 29.4%
155.profile imageJesse Shanahan

Lead data scientist @BoozAllen. Astrophysicist. Passions: #AIEthics, video/boardgame #a11y, & 🍟. Cofounded @AAS_WGAD, created #disabledandSTEM. #EhlersDanlos
Washington, DC
8 yrs, 7 mos on Twitter
5,762 29.4%
156.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
8 yrs, 6 mos on Twitter
2,513 29.4%
157.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, 9 mos on Twitter
1,482,330 29.2%
158.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, 7 mos on Twitter
21,264 29.2%
159.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, 10 mos on Twitter
6,756 29.2%
160.profile imageJohn O'Meara

Father, Astronomer, science policy nerd. Chief Scientist @keckobservatory Cosmic Origins Science Lead for #LUVOIR Chair AAAC. Tweets are my own. (he/him)
Kamuela, Hawaii
10 yrs, 4 mos on Twitter
1,792 29.2%
161.profile imageNYT Science

Science, Medicine, Environment, Space and Cosmos. Sync your calendar with the solar system: nyti.ms/2ECMtej
New York, NY
12 yrs, 10 mos on Twitter
1,174,404 28.9%
162.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, 11 mos on Twitter
843,616 28.9%
163.profile imageJonathan Fortney

@ucsc Professor & Director of Other Worlds Laboratory. Modeler of planetary atmospheres & interiors. Father, Partner, Listener, Softballer, Runner, Minnesotan
Santa Cruz, CA
7 yrs, 11 mos on Twitter
3,051 28.9%
164.profile imageHaley Gomez

I'm an Astrophysicist, love books, films astronomy, shoes and dresses.
10 yrs, 1 mo on Twitter
2,985 28.9%
165.profile imageEric Mamajek

Astronomer, dad, stars, (exo)planets. Statements and opinions posted here are my own. I don't respond to Twitter DM.
Sector 001
8 yrs, 11 mos on Twitter
2,820 28.9%
166.profile imagePHD Comics

Life (or the lack thereof) in Academia. Comic strip by Jorge Cham. Instagram.com/phd_comics
11 yrs, 6 mos on Twitter
246,228 28.7%
167.profile imageJessica Kirkpatrick

+‒‒‒—‒‒­ Jessica Ann Kirkpatrick, PhD ­‒‒‒‒‒‒+ +‒‒‒‒— Astrophysicist → Data Scientist ‒‒‒‒—+ @kittyplanets #catmom #scientist #techie #writer she/her
San Francisco, CA
10 yrs, 6 mos on Twitter
5,062 28.7%
168.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
10 yrs, 4 mos on Twitter
3,181 28.7%
169.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
9 yrs, 3 mos on Twitter
2,425 28.7%
170.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
8 yrs, 2 mos on Twitter
708,597 28.5%
171.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, 10 mos on Twitter
11,955 28.5%
172.profile imageAdrian Price-Whelan

astrophysics postdoc @ Flatiron Institute (CCA); galaxy dynamics, binary stars; music; github.com/adrn (he/him)
new york, ny
8 yrs, 7 mos on Twitter
2,510 28.5%
173.profile imageDr. Ian O'Neill

Solar physicist, science communicator, science advisor, sci-fi author wannabe. Patiently awaiting the AI takeover. @AstroSocietyPac #MercuryOnline editor.
Wherever Baby Yoda Lives
11 yrs, 5 mos on Twitter
36,610 28.3%
174.profile imageNRAO

The National Radio Astronomy Observatory is a facility of the National Science Foundation. Social media policy: bit.ly/2qNhpB3
Charlottesville, VA
11 yrs, 3 mos on Twitter
24,574 28.3%
175.profile imageBlackPhysicists

Arlington, VA and Worldwide
10 yrs, 7 mos on Twitter
21,414 28.3%
176.profile imageJoss Bland-Hawthorn

All things novel, astrophysical, mathematical, technological.
Sydney, Australia
5 yrs, 7 mos on Twitter
2,161 28.3%
177.profile imageLaura Lopez

