Space
AstrobiologyNAI
NASA Astrobiology Institute: we study life in the Universe!916,091 followers | Follow
Asteroid Watch
JPL's Near Earth Object Office coordinates NASA's efforts to detect, track & characterize potentially hazardous asteroids & comets that could approach Earth.873,574 followers | Follow
Buzz Aldrin
Astronaut, Apollo XI and Gemini 12; Doctorate from MIT in astronautics, Korean War veteran (fighter pilot of 66 missions). photo by Don Camp746,542 followers | Follow
Soichi Noguchi 野口 聡一
Long duration space flight on ISS! http://goo.gl/qmmf7 http://bit.ly/3ZMbEb http://bit.ly/bXNO6I http://bit.ly/bGfUrB http://linkd.in/ePb57v445,495 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.410,972 followers | Follow
Jose Hernandez
Retired NASA Astronaut and native of Stockton. Running for U.S. Congress in California's 10th District. Devoted husband, loving father, and a proud Democrat.233,608 followers | Follow
NASA Kepler
The Kepler Mission is designed to survey our region of the Milky Way galaxy to discover Earth-size planets in the habitable zone.214,760 followers | Follow
NASAHurricane
NASA's Hurricane Web Page is one of the ONLY resources that provides data on ALL tropical cyclones around the world in one place!211,959 followers | Follow
CassiniSaturn
Cruising around Saturn, its moons and the magnificent rings194,010 followers | Follow
Spirit and Oppy
Roaming the Red Planet on six wheels since Jan 2004. The official mission Twitter of the Spirit and Opportunity rovers.152,729 followers | Follow
NASA Astronauts
Hear from all NASA's astronauts on Twitter, plus updates on astronaut activities here.135,878 followers | Follow
WeatherPlanet
Space & Astronautics News, NASA, NOAA, ESA, USGS, spaceflight, weather, astronomy120,431 followers | Follow
Douglas H. Wheelock
Test Pilot; NASA Astronaut: STS-120 & ISS-25; Space Station Commander; Living a life of faith inspired by quiet moments...107,201 followers | Follow
Curiosity Rover
NASA's next mission to Mars. I'm currently en route to the Red Planet. Arrival anticipated Aug. 5, 2012.101,275 followers | Follow
Nicole Stott
NASA Astronaut STS-128, ISS Expeditions 20/21, STS-129, STS-133. Aquanaut NEEMO 9.94,164 followers | Follow
Paolo Nespoli
European Space Agency Astronaut, Flight Engineer of ISS Expedition 26/27 (Dec 2010 - May 2011)66,464 followers | Follow
Johnson Space Center
NASA's JSC is the lead center for the International Space Station and the Orion spacecraft, and the home of the Mission Control Center and NASA astronaut corps.65,540 followers | Follow
Mark Kelly
52,566 followers | Follow
NASA Goddard
Tweeting the best in NASA astronomy, Earth sciences and robotic exploration for the Goddard Space Flight Center.47,276 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 #space46,883 followers | Follow
NASA Technology
The official Twitter account for NASA's Office of the Chief Technologist42,202 followers | Follow
NASAEyesOnTheEarth
Being rocket scientists isn't enough...we're climate scientists too! News from NASA on all things climate.37,965 followers | Follow
Virtual Astronomer
The Basil Fawlty of Astronomy, Science, Nature and more. Making Stargazing fun and accessible to all. Not your typical astronomer. Loves cycling & baking too.36,294 followers | Follow
Scott Kelly
31,532 followers | Follow
Discovery Space
The space topic hub for @Discovery_News. All things astronomy, physics, cosmology, spaceflight, NASA, exoplanets & more! (Administered by @astroengine.)28,182 followers | Follow
NASA Webb Telescope
NASA's James Webb Space Telescope will give us an amazing look at the universe! The project is working to a 2018 launch date.26,715 followers | Follow
LCROSS_NASA
NASA mission to explore the Moon to look for water ice at the poles! And I found it! My mission (and my tweets) ended Oct 9, 2009. But, I'm forever on the moon!25,275 followers | Follow
NASA Dryden
The Dryden Flight Research Center is NASA's primary center for atmospheric flight research and operations.24,166 followers | Follow
Sandy Magnus
23,033 followers | Follow
Earth Observatory
NASA images, stories, and discoveries about climate and the environment.22,690 followers | Follow
NASA Marshall News
News about NASA's Marshall Space Flight Center - Space Shuttle, Rockets, Science, Engineering, & Space Station Science.22,634 followers | Follow
Cady Coleman
22,375 followers | Follow
- NASA Wallops
22,373 followers | Follow
