Astro & Space
Asteroid Watch
JPL's Near Earth Object Office coordinates NASA's efforts to detect, track & characterize potentially hazardous asteroids & comets that could approach Earth.872,359 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/ePb57v444,605 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.408,251 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.233,321 followers | Follow
The SETI Institute
We believe we are conducting the most profound search in human history — to know our beginnings and our place among the stars.217,531 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.214,479 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.152,598 followers | Follow
NASA Astronauts
Hear from all NASA's astronauts on Twitter, plus updates on astronaut activities here.135,637 followers | Follow
Curiosity Rover
NASA's next mission to Mars. I'm currently en route to the Red Planet. Arrival anticipated Aug. 5, 2012.101,049 followers | Follow
Nicole Stott
NASA Astronaut, STS-133, STS-128, STS-129 & ISS Expeditions 20/21. NEEMO 9.94,037 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.65,262 followers | Follow
Mark Kelly
52,514 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 #space46,775 followers | Follow
Caroline Mueller
Christian Visual Artist Photographer Loves God Prayer Jesus ProLife Conservative SocialMedia Earthquakes Entrepreneur my Photography Business Married2WadeGlover41,533 followers | Follow
Bob Richards
Space entrepreneur. Orphan of Apollo. A Founder of the International Space University, Singularity University, SEDS, Odyssey Moon & Moon Express (CEO).37,886 followers | Follow
NASAEyesOnTheEarth
Being rocket scientists isn't enough...we're climate scientists too! News from NASA on all things climate.37,883 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.36,285 followers | Follow
Scott Kelly
31,431 followers | Follow
Discovery Space
The space topic hub for @Discovery_News. All things astronomy, physics, cosmology, spaceflight, NASA, exoplanets & more! (Administered by @astroengine.)28,061 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.26,638 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!25,245 followers | Follow
NASA Dryden
The Dryden Flight Research Center is NASA's primary center for atmospheric flight research and operations.24,103 followers | Follow
Sandy Magnus
22,985 followers | Follow
Space Fellowship
An international news and information network dedicated to the space industry.22,169 followers | Follow
Col. Tim Kopra
U.S. Army Astronaut, International Space Station Expedition 20 (STS-127). Ask me what it’s like to be Army Strong from the Space Station at goarmy.com/space.19,842 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 SAO19,011 followers | Follow
Jeff Williams
19,008 followers | Follow
NASA Watch
Covering NASA online since 1996. We're the source for NASA news.17,435 followers | Follow
Stephen C. Rose
Obama12. http://shortformcontent.blogspot.com Writer composer poet, artist Civil Rights vet FF Abba, Jesus, Nietzsche Charles Sanders Peirce15,726 followers | Follow
Google Lunar X PRIZE
The official Google Lunar X PRIZE Twitter account. Going back to the moon, and taking you with us.15,554 followers | Follow
Space Center Fan
Dedicated fan of Kennedy Space Center, tweeting launch dates, tours, tickets & events in Florida, NASA, Space & more! Follows back15,013 followers | Follow
Astronomy Magazine
Astronomy informs, entertains, and inspires people who are interested in the science and hobby of astronomy.14,480 followers | Follow
ESA Planck
A European Space Agency (ESA) spacecraft to understand the origin and evolution of our Universe14,187 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!!! :)13,428 followers | Follow
NASA Blueshift
Blueshift: Bringing the Universe down to Earth with podcasts, blogs, and more!13,332 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.12,575 followers | Follow
WI Astronomy
A Wisconsin based Space and Astronomy News public outreach website.11,152 followers | Follow
PeterDiamandis
