#1

therealBuzz Buzz Aldrin 635,488 followers (1 on this list)
Bio Astronaut, Apollo XI, Gemini 12, Doctorate from MIT in astronautics, married to Lois Aldrin for 21 years. Korean War veteran - fighter pilot of 66 missions
Location 34.071602,-118.427879
Web http://www.buzzaldrin...
Other lists:  defense, education, pilots, veterans

#2

SpaceAstro Space & Astronautics 126,180 followers (1 on this list)
Bio NASA, ESA, NOAA, USGS, astronomy, space, weather, hurricanes, oceans, Earth science, earthquakes, aerospace. Editor/Journalist. Also: @oceanechoes @helpanimals
Location Space & Astronautics News
Web http://space.gs
Other lists:  nasa, physics, science, tech-news, Weather_News, nasa

#3

twisst Twisst ISS alerts 25,409 followers
Bio Get alerts from this twitter account when international space station (ISS) will be passing over your exact location. Astronomy, science, @tjaap.
Location Netherlands
Web http://www.twisst.nl
Other lists:  astronomy, science

#4

nytimesscience NYTimes Science 16,853 followers
Bio Science, Enviornment, Space and Cosmos News From NYTimes.com/Science
Location New York, NY
Web http://www.nytimes.co...
Other lists:  media, news, nytimes

#5

wolowizard Howard Wolowitz 10,094 followers
Bio I design space components. I know six foreign languages. Ladies, I'm available — for now.
Location California, Earth, Milky Way G

Other lists:  languages

#6

SpaceflightNow Spaceflight Now 9,005 followers (1 on this list)
Bio The best source for space news
Location Cape Canaveral, Florida
Web http://spaceflightnow...

#7

LRO_NASA LRO_NASA 8,931 followers (1 on this list)
Bio I am NASA's 1st step back to the Moon! I am being built at NASA's Goddard Space Flight Center & # 3 on Times Best Inventions of 2008 : http://www.time.com/
Location Greenbelt, MD
Web http://lunar.gsfc.nas...

#8

astro_tim Col. Tim Kopra 8,667 followers
Bio 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.
Location International Space Station
Web http://www.goarmy.com...
Other lists:  astronaut

#9

georgeartz George Artz 6,495 followers
Bio Personal development, Mentoring for Free, http://gaartz.successin10steps.com/?mad=35669 Vitamark http://georgeartz.vitamark.com
Location Lismore, Australia (near east
Web http://2009workathome...
Other lists:  archaeology, astronomy, holiday

#10

apod Astro Pic Of The Day 4,231 followers (1 on this list)
Bio Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
Location Goddard Space Flight Center
Web http://apod.nasa.gov/...
Other lists:  astronomy

#11

Space_Astro Stop SpaceAstro 3,686 followers (1 on this list)
Bio A donkey in a pumpkin suit. Tweeting space news and promoting reliable space news tweeps. Also, a reality check to @SpaceAstro (formerly @Astronautics).
Location Teh Intertoobs
Web http://asstronautics....

#12

OdysseyMoon Odyssey Moon 2,773 followers
Bio Odyssey Moon is a commercial lunar enterprise pursuing the Google Lunar X PRIZE. PLEASE FOLLOW US AT @Odyssey_Moon (http://twitter.com/Odyssey_Moon)
Location Isle of Man, U.S. & Canada
Web http://odysseymoon.co...
Other lists:  space, space-exploration

#13

BANews Phil Plait 2,749 followers
Bio Breaking astro and space news, from @BadAstronomer
Location Boulder
Web http://blogs.discover...

#14

NASA_HSF U.S. HSF Committee 2,722 followers (1 on this list)
Bio The Committee will conduct an independent review of ongoing U.S. human space flight plans and programs, as well as alternatives.
Location Washington, DC
Web http://hsf.nasa.gov
Other lists:  government, nasa, space

#15

seniorpressnet Senior Press Net 2,462 followers
Bio senior press net - always on the move to tweet and report about Events, Travel, Lifestile, 4x4 Pickups, Rally Dakar, F1, ... Follow us, we follow back!
Location Buenos Aires, New York, Berlin
Web http://seniorpress.ne...
Other lists:  senior-citizens, toyota

#16

lifeinthegalaxy

Other lists:  spirituality

#17

Bob_Richards (1 on this list)

Other lists:  aerospace-aviation, astronomy, nasa, prizes, singularityu, Moon, ISU

#18

SpaceFellowship Space Fellowship (1 on this list)
Bio An international news and information network dedicated to the development of the alt/new space industry.
Location United Kingdom
Web http://www.spacefello...
Other lists:  aerospace-aviation, fellowships, international-news, science, spacefellowship, space, nasa

#19

dawnlambros Dawn Lambros
Bio Writer, web designer, SEO, business/real estate consultant, entrepreneur. In2 books, education, science, space, nature, sports, video games : )
Location So. Cal.
Web http://www.dreambuild...

#20

thistao curale kojn-oj
Bio None
Location None

Other lists:  aerospace-aviation, engineers, personaldevelopment, philanthropy, philosophy, psychology, space-exploration, writing, zen