Astronomy professor @ohiostate studying birth & death of stars with all of the telescopes. She/her
7 yrs, 2 mos on Twitter
1,949 28.3%
178.profile imageTim Peake

British ESA astronaut & test pilot back on Earth after 6 months in space.
Cologne, Germany
7 yrs, 9 mos on Twitter
1,597,190 28.1%
179.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
10 yrs, 2 mos on Twitter
20,804 28.1%
180.profile imageAmerican Astronomical Society (AAS)

Official account of the American Astronomical Society. Its mission is to enhance & share humanity's scientific understanding of the universe. Tweet≠endorsement
Washington, DC, USA
9 yrs, 2 mos on Twitter
4,729 28.1%
181.profile imageBenjamin Pope

Astronomer - he/him
Manhattan, NY
7 yrs, 0 mos on Twitter
2,704 28.1%
182.profile imageDr. Abbie⛄

Lady scientist (she/her) 👩🏻‍💻 NSF fellow @msu_astro & @michiganastro 🔭 compact objects 💥 #OpenSource 🐍 #SciComm 🌟 #BiInSci 💖 tweets≠NSF,MSU,UM
Anishinaabeg/Odawa land
8 yrs, 11 mos on Twitter
2,344 28.1%
183.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)
2,275 28.1%
184.profile imageErik Tollerud

Astrophysicist, Python coder, and general lover of nature in all its forms. Tweets are my own. He/him/his.
Baltimore, MD
10 yrs, 7 mos on Twitter
2,078 28.1%
185.profile imageScott Kelly

Ret US Navy Capt & Former NASA Astronaut | #YearInSpace | @KepplerSpeakers | NY Times Bestselling Author |#EnduranceMemoir #InfiniteWonder #MyJourneyToTheStars
10 yrs, 5 mos on Twitter
5,576,249 27.9%
186.profile imageBobak Ferdowsi

Explorer of space. Engineer on NISAR Earth Science & Europa Clipper. Mars Curiosity, Cassini Saturn. Cat dad. Self-opinioned
Pasadena, CA
10 yrs, 5 mos on Twitter
123,793 27.9%
187.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.
10 yrs, 5 mos on Twitter
62,077 27.9%
188.profile imageRobert Simpson

Googler, astronomer, TED Fellow. Views are my own.
12 yrs, 9 mos on Twitter
30,755 27.9%
189.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, 7 mos on Twitter
484,194 27.6%
190.profile imageHubbleTelescope

News from the Hubble Space Telescope operated by @stsci
11 yrs, 7 mos on Twitter
146,373 27.6%
191.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
4 yrs, 5 mos on Twitter
6,325 27.6%
192.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.
9 yrs, 2 mos on Twitter
5,650 27.6%
193.profile imageWomanAstro

Promoting astronomy, encouraging women/girls interested in science. WomanAstro.com, etsy.com/shop/WomanAstro
New Mexico, USA
10 yrs, 1 mo on Twitter
5,007 27.6%
194.profile image.Astronomy

Conference series about what happens when hackers, astronomers and the web all get together.
Toronto, Ontario
11 yrs, 8 mos on Twitter
4,025 27.6%
195.profile imageKatey Alatalo

Ph.D. astronomer at STScI, currently housed at Carnegie. Space is amazing! My views are my own.
Pasadena, CA
11 yrs, 7 mos on Twitter
3,434 27.6%
196.profile imageJC Holbrook

Astrophysicist, Filmmaker, Cultural Astronomer. Hubble's Diverse Universe on Amazon.com BlackSunMovie.com videos.astroanthro.com/Science-Tourist
Kaapstad, ZA
10 yrs, 6 mos on Twitter
3,159 27.6%
197.profile imageSAO/NASA ADS

9 yrs, 1 mo on Twitter
2,871 27.6%
198.profile imageSPACE.com

News coverage and conversation about space science, astronomy and exploration. Part of @futureplc
11 yrs, 6 mos on Twitter
772,473 27.4%
199.profile imageESA Operations