X PRIZE, Singularity Univ, Abundance, Rocket Racing, Space Adventures... passionate about space, innovation & creating a world of Abundance10,644 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.10,551 followers | Follow
Spacevidcast
Making Space Commonplace! New media company looking to the stars.9,917 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.9,501 followers | Follow
Singularity U
Nonprofit working to educate & inspire leaders to apply accelerating technologies to address global challenges! Next Exec Programs Oct 13-20; Dec 1-8, 20129,240 followers | Follow
SLOOH Space Camera
Slooh is the leader in live, celestial event programming with weekly shows featuring the great wonders of the Universe - shown live by observatories worldwide.8,578 followers | Follow
Spitzer Telescope
Capturing the infrared spectrum since 2003. For the official feed follow @NASAspitzer.7,732 followers | Follow
Dr. Ian O'Neill
Discovery News Space Producer. Recovering British solar physicist. Enjoys good beer, prefers tea. Toast & butter advocate. Hairy Atheist. 2012 doomsday debunker7,451 followers | Follow
A Geek Mom (Shannon)
Self-employed web geek; Space Tweep; Space Camp (1987) & NASATweetup alumnus since Nov. 2009 (STS-129 KSC). My tweets are my own.6,621 followers | Follow
Jen Scheer
Former Space Shuttle technician. Artist, photographer, inventor. Space Tweep Society founder, @FragileOasis contributor, and 2010 Shorty Award winner.6,544 followers | Follow
Adler Planetarium
The Adler Planetarium in Chicago invites you to join us in exploring space!6,487 followers | Follow
Space Tweep Society
The official Twitter account of the Space Tweep Society. Posting news & updates on society happenings. #STwS #spacetweeps5,963 followers | Follow
- Jeff Goldstein
-Astrophysicist, educator, writer, nat'l cntr director (http://ncesse.org), @Huffingtonpost blogger | Science education in a new light. Blog on the Universe5,914 followers | Follow
Year of Astronomy UK
Keep up to date with everything that's happening in the UK during the International Year of Astronomy 20095,590 followers | Follow
David Akermanis
Producer/DJ. Account Manager, Health/Digital @ Edelman. Tweets are my own, and don't reflect the opinions of my employer.5,408 followers | Follow
Lucy Rogers
Fellow Institution of Mechanical Engineers, Fellow Royal Astronomical Society, Author. Saving the world from space debris.5,374 followers | Follow
Daniel Fischer
All things astronomy and space (and then some) - in tiny bits and pieces but mostly with links to more ... :-)4,815 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.4,782 followers | Follow
Skymaps.com
Quality sky maps and star charts for skywatchers, educators and publishers.4,730 followers | Follow
Fundação Planetário
A Fundação Planetário tem como objetivo divulgar a Astronomia e ciências afins de maneira didática e interativa.3,991 followers | Follow
Gene J. Mikulka
Spaceflight Observer Producer & Editor, Talking Space Panelist, Amateur Astronomer, Grad Student, House Rabbit Advocate. Opinions here are my own.3,925 followers | Follow
RobertPearlman
Editor and Founder of collectSPACE.com: The Source for Space History and Artifacts, and 2009 Space Camp Hall of Fame inductee3,677 followers | Follow
Space Launch News
Real time #space news coverage of world launches & missions from Cape Canaveral. #NASA #ESA3,496 followers | Follow
Odyssey Moon Limited
1st @GLXP Team - Odyssey Moon is developing a commercial transportation system to deliver payloads to the Moon in support of science, exploration and commerce.3,429 followers | Follow
LunarOrbiter
Providing New Imagery and Data From the 1960's NASA Lunar Orbiter Missions For 21st Century Exploration3,256 followers | Follow
LPI_Library
The Library collection is primarily astronomy and geology. STS-133 NASA Tweetup attendee.2,845 followers | Follow
MT N Hellfire
Applied Geophysicist | Liberal ranch girl who loves wolves | Greeny enviro working in energy exploration | Slave to dogs and chickens2,701 followers | Follow
Amanda Stiles
