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(Click for frequent words.) 77 Decadal Survey 64 MEPAG 63 decadal surveys 63 JDEM 58 Cosmic Vision 57 Decadal 56 Kepler Mission 56 NuSTAR 55 ExoMars mission 55 Solar Orbiter 55 JIMO mission 54 JIMO 54 Europa Orbiter 54 Jupiter Icy Moons Orbiter 54 BepiColombo 54 planetary missions 53 Math Advisory Panel 53 Christopher Scolese 53 Pluto Charon 53 ESAS 53 National Academies 53 Torino Scale 53 Planck satellite 53 Astrophysical 53 journal Meteoritics 53 EPOCh 53 Lunar Exploration 53 GOSAT 53 SMEX 53 NASA MESSENGER 52 ESFRI 52 Terrestrial Planet Finder 52 Technology Policy OSTP 52 Interior Laboratory GRAIL 52 SIM PlanetQuest 52 Heliophysics 52 Space Interferometry Mission 52 NASA 52 NASAs 52 astrometric 52 JWST 52 heliophysics 51 Spaceguard 51 Foing 51 Orbiting Carbon Observatory OCO 51 Mercury flyby 51 Jupiter Icy Moons 51 Robotic Exploration 51 Hubble Space Telescope HST 51 Mishap Investigation Board 51 Antenna LISA 51 GEOSS 51 SBSP 51 Simonetta Di Pippo ESA 51 ESMD 51 Mr Busquin 51 ATST 51 Stafford Covey 51 Dordain 51 Hubble servicing 51 Mars Climate Sounder 50 journal Acta Astronautica 50 Luan Enjie 50 NASA Cosmic Background 50 Pan STARRS 50 NLSI 50 Volker Liebig 50 ESSP 50 OSIRIS REx 50 Lunar Reconnaissance Orbiter LRO 50 Architecture Study ESAS 50 LADEE 50 Deep Impact mission 50 planetary science 50 Mathematics Advisory Panel 50 COPUOS 50 Laboratory MSL 50 LDCM 50 COSPAR 50 OSIRIS Rex 50 EarthCARE 50 NASA Astrobiology 50 Pluto Eris 49 exobiology 49 Admiral Gehman 49 NSABB 49 NASA Great Observatories 49 NAPCC 49 Robotic Lunar Exploration 49 CAIB recommendations 49 MAVEN 49 exoplanetary 49 Hubble Servicing 49 Earthquake Prediction 49 Cryosat 49 interplanetary missions 49 PCAST 49 Explorers ASE 49 Yinghuo 1 49 Outer Planets 49 Quadrennial Defense Review QDR 49 COMSTE 48 Space Administration CNSA 48 JPDO 48 Pluto Kuiper Belt 48 Sasselov 48 EPOXI mission 48 Global Precipitation Measurement 48 SSP FRR 48 NASA STEREO 48 Einstein relativity theory 48 Solar Radiation 48 Krimigis 48 PRCB 48 Nasa Goddard Institute 48 Ken Herkenhoff 48 NASA Planetary 48 NASA THEMIS 48 Beyond Grey Pinstripes 48 Servicing Mission 48 Stockpile Stewardship 48 Norm Augustine 48 Operations Bill Gerstenmaier 48 Chandrayaan II 48 orbiting Hubble Space Telescope 48 ESA SMART 48 Aeronautics NACA 48 PEIS 48 interplanetary spacecraft 48 document A/#/#/Add.# 48 Solar Terrestrial Relations 48 STEREO mission 48 NASA WMAP 48 astrobiological 48 Gael Chauvin 48 Carl Marchetto 48 SciDAC 48 Astrobiology Institute 48 Program Prioritization 48 Expendable Launch Vehicle 48 NASA Kepler telescope 48 IAU definition 48 DIXI 48 Lunar Prospector 48 plutoids 48 Situ Resource 48 UCO Lick 48 NASRDA 48 COROT 48 Astroparticle Physics 48 Richard Binzel 47 planetary exploration 47 QHSR 47 GLAST 47 Horizon Scanning 47 ASPERA 47 Russell Schweickart 47 IIASA 47 Earthscope 47 NASA Stratospheric Observatory 47 Churyumov Gerasimenko 47 Ares Orion 47 Cosmic Evolution 47 demote Pluto 47 planetary Transits 47 Orbiter LRO 47 Mars CRISM 47 Joint Warfighting 47 NSSTC 47 outer planets 47 Cancri e 47 Rosetta comet chaser 47 CCSDS 47 Cassini Huygens 47 journal Monthly Notices 47 Biological Effects 47 Great Observatories 47 NASA Kepler 47 OGLE TR #b 47 BepiColombo mission 47 Aeronomy 47 Explorer WISE 47 Continuity Mission LDCM 47 Venus Climate Orbiter 