From Earth orbit to deep space: sharing the excitement of realtime mission operations at the European Space Agency #WhereMissionsComeAlive 🛰🕹️ https://t.co/HNyRtNGOpq
Darmstadt, Germany
11 yrs, 2 mos on Twitter
287,256 27.4%
200.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
9 yrs, 5 mos on Twitter
6,550 27.4%
201.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, 8 mos on Twitter
1,442 27.4%
202.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
9 yrs, 5 mos on Twitter
570,434 27.2%
203.profile imageNASA's Dawn Mission

My mission has ended, but the science continues. Visit @NASASolarSystem for the latest.
Main Asteroid Belt
10 yrs, 2 mos on Twitter
234,320 27.2%
204.profile image☄Ashley🔭Lindalía☄

🚀🔭📡Astrochemist⚗🧪🔬|Planetary Scientist👩🏾‍🔬🌍|The Realest In The Streets|Rapper on Weekends🤦🏾‍♀️😂🤷🏾‍♀️|Magical & Trill💫|❤🖤💚#BlackandSTEM✊🏾✊🏿✊🏽
Chicago, IL, USA,🌍
9 yrs, 0 mos on Twitter
7,457 27.2%
205.profile imageJo Dunkley

Professor of Physics and Astrophysics at Princeton. Author of Our Universe: An Astronomer's Guide. She/her.
Princeton, NJ
8 yrs, 3 mos on Twitter
3,796 27.2%
206.profile imageScience Friday

Brain fun, for curious people. Hosted by @iraflatow. From @WNYCStudios.
New York, New York
11 yrs, 3 mos on Twitter
764,073 27.0%
207.profile imageThomas Zurbuchen

Associate Administrator, @NASA Science Mission Directorate
Washington, DC
8 yrs, 10 mos on Twitter
28,554 27.0%
208.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, 8 mos on Twitter
3,009,994 26.8%
209.profile imageNational Science Foundation

Explore #NSFfunded research that is transforming the world. / Social media policy: bit.ly/smpnsf
Alexandria, VA
11 yrs, 4 mos on Twitter
1,161,420 26.8%
210.profile imageDianna Cowern

Science YouTuber in her own universe. #MIT physics. Please respond to tweets w/ bad puns. I HAZ PATREON!
8000 pc from Sagittarius A*
7 yrs, 10 mos on Twitter
129,573 26.8%
211.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, 10 mos on Twitter
109,944 26.5%
212.profile imageRose DF

Physics. Astronomy. Astronautics. | She/Her/Ella | Con pies en la tierra, y corazón en el espacio | https://t.co/P9GDqV1WLx | Avatar by: Beth Kerner.
New York, NY
5 yrs, 4 mos on Twitter
23,893 26.5%
213.profile imageLisa Grossman

Astronomy reporter at Science News, lifelong astronomy nerd. Ideas my own. She/her/hers
Cambridge, MA
10 yrs, 11 mos on Twitter
9,148 26.5%
214.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, 8 mos on Twitter
177,062 26.3%
215.profile imageMoiya McTier

Astrophysicist, Folklorist, & Science communicator | Host of ExoLore at @caveatnyc | #scicomm #BiInSci #BlackAndSTEM | she/her
New York, NY
5 yrs, 6 mos on Twitter
3,909 26.3%
216.profile imageAstropy

This is the official twitter account for the Astropy project.
8 yrs, 6 mos on Twitter
3,540 26.3%
217.profile imageGreta Thunberg

17 year old climate and environmental activist with Asperger’s #climatestrike #fridaysforfuture
1 yr, 7 mos on Twitter
3,978,457 26.1%
218.profile imageWIRED Science

Bringing the radiothermally generated heat. The team: @sandraupson, @JetJocko, @MeganMolteni, @MrMattSimon, @dmoberhaus
San Francisco, California
12 yrs, 4 mos on Twitter
2,033,705 26.1%
219.profile imageNASA_TESS