Space, science, web dev and tech enthusiast. Technical Operations Manager for Google Lunar X PRIZE (@glxp).2,638 followers | Follow
Tim McGhee
An American with the heart of a Thessalonian, the soul of a Roman, the mind of a Berean, and the strength of a Colossian.2,608 followers | Follow
Joe Williams
NASA Rocket Scientist playing in intersection of Government and business. Husband, father, amateur photographer, MBA student. Cut me and I bleed burnt orange.2,593 followers | Follow
Scott Forman
Science Screen Report, an award winning classroom series (DVD/Streaming) designed to get kids interested in science. Provided free to schools.2,523 followers | Follow
David Dickinson
Science writer, teacher, and stargazer...chronicler of the technocene and budding Scifi deity. Looking forward to seeing the 2084 transit of Earth from Mars.2,457 followers | Follow
Galilean Nights
Take part in public observations of gas giant Jupiter, its moons, the Sun and our Moon 22-24 October 20092,312 followers | Follow
Andy Scheer
Former space shuttle technician now helping retire the program to make way for the future! My tweets are my own and do not reflect those of my employer or NASA.2,269 followers | Follow
Rachel Hobson
Editor-in-Chief at @CRAFT & contributing writer @MAKE, hand embroidery-obsessed, massive space geek.2,237 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)2,237 followers | Follow
Astronomy Telescopes
All about astronomy, telescopes, the universe and orion!2,016 followers | Follow
Elizabeth Howell
@obj_news journalist. @SpaceRef contributing editor. M.Sc. Space Studies candidate @myUND. Saw 3 shuttle launches. Met 2 Starfleet captains. Learning Russian.1,993 followers | Follow
Waddell Robey
Independent research writer/editor and exploration advocate, engineer,space-nut,amateur astronomer, old pilot, bold sailor, SCUBA lover.**CHESAPEAKE GUARDIAN**1,985 followers | Follow
spasmunkey
NASA physiologist, shuttle hugger, space geek. I love airplanes, science and Star Wars movies. Outdoorsy gal. My tweets are my own.1,976 followers | Follow
Tim Bailey
Catalyst, father of adventurous toddler, & proficient at zero gravity flips in multiple axes. SPACE IS AWESOME.1,881 followers | Follow
Craft Lass
A renaissance man trapped inside a modern woman. Singer/songwriter with a passion for inner and outer exploration of many kinds. Living tweetup.1,824 followers | Follow
Michael J. Laine
Think Big! There is a profound difference between 'difficult', 'very hard' and 'impossible'. We're building an Elevator to Space. Really. www.liftport.com1,769 followers | Follow
Dr. Heather Good
Heather Good EdD is editor of http://FoundonMars.com Attendee of STS-134 Tweetup!!1,690 followers | Follow
Joel Raupe
Principal Investigator, Lunar Pioneer Research Group; Promoting extended human activity on Earth's Moon1,684 followers | Follow
Ron Atkins
New Space Is A Place. And We're Going There! All the latest on SpaceX, Virgin Galactic, Bigelow Aerospace, XCOR, Blue Origin, et cetera. Go Yankees!1,645 followers | Follow
Patrick M.
There is simply nothing better than looking into deep space to soothe the mind and put things into perspective. IT & Content Geek. Spaceflight. Tech Rocks!1,644 followers | Follow
johnmknight
Geek Dad,Space Enthusiast, LEGO artist,Gamer, Photographer,Maker,Tech Guru,Comic book fan, steampunk,movie buff,writer,host of InterviewWithAGeek.com1,638 followers | Follow
mastenspace
Who are we? We build and fly reusable launch vehicles. It's an awesome job and amazing technology. Follow us for awesome videos and news. We fly.1,623 followers | Follow
Janelle Wilson
Earth sci teacher. STS-130 JSC & STS-132 launch #NASATweetUp alumna. Space geek, science nerd. Honeywell Educators@Space Camp 2011.1,556 followers | Follow
Liz Strand
Love NASA, Minnesota Twins, Gophers, Wild, TWolves, Lynx, Vikings, Zags, LMU +all WCC hoops, Gators, Tennis, Sarasota & Disney World1,509 followers | Follow
GaeA Astronomia
1,459 followers | Follow
Deirdre Kelleghan
Am an amateur astronomer, I paint and enjoy writing. Informal Educational Outreach for children http://www.deirdrekelleghan.net/blog.html1,392 followers | Follow
