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Hoot Gibson 42 ion propulsion 42 Rick Grammier 42 Launch Abort System 42 Sponnick 42 PASADENA Calif. KABC 42 SpaceShipTwo SS2 42 laser altimeter 42 Huygens descent 42 robotic landers 42 NASA MESSENGER 42 aboard Skylab 42 Norman Thagard 42 RKK Energia 42 National AeroSpace Training 42 Greenbelt Md 42 Explorer WISE 42 JPL rover 42 RAS Observatory 42 Esrange Space Center 42 Thirty Meter Telescope 42 Satcher Jr. 42 Simonetta Di Pippo 42 BBSNews #-#-# NASA 42 particle physics experiments 42 NASA Stardust spacecraft 42 circumlunar 42 Reconnaissance Orbiter 42 Geosemble Technologies 42 Martian lander 42 Vandenberg Air Force Base 42 LANL 42 Kisailus 42 Jacobs Sverdrup 42 Lopota 42 Space Explorations 42 Nasser Peyghambarian 42 Assure Controls 42 geomorphologist 42 Vandenberg Air Force 42 ENose 42 Shockley Semiconductor 42 Observatory STEREO 42 Coast Guard icebreaker Healy 42 Relative Navigation 42 Bob Curbeam 42 Huygens Probe 42 Advoco 42 Daniel Geschwind 42 Rich Zurek 42 Taylor Dinerman 42 Michael Braukus 42 IBEX spacecraft 42 Andreas Heinrich 42 Carl Marchetto 42 Neutron Spectrometer 42 reusable spacecraft 42 Sirangelo 42 Sojourner rover 42 Rosetta spacecraft 42 André Borschberg 42 Orbiter LRO 42 Mike Cerneck 42 X #B 42 Aquarius SAC 42 Phil DeCola 42 Sanswire Networks 42 arctic plains 42 Cassini scientist 42 Dr. Wernher von 42 Solar Arrays 42 Manned missions 42 Acaba 42 Hubble Space Telescope HST 42 High Resolution Imaging 42 Neil DeGrasse Tyson 42 Pasadena Calif. 42 Reusable Launch Vehicle 42 Richard Vondrak 42 Lunar Surface 42 Institute JBEI 42 Chajnantor plateau 42 Luan Enjie 42 duration spaceflights 42 Credit NASA GSFC 42 Advanced Supercomputing NAS 42 LRO LCROSS 42 Alejandro Zaffaroni