Space Fellowship
An international news and information network dedicated to the space industry.22,168 followers | Follow
NASA Goddard Images
@NASAGoddard is home to great pix, vids & visualizations. We Tweet the very best of them to you!20,586 followers | Follow
NASA Desert RATS
The NASA Desert RATS consists of multiple groups from NASA centers, universities, and other organizations. Goal: human-robotic systems for space exploration!20,387 followers | Follow
Mike Fossum
Astronaut, Husband, Father, Christian, USAF Col (Ret), Texas A&M, Eagle Scout, Scoutmaster, Grandfather. Former Commander of Expedition 29.19,557 followers | Follow
Lori Garver
Deputy Administrator, NASA. Updates are provided by me and the NASA team.19,436 followers | Follow
NewHorizons2015
The First Space Mission to Explore Planet Pluto and the Kuiper Belt19,359 followers | Follow
Chandra Observatory
Chandra's ongoing mission is to study the X-ray Universe, including black holes, new stars, and clusters of galaxies. Operated for NASA by SAO19,080 followers | Follow
Jeff Williams
19,016 followers | Follow
ISS Research
NASA's official source for research news from the International Space Station (ISS) - The world's laboratory in orbit.18,071 followers | Follow
NASA Watch
Covering NASA online since 1996. We're the source for NASA news.17,496 followers | Follow
Google Lunar X PRIZE
The official Google Lunar X PRIZE Twitter account. Going back to the moon, and taking you with us.15,630 followers | Follow
Universe Today
The official feed for Universe Today. You'll read our stories, and links to the best space news, photos and videos we can find.15,109 followers | Follow
NASA's Juno Mission
Trekking to Jupiter to improve our understanding of the planet’s origins and the formation of planetary systems everywhere. Also at www.nasa.gov/juno15,023 followers | Follow
Space Center Fan
Dedicated fan of Kennedy Space Center, tweeting launch dates, tours, tickets & events in Florida, NASA, Space & more! Follows back15,008 followers | Follow
NASA Spinoff
Since 1976, NASA's Spinoff publication has featured over 1,750 NASA-derived technologies that improve your life.14,977 followers | Follow
Astronomy Magazine
Astronomy informs, entertains, and inspires people who are interested in the science and hobby of astronomy.14,525 followers | Follow
ESA Planck
A European Space Agency (ESA) spacecraft to understand the origin and evolution of our Universe14,220 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!!! :)13,434 followers | Follow
NASA Blueshift
Blueshift: Bringing the Universe down to Earth with podcasts, blogs, and more!13,373 followers | Follow
ESA Science
Science @ the European Space Agency ESA, keeping you posted on European space science activities.13,162 followers | Follow
ISS National Lab
As the Nation's newest national laboratory, the ISS will strengthen relationships for the advancement of science, technology, engineering, and mathematics.12,643 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.12,617 followers | Follow
NASAJPL Education
Space-related educational activities and resources for teachers and families from NASA's Jet Propulsion Laboratory.12,393 followers | Follow
KSC Visitor Complex
Tour behind the scenes, meet a real astronaut, get vertical on the Shuttle Launch Experience, walk beneath a moon rocket and see 3D IMAX space films.12,385 followers | Follow
WI Astronomy
A Wisconsin based Space and Astronomy News public outreach website.11,156 followers | Follow
AF Space Command
Official Air Force Space Command Twitter: Stay up to date on all things AF Space!11,088 followers | Follow
ESA Herschel
A European Space Agency (ESA) mission. Both the most sensitive far-infrared telescope ever put into space &, at 3.5m, the largest space telescope of any kind.10,576 followers | Follow
Christopher Ferguson
Former NASA Astronaut. Currently with the Boeing company working on the CST-100.10,465 followers | Follow
Spacevidcast
Making Space Commonplace! New media company looking to the stars.9,950 followers | Follow
Epoch Times Space
The Epoch Times in #Space: Get the latest #astronomical headlines about all the news happening in our #universe!9,878 followers | Follow
U.S. HSF Committee
The Committee will conduct an independent review of ongoing U.S. human space flight plans and programs, as well as alternatives.9,514 followers | Follow
Astronomy Update
8,516 followers | Follow
Space Weather