This is the official @NASA Twitter for the Transiting Exoplanet Survey Satellite (TESS). @NASA_TESS is performing an all-sky survey to discover exoplanets.
Goddard Space Flight Center
6 yrs, 4 mos on Twitter
54,024 26.1%
220.profile imageMetallic Hydrogen STEMLORD

Nanotechnology, Molecular Biology| purveyor of finest quality theoretical apocalypses| Scientist | [email protected]| Aussie in Kiwi
Tāmaki-Makaurau, Aotearoa (New Zealand)
9 yrs, 4 mos on Twitter
38,696 26.1%
221.profile imageGiant Magellan

A next-generation “Extremely Large Telescope” seeking to unlock the mysteries of the universe. For content in Spanish, follow @GMTelescope_esp.
Las Campanas, Chile
8 yrs, 8 mos on Twitter
7,221 26.1%
222.profile imageSamantha Cristoforetti

@ESA astronaut. ISS Exp 42/43 Book in Italian amzn.to/2xNnkc6. In German tiny.cc/3wd3bz. In English in 2020! Proceeds to @Unicef.
8 yrs, 6 mos on Twitter
980,742 25.9%
223.profile imageSabine Hossenfelder

Physicist, blogger, author. Sometimes-songwriter, nighttime-philosopher. Maker of my own misery. she/her
12 yrs, 1 mo on Twitter
34,714 25.9%
224.profile imageDr Tabetha Boyajian

Assistant professor of Astrophysics at #LSU. disrupter of astrophysics; #BoyajiansStar #TabbysStar; all posts here are my own; She/her
Baton Rouge, LA
10 yrs, 5 mos on Twitter
9,884 25.9%
225.profile imageStuart

Maker of things. Data wrangler. Co-author of "Cosmos: The Infographic Book of Space". Gone far on a bicycle. ✨📡🛰📕📊📈🗺️🚲🏳️‍🌈 He/him
12 yrs, 7 mos on Twitter
8,112 25.9%
226.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
9 yrs, 6 mos on Twitter until last tweet (2018-Nov-10)
1,508 25.9%
227.profile imageJonathan Amos

BBC Science Correspondent
Cambridge, UK
10 yrs, 0 mos on Twitter
45,533 25.7%
228.profile imageDr Dr Matt Taylor

I work at the European Space Agency on Comet Interceptor, Rosetta, Swarm, Cluster + a little bit of the Gateway on the side. 501st Dutch Garrison TK67676 EIB
7 yrs, 4 mos on Twitter
33,030 25.7%
229.profile imageLiz B ☆

X-ray and Optical Astronomer at @ESO. ex Instrument Scientist. Bleeding heart liberal & intersectional feminist. All views my own. Ⓥ #WomenInScience She/Her
Edinburgh, Scotland
7 yrs, 10 mos on Twitter
1,771 25.7%
230.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)
14,959,884 25.4%
231.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
12 yrs, 0 mos on Twitter
187,481 25.4%
232.profile imageDNLee

#JrProf, Mammalogist, Diversity & Access to STEM, Unapologetically Intersectional, Mama Panyabuku, TED Fellow, NatGeo Emerging Explorer, #DispatchesDNLee
Midwest, US; Tanzania, Africa
9 yrs, 5 mos on Twitter
32,352 25.4%
233.profile imageSquareKilometreArray

The SKA will be the world's largest radio telescope, located in Africa & Australia. Tweets from the SKA's Global Headquarters in the UK.
Australia and South Africa
9 yrs, 3 mos on Twitter
21,093 25.4%
234.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
3 yrs, 5 mos on Twitter
14,232 25.4%
235.profile imageXKCD Comic

XKCD comic feed with images and mobile friendly links. Unofficial, run by @dghubble
6 yrs, 1 mo on Twitter
254,920 25.2%
236.profile imageJim Al-Khalili

@UniofSurrey Distinguished Chair in physics, author, broadcaster, humanist. "Affable Egghead" (Sunday Times). Author of forthcoming #TheWorldAccordingtoPhysics
University of Surrey
10 yrs, 0 mos on Twitter
143,506 25.2%
237.profile imageDaniel Fischer