mrdoornbos
Founder of evadot.com and spaceupdc.org- there's a good chance I'll be voiding a warranty today1,370 followers | Follow
SpaceRef Canada
The leading source for news on Canada's space efforts covering the Canadian Space Agency, industry, academia, defence, space policy, exploration and more.1,358 followers | Follow
Brian Shiro
Tsunami scientist, environmentalist, runner, and wanna-be astronaut yearns to explore remote terrestrial & extra-terrestrial locations. Tweets are my own.1,304 followers | Follow
Rebecca Setzer
A star loving bird watching nature enthusiast with a knack for the knotting. I guess that makes me an AstroBirdKnitologist1,303 followers | Follow
Porchdragon
Chaotic, loud, energetic, fun-loving,25 year veteran physics teacher. National Board Certified and NASA MESSENGER Fellow. STANYS Physics DAL1,298 followers | Follow
Stephen Braham
Quantum Cosmologist turned Arctic-going IT-exploring Rocket Scientist1,288 followers | Follow
Mark Zaugg
SysAdmin (Windows, Mac, Linux), Space Cadet, Curler, Roadie, F1 Snob, Politico, Geocacher, Professional Babbler, The (Almost) Perfect Dad, Dweeboid at large.1,267 followers | Follow
Mark Kirkman
Aerospace Consultant, Space Geek, Pilot, Flight Engineer, Instructor, Mechanic, Space Media Analyst, Journalist?, Rocket Scientist?1,263 followers | Follow
James Moore
IT dude, believer, Third Day Gomer, musician, astronomer, Bama grad, JPL/NASA SSA, band parent, BSFer. Opinons are my own.1,241 followers | Follow
Odyssey Moon
Odyssey Moon is a commercial lunar enterprise pursuing the Google Lunar X PRIZE. PLEASE FOLLOW US AT @Odyssey_Moon (http://twitter.com/Odyssey_Moon)1,207 followers | Follow
Roger Weiss
NASA/JSC ISS Research; Certified NASA Nerd, Space Geek, Family Man, Beatles Freak, Celtic Music Fan; maybe also a bit o' a poet, but don't really know it.1,205 followers | Follow
Wynyard Planetarium
Astronomy based education and entertainment resources of Stockton-on-Tees Borough Council; supported by CaDAS & DAS. Tweets by Ed Restall (Director)1,185 followers | Follow
Catherine Baker
chemist, artist, dreamer, maker of things. Science, space, photography, aviation... http://www.flickr.com/photos/cmilesbaker http://cmilesbaker.wordpress.com1,138 followers | Follow
Cariann Higginbotham
Just an average girl interested in space and having fun. Hopefully together! Helping Making Space Commonplace.1,134 followers | Follow
Mike O'Hara
Dreamer of Space, Space Advocate and Blogger, Rocketeer. Evangelizing the benefits of space exploration. @Spacetweetup, @NASATweetup, and @NASAJuno Alum1,067 followers | Follow
Ryan Anderson
I study Mars and shoot things with lasers. I also read and blog and write. All tweets are my own.1,047 followers | Follow
daniel yount
Full fledged Linux geek http://www.facebook.com/people/Daniel-Yount/1355771393 http://www.myspace.com/icarusfactor1,019 followers | Follow
Daniel Larious
Once upon a time there was light in my life, but now there's only love in the dark.1,017 followers | Follow
Mark Benson
Computer nerd and IT pro, space geek, photography, sci-fi and watching motorcycle racing. #SWTOR RP guild GM (@ForceAcademy, LA). Tweets are my own opinion only1,017 followers | Follow
Bellatrix Orionis
Mad amateur astronomer interested in debating life the Universe and whether you'd get a decent cup of tea on a space journey1,017 followers | Follow
Elias Jordan
Astronomer/Astrophysicist, Journalist, Photographer, DJ, Student, mentally unstable....1,004 followers | Follow
Leslie in CyberSpace
MOM , NASA engineer , creative type ⚡, and just trying to keep sane in a world that is doing its thing at light speed!1,000 followers | Follow
Dr Adriana Caselotti
Particle Physicist & Space Enthusiast. Amateur astronomer.995 followers | Follow
Kimberly Ennico
A NASA scientist (on detail Boulder,CO). The sky is no longer the limit to what we can explore, learn & inspire us to go boldly where we have not been before.933 followers | Follow
Michael Salotti
Virginia State Parks, astronomy, geology, and anything dealing with nature. NASA STS-133 Tweetup916 followers | Follow
