93
Former @NASA astronaut, Professor at Columbia @CUSEAS, Sr. Advisor for Space Programs @IntrepidMuseum, Author of #Spaceman
1,363,312
96
ESA astronaut & test pilot back on Earth after 6 months in space. Tweets are my own. Pre-order new book (proceeds to Prince's Trust): http://bit.ly/AAATimPeake
1,613,630
391
86
Doug Wheelock
@Astro_Wheels
Test Pilot; NASA Astronaut: STS-120 & ISS-25; Space Station Commander; Proud Husband & Dad; Explorer; Poet; Dreamer; NASA Director of Operations - Russia.
168,006
97
SCIENCE! I love this stuff. My blog RSS feed: http://www.blastr.com/tags/bad-astronomy/feed
595,538
13,442
43,618
93
My new book EVERYTHING ALL AT ONCE available for pre-order now
5,279,035
86
Paolo Nespoli
@astro_paolo
European Space Agency Astronaut, Flight Engineer of ISS Expedition 26/27 (Dec 2010 - May 2011)
226,228
82
Crazy fun US Astronaut/space mechanic/speaker/Author: The Ordinary Spaceman, STEAMer, S Media/space, love NASA, inventor Twitpic POTD! http://www.astroclay.com
59,139
87
Navy combat veteran & retired NASA astronaut. Commanded final launch of Space Shuttle Endeavour. Co-founded @Resp_Solutions. Husband to @GabbyGiffords.
182,640
