Astronomy
AstrobiologyNAI
NASA Astrobiology Institute: we study life in the Universe!916,028 followers | Follow
Astro Pic Of The Day
Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.413,018 followers | Follow
Jodrell Bank
Home of the world's third-largest steerable radio telescope, and the MERLIN National Facility. Part of the University of Manchester.227,217 followers | Follow
CassiniSaturn
Cruising around Saturn, its moons and the magnificent rings194,267 followers | Follow
WeatherPlanet
Space & Astronautics News, NASA, NOAA, ESA, USGS, spaceflight, weather, astronomy120,366 followers | Follow
Twisst ISS alerts
Twisst sends you a tweet when the international space station (ISS) will be visible at your location. Created by journalist/webdeveloper @tjaap. #science #space46,885 followers | Follow
Bob Richards
Space entrepreneur. Orphan of Apollo. A Founder of the International Space University, Singularity University, SEDS, Odyssey Moon & Moon Express (CEO).38,143 followers | Follow
Space Fellowship
An international news and information network dedicated to the space industry.22,165 followers | Follow
NewHorizons2015
The First Space Mission to Explore Planet Pluto and the Kuiper Belt19,426 followers | Follow
Jeff Williams
19,047 followers | Follow
David Bradley
Science news, views, interviews and tech talk from Science Writer David Bradley based in Cambridge, England, UK. First solo book coming soon - Deceived Wisdom.17,262 followers | Follow
Google Lunar X PRIZE
The official Google Lunar X PRIZE Twitter account. Going back to the moon, and taking you with us.15,692 followers | Follow
Emily Lakdawalla
I'm the Planetary Society blogger, once a planetary geologist, now a writer and mom, writing about great space images and mission news.14,873 followers | Follow
Roger Toennis
Former Rocket Scientist. Currently Exploring the Social Media Supernova, Making Jump 2 Hyperspace as CEO of Liquid Media. Father, Futurist, Homebrewer, Human.14,547 followers | Follow
Astronomy Tweets
Talking about astronomy, planets, earth and space issues and concerns impacting our atmosphere - YES I follow back and promise you there will be ZERO DMs!!! :)13,435 followers | Follow
Brian Dunning
Science writer. Host and producer of Skeptoid, available on Internets and radio stations near you.13,242 followers | Follow
Sky and Telescope
The Essential Magazine of Astronomy. Sky and Telescope is the world's leading compendium of information about the science and hobby of astronomy.12,667 followers | Follow
Pamela L. Gay
Communicating astronomy and life in academia 1 sidereal day at a time.10,463 followers | Follow
Spacevidcast
Making Space Commonplace! New media company looking to the stars.9,981 followers | Follow
NASA CoLab
NASA CoLab connects communities inside and outside NASA to collaborate.9,901 followers | Follow
Carolyn Porco
Planetary scientist, leader of the Cassini imaging team, director of CICLOPS, & author-to-be. Opinions are my own.9,168 followers | Follow
Spitzer Telescope
Capturing the infrared spectrum since 2003. For the official feed follow @NASAspitzer.7,781 followers | Follow
WISE mission — NASA
NASA's Wide-field Infrared Survey Explorer: Mapping the Sky in Infrared Light. Keywords: NASA WISE spacecraft wide field infrared survey explorer7,717 followers | Follow
Jen Scheer
Former Space Shuttle technician. Artist, photographer, inventor. Space Tweep Society founder, @FragileOasis contributor, and 2010 Shorty Award winner.6,570 followers | Follow
Exoplanetology.com
The Art and Science of New Worlds. Explores the impact of Exoplanet discoveries on Humanity's Culture and Future. http://bit.ly/Twanifesto6,447 followers | Follow
NASA Glory
NASA's new aerosol, total solar irradiance, and climate obsessed low-earth orbiting satellite. Launches in 2011!5,532 followers | Follow
Lucy Rogers
Fellow Institution of Mechanical Engineers, Fellow Royal Astronomical Society, Author. Saving the world from space debris.5,393 followers | Follow
Daniel Fischer
All things astronomy and space (and then some) - in tiny bits and pieces but mostly with links to more ... :-)4,826 followers | Follow
Dr. David Warmflash
Astrobiologist, science communicator, physician, health & fitness advocate, scientific pantheist, defender of science, likes ancient Phoenicia-Israel & Greece4,598 followers | Follow
Gene J. Mikulka
Spaceflight Observer Producer & Editor, Talking Space Panelist, Amateur Astronomer, Grad Student, House Rabbit Advocate. Opinions here are my own.3,937 followers | Follow
AstroSpaceNow.com
We obsessively track breaking news and interesting content about astronomy and space exploration over the blogosphere and Twitter so you don't have to.3,882 followers | Follow
Stuart Clark
Astronomer, journalist, author and speaker. Author of The Sun Kings and The Sky's Dark Labyrinth trilogy, the history of astronomy – dramatised!3,777 followers | Follow
Space Launch News
Real time #space news coverage of world launches & missions from Cape Canaveral. #NASA #ESA3,526 followers | Follow
Erika Vick
Experience NASA! Former Space Shuttle engineer. My opinions are my own and do not necessarily reflect those of my employer.3,506 followers | Follow
Nick Howes
Astronomy Consultant, Science Writer for @esa . FRAS, @faulkestel Program Manager, Visiting Lecturer UCGLAM, STEM ambassador,Used to work with Ultravox.3,454 followers | Follow
Portal to Universe
Keep up to date with latest cutting-edge astronomy and space science breakthroughs via Portal To The Universe. (An original IYA2009 Project)2,250 followers | Follow
Rachel Hobson
Editor-in-Chief at @CRAFT & contributing writer @MAKE, hand embroidery-obsessed, massive space geek.2,243 followers | Follow
Susan Niebur
Women make up half the bodies in the solar system -- why not half the scientists?2,042 followers | Follow
SD Air & Space
1,992 followers | Follow
Bobbie Gilliam
I've been passionate about astronomy since I was a child. I hope to exchange pics of the night sky.1,765 followers | Follow
Talking Space
The Talking Space Podcast: A Free and Open Exchange of Ideas and Opinions on All Things Space.1,759 followers | Follow
Space Frontier
People dedicated to opening the space frontier to human settlement by advancing #NewSpace. Our advocates listed at http://twitter.com/#!/SpaceFrontier/advocates1,672 followers | Follow
TheSpacewriter
Science writer & voice-over artist, specializing in astronomy/space science; write/narrate articles, documentaries and Webcasts. I also have political views!1,662 followers | Follow
National Space Soc.
