Related by context. Frequent words. (Click for all words.) 52 NASA Kepler 49 Kepler spacecraft 49 NASA Stardust spacecraft 48 Endeavour docked 48 TRAVEL Trek Tracker 47 Messenger spacecraft 46 Soviet cosmonaut Yuri Gagarin 46 Lunar Reconnaissance Orbiter LRO 46 Discovery undocked 45 cosmonaut Yuri Gagarin 45 Shuttle Discovery 45 orbiting observatory 45 shuttle Endeavor 44 asteroid Itokawa 44 unmanned lunar 44 robotic explorers 43 SpaceX Falcon 9 43 Kepler telescope 43 orbiting Hubble Space Telescope 43 Terry Willers 43 Sensing Satellite LCROSS 43 Apollo missions 43 rover Spirit 43 Antarctic seas 43 robotic rover 42 Red Planet 42 comet 42 Stardust spacecraft 42 hunting 42 asteroid 42 outer space 42 satellite Sputnik 42 hiking kayaking 42 unmanned spacecraft 42 interplanetary spacecraft 42 meteorite hunters 42 aboard Atlantis 42 Opportunity rover 42 comet Wild 42 robotic spacecraft 41 sika deer 41 spacecraft orbiting 41 Endeavour STS 41 ringnecks 41 infrared telescope 41 Mars Pathfinder 41 robotic probes 41 moon 41 Centaur rocket 41 Astronaut Buzz Aldrin 41 asteroids 40 robotic rovers 40 Viking landers 40 Oceansat 2 40 Lawhern 40 aboard Soyuz spacecraft 40 Deep Impact spacecraft 40 Galileo spacecraft 40 harp seal population 40 Tanegashima Space Center 40 NASAs 40 Foja Mountains 40 Martian landscape 40 GSLV D3 40 Christa McAuliffe backup 39 Cassini Huygens 39 Ariane rocket 39 Blog@memri.org 39 HMS Beagle 39 asteroid Vesta 39 spacecraft 39 OSIRIS REx 39 International Space Station 39 X ray telescope 39 Tanegashima 39 Mike Melvill 39 spacecrafts 39 trumpeter swan 39 white tailed deer 39 Voyager spacecraft 39 lunar orbiter 39 Yuri Gagarin 39 elk moose 39 lunar orbit 39 Astronaut Nicole Stott 39 sandhill crane 39 Soyuz capsule carrying 39 skeet shoot 39 chukars 39 Valery Tokarev 38 New Horizons spacecraft 38 agency Roskosmos 38 NASA Mars rover 38 shuttle Discovery 38 goshawks 38 VSS Enterprise 38 lunar surface 38 antlerless elk 38 innermost planet 38 sub orbital 38 turtle dove