All things astronomy and space (and then some) - in tiny bits and pieces but mostly with links to more ... :-)
Königswinter, Germany
11 yrs, 3 mos on Twitter
13,352 25.2%
238.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, 11 mos on Twitter
7,467 25.2%
239.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
8 yrs, 2 mos on Twitter
2,135 25.0%
240.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, 7 mos on Twitter
39,624 24.8%
241.profile imageDr Jen Gupta

Professional space nerd. Expect astronomy, physics, science, sci-fi, outreach, public engagement, dogs, parenting, emo & general geekiness. Own views. [she/her]
Winchester, UK
10 yrs, 5 mos on Twitter
5,114 24.8%
242.profile imageAngela Speck

Tattooed witchy astrolator; stellar mortician, empress of the eclipse, queen of astromineralogy; SJW; currently living in South Texas -She/Her/Hers-
Columbia, MO
8 yrs, 9 mos on Twitter
2,137 24.8%
243.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.
London, UK
10 yrs, 9 mos on Twitter
274,067 24.6%
244.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, 9 mos on Twitter
136,452 24.6%
245.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, 7 mos on Twitter
85,210 24.6%
246.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
5 yrs, 5 mos on Twitter
73,542 24.6%
247.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
9 yrs, 5 mos on Twitter
2,991 24.6%
248.profile imageDustin Lang

Astronomer at @Perimeter. Farm-raised left-handed vegetarian Canadian socialist. Tweets often astronomical/computational/scatological. he/Dr
Waterloo, Canada
6 yrs, 0 mos on Twitter
1,661 24.6%
249.profile imageNature

International weekly journal of science. Editorials, News & Views, Comment, Careers and primary research coverage here. For news, please see @NatureNews.
7 yrs, 11 mos on Twitter
1,682,214 24.3%
250.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)
1,085,689 24.3%
251.profile imagegalaxyzoo

It's Galaxy Zoo!
11 yrs, 0 mos on Twitter
13,709 24.3%
252.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
9 yrs, 3 mos on Twitter
8,391 24.3%
253.profile imageAndy Rivkin

Planetary astronomer on #TeamAsteroid; Gedankenband member and guitarist; Persistently Obstreperous. He/him הנני
#USAstronomyGoodwillAmbassador ⊗
11 yrs, 7 mos on Twitter
5,293 24.3%
254.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.
8 yrs, 2 mos on Twitter
1,622 24.3%
255.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, 10 mos on Twitter
1,067,680 24.1%
256.profile imageRobert Massey

Dad, Deputy Director @royalastrosoc, chair @lightyear_fdn. Co-author of Moon: Art, Science, Culture w/ @saschaloske. See bit.ly/2PpjMn0 #shortking he/him
Bristol (Southville) & London
10 yrs, 5 mos on Twitter
3,232 24.1%
257.profile imageDr. Brian May

Rocket Ship Builder 🚀🚀🚀🚀🚀
7 yrs, 3 mos on Twitter
1,029,404 23.9%
258.profile imageAmy Mainzer

University of Arizona
6 yrs, 11 mos on Twitter
27,006 23.9%
259.profile imageArfon Smith

Head of Data Science @stsci. Ex GitHubber. Zooniverse co-founder. Editor-in-chief of the Journal of Open Source Software • https://t.co/C7TiAzKbkX
Baltimore, MD
13 yrs, 0 mos on Twitter
4,521 23.9%
260.profile imageJuan Carlos Munoz

Astronomer at @ESO. Deciphering how galaxies work with huge telescopes in Chile. Outreach/Scicomm. ESO Photo Ambassador. Check my pics: instagram.com/astro_jcm
Santiago, Chile
3 yrs, 3 mos on Twitter
2,900 23.9%
261.profile imageCaroline Morley

Assistant Prof at UT Austin, modeler of substellar atmospheres
Austin, TX
7 yrs, 3 mos on Twitter
2,201 23.9%
262.profile imageDr. Caryl Gronwall