AstronomyCalgary
Calgary's top astronomy organizations (TELUS Spark, RASC, RAO) collaborate on public astronomy events around the city. Join us on Facebook.com/AstronomyCalgary895 followers | Follow
Canadian Astronomy
All about Canadian Astronomy: the latest in news, research and current events by Canadian Astronomers.877 followers | Follow
Mark Ratterman
FAA Electronics Tech, space exploration fan+married to 1 Talking Space Podcast with News, Interviews, Space Flight/Exploration... Look for me on Google +876 followers | Follow
O Astrofísico
874 followers | Follow
Julio Vannini
President of the Amateur Astronomers Society of Nicaragua (ANASA), Space Tweep, SEDA/LIADA NC, AWB NC, Trek fan and Free Software Promoter using OpenSuSE.864 followers | Follow
joelwalker
Work at NASA, have kids, pickup truck, dog. Love football and futbol.857 followers | Follow
Museu do Eclipse
Museu de Ciências e observatório que lembra o eclipse de 1919 em Sobral, Ceará. (Science Museum who remember the 1919 eclipse in Sobral, Ceará, Brazil)853 followers | Follow
Markus ★ Hammonds
Just some astrochemist with a head full of stars. A prolific procurer of presposterous propensities providing & pronouncing problematic predicaments.833 followers | Follow
Galactic Drifter
Possibly approaching the Solar System from the general direction of the star Alpha Cygni (Deneb). Why? Follow the Web link to learn more.829 followers | Follow
Charissa S.
*Burgh Verified* planetarium elf/laserist, #STS129 & @NASAGlenn #nasatweetup alum. Pittsburgh to the core. I JUST REALLY LOVE HOCKEY AND SPACE, GUYS.824 followers | Follow
Ciro Villa
Software Developer, Jazz, Astronomy, Technology Trends, Internet Trends, Social Trends, Current Events, Life, The Past, The Present, The Future.813 followers | Follow
New Astronomy Books
All new astronomy book releases posted on their publication day805 followers | Follow
LunarLanderChallenge
Northrop Grumman Lunar Lander Challenge, presented by X PRIZE, and prize money from NASA803 followers | Follow
Alexandru Csete
All-round nerd and space hacker. Known as OZ9AEC on the air from DC to 25 GHz.792 followers | Follow
danny.skarka
Director, Production at MediaOne. TV and Social Media guy. Astronaut wannabe.790 followers | Follow
Nick Soden
Studying electromechanics; into amateur astronomy, beatboxing, skiing, photography, CG, and pasta788 followers | Follow
David Evans
I have discovered 19 sungrazing comets with the SOHO Space Telescope. Main interest: h-alpha solar photography.759 followers | Follow
Eric Merrill
Programmer, Photographer, and Space Nut. Moodle programmer at Oakland University.754 followers | Follow
sophia dengo
Multimedia designer/storyteller. Space geek. @CNNLightYears contributor, NASATweetup alum & SXSWi '11 panelist. Words, views & expressions are my own.742 followers | Follow
North Essex Astro
Promoting astronomy in the local community, across all age groups, abilities and levels of interest. Tweets by David Warrington.672 followers | Follow
Richard Fleet
Interested in astronomy and atmospheric optics. Current vice-chairman of Newbury Astronomical Society616 followers | Follow
Stargazer93
Our newest client has gotten 362 new Fans in 36 hours with our Custom Fan Pages. How many did you get?612 followers | Follow
Kopernik Astro-Soc
The official Twitter Feed of the Kopernik Astronomical Society. The Universe's Splendor is within your reach. Tweets by @kreegan99589 followers | Follow
Jan DuRaine
Life is what you make it. Don't stop living till they close the lid.537 followers | Follow
nancy hine
Studying astronomy/physics with OU. Chartered Accountant. Counsellor. Astronomy, space exploration, SF, cycling, walking. Author of The Depression Trap.470 followers | Follow
Jim Hillhouse
Once an aerospace engineer. Currently in iPhone programming. Founder AmericaSpace.com and CocoaCoder.org444 followers | Follow
Peter Sherman
My main Interests are astronomy and Rugby. Here I will be twittering about all things astronomical along with a bit of rugger banter.416 followers | Follow
Charles Justiz
