Related by context. Frequent words. (Click for all words.) 51 Secretary Kathleen Merrigan 49 NASA Administrator 49 Human Spaceflight 48 Premier Igor Sechin 48 Associate Administrator 48 Premier Zeng Peiyan 47 Mayor Tim Ceis 46 NASA 46 NASA Astronaut 45 General Olli Heinonen 45 President Kgalema Motlanthe 44 SpaceX Falcon 9 44 Systems Mission Directorate 44 Anatoly Perminov 43 Jean Jacques Dordain 43 NASAs 43 Samuel Bodman 43 Minister Cao Gangchuan 43 Premier Huang Ju 43 Robert Kimmitt 42 Centennial Challenges 42 Roscosmos 42 Defense Secretary 42 NASA Headquarters 42 National Reconnaissance 42 EIAST 42 Rose Gottemoeller 42 NASA astronaut 42 governor Ric Battellino 42 Minister Ephraim Sneh 42 Lee Soo hyuck 41 Perminov 41 NYSE ORB 41 human spaceflight 41 NASA Authorization 41 G. Madhavan Nair 41 Marion Blakey 41 Scolese 41 Orbital Space 41 Prime Minister Karim Masimov 41 spaceflight 41 DubaiSat 1 41 ESA astronaut 41 Press Gaggle 41 GLAST 41 lunar exploration 40 Minister Sushil Kumar 40 Nie Haisheng 40 G Madhavan Nair 40 Ares IX rocket 40 SPACEHAB 40 Space Shuttle Program 40 SpaceX 40 manned spaceflight 40 ISS Expedition 40 Deep Impact mission 40 agency Roskosmos 40 THE PRESIDENT Good 40 D. Negroponte 40 Roskosmos 40 De Winne 40 NASA Kepler 40 Lynn Scarlett 40 Tony Fratto 40 administrator Sean O'Keefe 40 Foreign Minister 40 Treasury Secretary 40 OSTP 39 RSC Energia 39 External Affairs Minister 39 secretary Tony Fratto 39 LCROSS mission 39 Peter Diamandis 39 Charles Bolden 39 Governor Dirk Kempthorne 39 Governor Phil Bredesen 39 Alexander Losyukov 39 Prime Minsiter 39 NASTAR Center 39 adviser Denis McDonough 39 Jeffrey Zients 39 NASA Space Shuttle 39 Governor Tom Vilsack 39 Interior Secretary 39 Readdy 39 Neal Wolin 39 Mike Leinbach 39 Space Agency 39 chief Anatoly Perminov 39 Shuttle Launch 39 Missile Defense Agency 39 spokesperson Marie Okabe 39 President Susan Hockfield 38 Bob Thirsk 38 Aneesh Chopra 38 ISRO 38 Commander Eileen 38 Space Flight 38 Chandrayan 38 Spacecraft 38 Wallops Flight Facility