We keep tabs on the space environment around the Earth as it is disturbed by the variable output of particles & radiation from the Sun. A service of @SpaceRef.8,140 followers | Follow
Spitzer Telescope
Capturing the infrared spectrum since 2003. For the official feed follow @NASAspitzer.7,759 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 explorer7,683 followers | Follow
Solar Stormwatch
We're building a prediction of Earth-bound solar storms, using classifications made by Solar Stormwatch members.7,464 followers | Follow
NOAA Satellites
NOAA Satellite and Information Service - The Office of Satellite and Product Operations highlights satellite imagery, hazard products, direct services, etc.7,188 followers | Follow
NASA Education
7,110 followers | Follow
Asteroids and Comets
Reports asteroids and comets closest approaches to earth7,102 followers | Follow
Hubble Daily Image
Get a picture of the day from the Hubble Space Telescope, NASA's famed orbiting observatory.6,622 followers | Follow
NASA's Dawn Mission
The first true spaceship with two ports of call, the most massive objects in the asteroid belt: Vesta and Ceres. Tweets from Dawn's outreach & media team6,459 followers | Follow
Infrared observatory
NASA's Spitzer Space Telescope - the infrared Great Observatory. Observes asteroids, comets, extrasolar planets, stars, galaxies and more...6,150 followers | Follow
NASA_NEEMO
NEEMO -- the NASA Extreme Environment Mission Operations project -- sends groups of explorers to live in Aquarius, an underwater lab.6,032 followers | Follow
NASA Glory
NASA's new aerosol, total solar irradiance, and climate obsessed low-earth orbiting satellite. Launches in 2011!5,512 followers | Follow
Neil Armstrong
Space: 1 giant leap for mankind. ( name is a tribute! ;D ) Follow to find out what is going on in mankind's quest for the stars!5,321 followers | Follow
Daniel Fischer
All things astronomy and space (and then some) - in tiny bits and pieces but mostly with links to more ... :-)4,821 followers | Follow
William Pomerantz
Vice President for Special Projects at Virgin Galactic. Former head of the $30 million Google Lunar X PRIZE. Opinions here are my own, not my employer's.4,804 followers | Follow
Skymaps.com
Quality sky maps and star charts for skywatchers, educators and publishers.4,735 followers | Follow
Space News Intl.
A weekly international newspaper for the global space community.4,513 followers | Follow
ATKRocketNews
Official news and updates for ATK’s Propulsion Systems including launches, ground tests and other milestones.4,469 followers | Follow
Dr. Bruce Betts
A planetary scientist giving you fun random space facts and easy astronomy in a short attention span format.4,341 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.3,876 followers | Follow
Space Weather
The latest space weather updates from The Weather Channel. Covering weather's impact on spaceflight and the effect of solar activity on Earth.3,777 followers | Follow
Irene Klotz
Journalist specializing in NASA, space science, commercial space. Media consultant.3,591 followers | Follow
Space Launch News
Real time #space news coverage of world launches & missions from Cape Canaveral. #NASA #ESA3,504 followers | Follow
Cosmic Log
Here's where you can get the autofeed for Alan Boyle's Cosmic Log items when they're published.3,447 followers | Follow
Airborne Science
NASA Airborne Science Program. We are NASA flying science laboratories!3,378 followers | Follow
NASA Marshall Center
NASA's 19th annual Great Moonbuggy Race, April 13-14, 20123,374 followers | Follow
Gov 2.0 Radio
The voices of connected govt. e-Gov / Gov 2.0 / Open Gov for Fed State & Local public sectors, tech leaders + civic innovators. Hosts @allisonhornery @johnW3LLS3,267 followers | Follow
NASA's MAVEN Mission
MAVEN, set to launch in 2013, will explore Mars' upper atmosphere, ionosphere & interactions with the sun & solar wind. http://lasp.colorado.edu/maven2,960 followers | Follow
Challenger Space Ctr
The only Challenger Space Center in Arizona! Space museum, STEM education center, public charitable institution & Smithsonian Affiliate. Open every day 10-4.2,832 followers | Follow
NWTT Aurora
See the greatest show on Earth, the breath-taking, spectacular Northern Lights, an incomparable experience. If you think we're exaggerating you haven't seen it.2,545 followers | Follow
Aurora Borealis
2,438 followers | Follow
SkyShare Network