Astronomer at Penn State University
State College, PA
8 yrs, 10 mos on Twitter
1,379 23.9%
263.profile imageSarah Jane Schmidt

Astronomer currently based in Berlin/Potsdam, working on the coolest (lowest temperature and most awesome) stars. Works toward inclusion. She/her/hers.
8 yrs, 0 mos on Twitter
1,261 23.9%
264.profile imageStephanie Juneau

Associate Astronomer at @NatOIRLab. Scientist for @DataLabAstro. Coffee & dark chocolate addict. Fan of #blackHoles #art #sciart #rockclimbing
5 yrs, 7 mos on Twitter
1,111 23.9%
265.profile imageNational Geographic

Taking our understanding and awareness of the world further for 130 years
11 yrs, 2 mos on Twitter
23,636,859 23.7%
266.profile imageStephen Colbert

the guy on CBS
11 yrs, 4 mos on Twitter
18,720,599 23.7%
267.profile imageNancy Atkinson

Science journalist & author of new book on Apollo, "Eight Years to the Moon," amazon.com/gp/product/162
11 yrs, 7 mos on Twitter
11,470 23.7%
268.profile imageDan Hooper

Physicist and author at Fermilab and the University of Chicago
Chicago, IL
2 yrs, 2 mos on Twitter
6,395 23.7%
269.profile imageEmma Chapman

Astrophysicist, Royal Society Research Fellow, Imperial College London. Exhausted campaigner on sexual misconduct in HE.
London, England
3 yrs, 3 mos on Twitter
4,800 23.7%
270.profile imageDerek Fox

Astronomer and faculty member (he/him) at Penn State University. A personal Twitter account. "Where is everybody?" -E. Fermi
10 yrs, 10 mos on Twitter
2,493 23.7%
271.profile imageJonathan Pritchard

Imperial astrophysicist and bewildered vagabond. Reader. SKA enthusiast. @ERC_research funded (opinions mine, not employer's)
Richmond, London
9 yrs, 0 mos on Twitter
1,880 23.7%
272.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.
9 yrs, 0 mos on Twitter
58,564 23.5%
273.profile imageAndrew Pontzen

I do cosmology. Previously music. Prof at UCL, funded by Royal Society and ERC. Tweeting in a personal capacity: it’s no-one else’s fault when I talk nonsense.
9 yrs, 5 mos on Twitter
3,356 23.5%
274.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, 10 mos on Twitter
2,076 23.5%
275.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.
7 yrs, 7 mos on Twitter until last tweet (2019-Jan-11)
1,974 23.5%
276.profile imageGautham Narayan

Assistant Professor of Astronomy at @illinois_alma. Dark energy, wide-field surveys, supernovae, machine learning, outreach, photography, hiking. (He/him)
Champaign, IL
10 yrs, 2 mos on Twitter
1,324 23.5%
277.profile imageJohn Debes

STIS Team Lead @stsci. Works on @diskdetective, @backyardworlds, and @NASAWFIRST CGI. Exoplanets, white dwarf planets, and disks. My opinions are my own. He/Him
Geektown, USA
7 yrs, 2 mos on Twitter
1,239 23.5%
278.profile imageHillary Clinton

2016 Democratic Nominee, SecState, Senator, hair icon. Mom, Wife, Grandma x3, lawyer, advocate, fan of walks in the woods & standing up for our democracy.
New York, NY
6 yrs, 9 mos on Twitter
26,515,135 23.2%
279.profile imageSarafina Nance

I study supernovae & cosmology | Astrophysics PhD student @UCBerkeley | @NSF fellow | BRCA2 previvor making cancer my bitch | IG: @starstrickensf | she/her 🇪🇬
P.O.Box 457 Berkeley, CA 94701
4 yrs, 5 mos on Twitter
71,995 23.2%
280.profile imageDra. Nicole

CEO of Movement Consulting // Astronomy Ph.D. and STEM equity advocate // She/Her/Ella // #LatinaInSTEM // I have the best ideas
5 yrs, 3 mos on Twitter
2,649 23.2%
281.profile imageCourtney Dressing