Author of Specific Impulse, corporate aviation consultant and former long time NASA pilot.396 followers | Follow
PULSE@Parkes
A CSIRO Astronomy and Space Science project allowing high school students to use the 64m Parkes radio telescope to observe pulsars.385 followers | Follow
John Pritchard
inet soft eng interested in space flight, esp open source engineering for robotic space flight. BG image http://bit.ly/DFRC-HL10 http://bit.ly/DRFC-HL10-Report369 followers | Follow
Meteorwatch USA
Back Up account, for when we reach our API limit during Meteorwatch! (@Ksastro, @VirtualAstro, @Zarquil)338 followers | Follow
Galileoscope
The Galileoscope is a high-quality, low-cost telescope kit developed for the International Year of Astronomy 2009.337 followers | Follow
Hal Hensley
I love most anything that involves astronomy, space, science, photography, music & computers.330 followers | Follow
Gemini Observatory
326 followers | Follow
Jeffrey Brown
Dad, disabled Navy veteran, Debian Linux systems/network wizard, philosopher, chess player, environmentalist.312 followers | Follow
Gary D. Evans
I am constantly curious about how the universe got here and believe Leonard Cohen's phrase: - Love is the only engine of survival - is accurate.307 followers | Follow
Lisa Kirsch
I'm a piano-playing, Mac-using, point-and-shooting, sci-fi-watching, pizza-eating, animal-loving, heat-avoiding, semi-nocturnal Space Tweep geek.301 followers | Follow
Gary S. Martin
NASA DFRC Lead Proj Mgr for Reimbursable Projs; husband of 32+ yrs; father of 2; grandfather of 3, St Malachy Church lector; road cyclist, CAP Sq Cmdr; K6AE.286 followers | Follow
Diana Trujillo
Space geek, NASA-JPL Aerospace Engineer whose dream is to become the 1st Colombian Female Astronaut!286 followers | Follow
Kennda Lynch
PhD Student at Colorado School of Mines: Astrobiologist. Artist. Engineer. Human.271 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.257 followers | Follow
Astro Phoenician
Moved from London, England Studied astrophysics Built optical & radio telecopes Advocate space program Work in global telecommunications #NASA #astronomy237 followers | Follow
Steven Leavitt
Fan of NASA and space exploration. Father of 2 boys. Red Sox Fan.235 followers | Follow
Mike Salway
Amateur Astronomer, Amateur Photography, Amateur Karate-Ka, Professional in IT231 followers | Follow
Laura Troutman
Parenting. Painting. Writing. Reading. Crafting. Love everything NASA and space related... (... I will be busy on May 17 2013!)224 followers | Follow
Tom Boulton
20yr old studying Space Tech & Planetary Exploration in 2nd year at The Uni of Surrey. Treasurer for UKSEDS with interests in Astronomy, F1 and Ultimate Frisbee198 followers | Follow
Stephens Observatory
Stephens Memorial Observatory's current mission is historic preservation, astronomy education, and public outreach.144 followers | Follow
Michael Simpson
Husband, father, grandfather, teacher, family historian, and Executive Director of the Secure World Foundation140 followers | Follow
Thomas Kennedy
MBA,economist,classical pianist,consultant, enjoy fine wine/dining,astronomy,pro basketball,running,auto racing,writing. Also http://Twitter.com/TheBearEconomy139 followers | Follow
Scott Reed
Hi I'm Scotty I'm in a wheel chair ,Its aways My dream i can talk NASA or with others NASA crews someday now with twitter i can do that125 followers | Follow
Gord Spence
Retired,background aviation and aerospace work. follow HSF programs with great interest.CFL NASCAR Curling Tennis fan119 followers | Follow
Brandon Rangel
Budding astronomer and interdisciplinary scientist stuck in the body of a not-so-understood high school genius112 followers | Follow
Mary Myers
103 followers | Follow
Peter Grego
102 followers | Follow
Sally Jensen
I love our universe and how we are exploring space. I also love frogs, a cool part of the various systems on earth.87 followers | Follow
Annette Iwamoto
31 year Elementary Teacher, National Board Certified, MESSENGER FELLOW,New Teacher Specialist35 followers | Follow
Keith Johnson
14 followers | Follow