Small field astronomy: planets, double stars, variables, exoplanets, planetary nebulae ... Love'em all2,288 followers | Follow
NASA Hack Space
You do not need permission to explore space. Fix NASA's stuff - or just do it yourself. A service of @SpaceRef.1,987 followers | Follow
NASA eClips
NASA eClips™ are short, relevant educational video segments. These videos inspire and engage students, helping them see real world connections.1,949 followers | Follow
Scott Bachmeier
Cooperative Institute for Meteorological Satellite Studies (CIMSS) Space Science and Engineering Center (SSEC) University of Wisconsin - Madison1,892 followers | Follow
CFNews13 Space Team
CFNews13 is your space station. The latest updates on human space flight, rocket launch, Kennedy Space Center & Cape Canaveral AFS.1,875 followers | Follow
SPACETRAiLS
#Headlines from orbit! Globally collected space/astronomy news gathered from different sources.LIVE coverage at special events. #Multilingual1,792 followers | Follow
Talking Space
The Talking Space Podcast: A Free and Open Exchange of Ideas and Opinions on All Things Space.1,753 followers | Follow
Space Mattters
Stories from the Space and Astronomy channels on Mattters. Astronauts. Academia. Professionals. Enthusiasts. Photos. Torture for all us anchored to the planet.1,656 followers | Follow
David Whitehouse
Writer, scientist, speaker, journalist. Author: The Moon: A Biography, The Sun: A Biography, One Small Step, Galileo.1,630 followers | Follow
Armagh Planetarium
Follow the offical Tweets from Armagh Planetarium, leading centre for astronomical education. Tweets are by Colin Johnston. Check out our website and blog!1,519 followers | Follow
shuttlestation
News related to the International Space Station. A service of @SpaceRef.1,508 followers | Follow
Commercial Space
Commercial space is a growing industry. We cover it from A to Z. A service from @SpaceRef.1,503 followers | Follow
SpaceTravel Magazine
UniGalactic is a Unique Print Magazine Covering Space Tourism as well as Space Travel and Exploration Industries.1,369 followers | Follow
WhiteLabelSpace Feed
www.whitelabelspace.com Upcoming GLXP Space Tech Startup1,225 followers | Follow
Holland Space Center
The Specialists !!! Every day Inspired by @ESA and @astro_andre.Our mission: to inspire youngster to learn all about space Att: #spacetweetup & #AndréTweetup1,221 followers | Follow
TRMM & GPM Missions
Official acct. of NASA's Precipitation Measurement Missions. Get the latest GPM, TRMM, and ground validation news, and learn about Earth's weather and climate.1,147 followers | Follow
NASA S'COOL
Cloud observations – from students & citizen scientists like you – provide NASA one more piece of the puzzle of how clouds affect our weather & climate.848 followers | Follow
Irish Astronomy
815 followers | Follow
Solar Flair
674 followers | Follow
NASA MMS Mission
The Magnetospheric Multiscale(MMS)mission is comprised of four identically instrumented spacecraft that will study the microphysics of magnetic reconnection.588 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。540 followers | Follow
Keck Observatory
535 followers | Follow
USGS Alaska
USGS_SpecEider tweets will provide near real-time information from the USGS Spectacled Eider satellite telemetry project.513 followers | Follow
FutureSpaceUSA
The future of space exploration in the United States is at a crossroads with no clear direction in sight. Learn more by visiting www.FutureSpaceUSA.com.505 followers | Follow
paul doyle
Ireland based Computer scientist, but my passion is Space and Astronomy395 followers | Follow
German Wallace
Cosmologist, Astro Photographer, Hilton Head Realtor(the first two don't make any $), Dad, Husband, Soccer Fan, Golfer, Surfer365 followers | Follow
Astronomy News
Live breaking Astronomy news. Powered by TopicFire HeatRank. Tweeting only 10/10 ranked news. You should follow us with your mobile phone!328 followers | Follow
IceInSpace
IceInSpace is dedicated to promoting amateur astronomy. We aim to help stargazers from around the world discover, discuss and enjoy the beauty of our night sky.258 followers | Follow
Space Astrotivity
Tweet with love content about astronomy, space, science or physics. Creator @CynthiaY29212 followers | Follow
Twisst ISS alerts
Don't follow me, follow @twisst to get the ISS alerts. I'm just the messenger.206 followers | Follow
SOAR Magazine
49 followers | Follow