Assistant professor of astronomy, exoplanet scientist, dog lover, gardener, baker, & crafter. Views are my own. #WomeninSTEM 👩‍🚀#lgbtstem 🏳️‍🌈 she/her
California, USA
5 yrs, 1 mo on Twitter
1,821 23.2%
282.profile imageBrian Greene

Physicist, Author, Co-founder @WorldSciFest
New York, NY
7 yrs, 7 mos on Twitter
1,008,760 23.0%
283.profile imageDr. Karen James

Scientist & outdoorswoman • DNA whisperer working on climate change • into botany, evolution, space, sci-comm, skiing, Outlander, climate justice & human rights
Unceded Wabanaki territory
11 yrs, 2 mos on Twitter
35,465 23.0%
284.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)
31,485 23.0%
285.profile imageKim Kowal Arcand

Visualization & emerging tech/X-ray astronomy; speaker; author; "Light from the Void" 20 Years of @chandraxray now out; opinions=my own; she/her
11 yrs, 10 mos on Twitter
9,079 23.0%
286.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, 10 mos on Twitter
5,015 23.0%
287.profile imageRadio Astrology

Opening new windows in the prediction spectrum. Astrology at long wavelengths.
In the stars (and the ISM)
8 yrs, 2 mos on Twitter
4,195 23.0%
288.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/London/Harwell, UK
10 yrs, 3 mos on Twitter
205,925 22.8%
289.profile imageJennifer Ouellette

Science and culture writer Jennifer Ouellette. Senior writer, Ars Technica. Past: Gizmodo. Ex-evangelical. Married to @seanmcarroll. She/her.
Los Angeles, CA
9 yrs, 9 mos on Twitter
38,881 22.8%
290.profile imageStuart Clark

Astronomer, journalist, author, lecturer. Beneath the Night (coming Sept 2020). Writes Starwatch and Spacewatch for The Guardian. Prog rock fan.
10 yrs, 8 mos on Twitter
34,804 22.8%
291.profile imageHistory of Astronomy

Multidisciplinary and multicultural history of astronomy #histastro by @VoulaSaridakis Ph.D. Curator, Museum of Science and Industry, Chicago @msichicago.
All tweets/views/opinions mine
4 yrs, 10 mos on Twitter
21,913 22.8%
292.profile imageChris North

Lecturer & astronomer @CardiffPHYSX. Co-author of cosmos-book.github.io + other books, semi-regular broadcaster. Comments own. [he/his]
Cardiff (normally)
10 yrs, 3 mos on Twitter
5,461 22.8%
293.profile imageBrant Robertson

Proud father of triplets. Theoretical astrophysicist, UC Santa Cruz (@ucsc). Former @UW, @Harvard, @UChicago, @Caltech, @UofA, @the_IAS.
Santa Cruz, CA
7 yrs, 5 mos on Twitter
1,259 22.8%
294.profile imageNASA's Kennedy Space Center

Official Tweets from NASA's Kennedy Space Center
Florida, USA
11 yrs, 3 mos on Twitter
1,578,919 22.6%
295.profile imageWill Gater

Astronomer | Journalist | Space geek 🌍 https://t.co/qdUaJi892Z 🔭 https://t.co/vtY0MvxbF8 🎫 Show dates & tickets: https://t.co/vQFc3wAD4z
11 yrs, 8 mos on Twitter
8,543 22.6%
296.profile imageSimon Porter

Astrophysicist on the @NASANewHorizons mission to Pluto, 2014 MU69, and beyond. Research Scientist at @SwRI. Space, plane, and train dork. Minor planet 11467.
Boulder, CO, 1 AU
6 yrs, 5 mos on Twitter
5,800 22.6%
297.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, 10 mos on Twitter
3,602 22.6%
298.profile imageAstro 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, 11 mos on Twitter
2,918 22.6%
299.profile imageStephen Serjeant is working to contract

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, 10 mos on Twitter
2,400 22.6%
300.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)
47,742 22.4%