The National Space Society is an educational, grassroots, non-profit organization dedicated to the creation of a spacefaring civilization.1,656 followers | Follow
Emily Baldwin
Science Editor at EJR-Quartz for ESA (based at ESTEC), writer, runner, 2012 Gold Challenger. Opinions own. Blog: http://astroemz.blogspot.com/1,581 followers | Follow
Sarah Kendrew
Postdoc Astronomer-slash-Engineer, Max Planck Institute for Astronomy, Heidelberg1,491 followers | Follow
Paul Sutherland
Space and astronomy writer. The Sun Spaceman but freelance contributor to many papers. Author of Where Did Pluto Go? I run the Skymania News site.1,442 followers | Follow
NewSpace News
Follow @SpaceFrontier's @NewSpaceNews to stay informed about developments in entrepreneurial space. Editor: @JVTumber | Sponsored by @SpaceIsle1,305 followers | Follow
Brian Shiro
Tsunami scientist, environmentalist, runner, and wanna-be astronaut yearns to explore remote terrestrial & extra-terrestrial locations. Tweets are my own.1,303 followers | Follow
Hanny van Arkel
Guitar playin' biology teacher by day, discoverer (of @HannysVoorwerp) by night, science ambassador in between and lover of life 24/7.1,153 followers | Follow
Richie Jarvis
UK Astronomer, Astrophotographer, and presenter of Under British Skies on http://astronomy.fm each month...1,116 followers | Follow
Karen Masters
Astronomy researcher at University of Portsmouth (involved especially in Galaxy Zoo project and LOFAR-UK). Mother of two young children.1,072 followers | Follow
Misty Dawn
partially sighted,mildly HOH,Christian,ace,INFJ,synesthete,public radio nut,newsie,MVPSer,radio amateur,Greek/Latin by day,air/space by night,#PolishPride939 followers | Follow
aadhu ahid
astronomy enthusiast, stargazer, flashpacker, ex-lawyer, part-time lecturer, mostly harmless830 followers | Follow
New Astronomy Books
All new astronomy book releases posted on their publication day804 followers | Follow
Nick Soden
Studying electromechanics; into amateur astronomy, beatboxing, skiing, photography, CG, and pasta801 followers | Follow
Young Astronomers
Official Twitter account of the Young Astronomers! A website and community of young people interested in Astronomy.754 followers | Follow
Maia Weinstock
Editor and polymath; friend of the earth; lover of science, space, design + anteaters; strong supporter of women and girls; Lego tinkerer751 followers | Follow
Brightsurf.com
The latest science news stories, science current events, scientific research and discoveries in earth science, life science, space science.747 followers | Follow
John Pasco
Student of life, coding, web dev, astronomy and Buddhism. Wants to know why we can't all just get along and am doing my bit to help that637 followers | Follow
Jenni Ewart
Ducati-riding SciFi-lovin' Aussie mum of 2 kids & 2 Basenjis. I'm an airline Flight Dispatcher interested in Aviation, Space, Astronomy, MotoGP & #CSIROtweetup611 followers | Follow
Heavenlybot
I tweet pictures of astronomical objects every 1 hour.This is Twitter bot. 天体画像へのリンクをつぶやくbotです。544 followers | Follow
Armando Lee
Astrocamp Observatory is the Philippines' 1st Commercial Astronomical Observatory situated inside SM by the Bay Park. It is operated by Dr Armando Lee.410 followers | Follow
Paczynski_Scope
Utilizing gravitational microlensing to explore our Galaxy and beyond. Established in memory of astronomer Bohdan Paczynski (1940-2007).319 followers | Follow
8thContinentProject
The 8th Continent Project connects start-ups built on space technology – in energy, medicine, GPS, materials...nearly everything. We call it Space 2.0.291 followers | Follow
Douglas Pierre
Retired, Interests: Gardening, photography, classical music, Astronomy, bicycling, Politics176 followers | Follow
Rick Fienberg
Astronomer specializing in journalism, education, and public outreach. Spent 22 years with Sky & Telescope magazine; now with the American Astronomical Society.145 followers | Follow
CSimmerman
93 followers | Follow
evadot bot
I'm Hal, the Evadot bot. Sometimes I pretend I'm one of those cool Mars rovers...92 followers | Follow
WPS 't Gooi
Sterrenkijken & lezingen over sterren- en weerkunde voor iedereen in 't Gooi. Star parties and lectures over astronomy and meterology in 't Gooi, Netherlands52 followers | Follow
Laura Crow
Here to keep amateur astronomers informed about current astro events without all the technical crap37 followers | Follow
Thiago Cavalcanti
Writer that works with maya calendars and mesoamerican cultures.32 followers | Follow