47 Paul Spudis 47 Medspiration 47 NASA Exobiology 47 Kuiper belt objects 47 Tertiary Education Strategy 47 NASA Authorization 47 Roddam Narasimha 47 EGTT 47 NASA Landsat 47 SMOS 47 Cargo Launch Vehicle 47 MetOp satellite 47 NGATS 47 Cassini Equinox 47 Framework Programmes 47 Pentagon Quadrennial Defense 47 Subsonic Rotary Wing 47 GPS IIR M 47 Joseph Cuzzupoli 47 Copenhagen Diagnosis 47 manned lunar missions 47 Advanced LIGO 47 WFC3 47 Abrupt Climate Change 47 Mid Infrared 47 National Nanotechnology Initiative 47 Fran Bagenal 47 MoonLITE 47 Hubble gyroscopes 47 American Astronautical Society 47 Keck Interferometer 47 satellites orbiting Earth 47 spokesman Michael Braukus 47 SIRTF 47 Hubble Telescope 47 Syun Ichi Akasofu 47 E ELT 47 Cosmic Microwave Background 46 Subsonic Fixed Wing 46 Chandrayan 46 ESA Rosetta 46 NSF TeraGrid 46 Safety Advisory Panel 46 Drake Deming 46 LCROSS mission 46 EIAST 46 LISA Pathfinder 46 DOE NNSA 46 Manned Space 46 I3P 46 Astronomical Society AAS 46 Laser Interferometer Space 46 Quadrennial Defense Review 46 orbiting observatory 46 ASRG 46 Mission Directorate 46 RLEP 46 Research Infrastructures ESFRI 46 ICCVAM 46 Kepler 9c 46 Aquarius SAC 46 Astrobiology Science 46 Planck telescope 46 Astro E2 46 Climate Impact Assessment 46 Quadrennial Homeland Security 46 BEIR VII 46 Environmental Satellite POES 46 SCENIHR 46 noctilucent clouds 46 Spaceguard Survey 46 Inter Governmental Panel 46 Flyby spacecraft 46 David Southwood ESA 46 PRACE 46 Thematic Strategy 46 GRAIL 46 WebTAS 46 AICR WCRF 46 QuikSCAT 46 Quadrennial Defence 46 NSDS 46 PlanetQuest 46 NAOMS 46 NASA Solar Terrestrial 46 Aeronautics Subcommittee 46 Fundamental Physics 46 RQ# 46 Systems Mission Directorate 46 RNEP 46 Fermi Telescope 46 Terrestrial Planet Finder TPF 46 Earth Observation System 46 ASKAP 46 cosmological observations 46 extrasolar planetary systems 46 Landsat Data 46 Space Posture Review 46 Orion MPCV 46 Volker Liebig ESA 46 probe Chang'e 46 Energy Innovation Hubs 46 galaxy formation 46 largest moon Charon 46 Lester Lyles 46 Earth Observations 46 Enceladus flybys 46 SPICAM 46 Desert RATS 46 Educator Astronaut 46 Landsat satellite 46 Pew Oceans Commission 46 asteroid Ceres 46 GALEX 46 Cosmic Background Explorer 46 LCROSS Observation Campaign 46 NITRD 46 Greenhouse Gas Inventory 46 OSTP 46 Nasa 46 scientist Anthony Colaprete 46 Orbital Space 46 Field Infrared Survey 46 linear collider 46 Upper Atmosphere 46 NASA LCROSS 46 Charles Bailyn 46 Convection Rotation 46 WGIG 46 Moon Mineralogy Mapper M3 46 APS journal Psychological 46 Earth Observation Satellites 46 Achilleas Mitsos 46 engineer Christopher Scolese 46 particle physics experiments 46 ExoMars rover 46 Ionosphere Center 46 LaRC 46 Petascale Computing 46 martian meteorites 45 Readiness Review 45 Foundation ESF 45 ESLC 45 Mars Orbiter 45 onboard Chandrayaan 45 ESA Integral 45 Mars Surveyor 45 Technology PCAST 45 YES2 45 Abdalati 45 Earth Observation Programmes 45 Consultative Process 45 CryoSat mission 45 SCISAT 45 Planetary Protection 45 NASA Exobiology Program 45 Lunar Surface 45 Metop 45 Manned Spaceflight 45 ICRP 45 Ångström 45 International Geosphere Biosphere 45 Sea ICES 45 manned lunar landing 45 Meteoritics 45 NASA eClips 45 astrophysical phenomena 45 unsustainable trajectory 45 J# +# [002] 45 Huygens mission 45 trans Neptunian objects 45 Exoplanets 45 Herschel Planck 45 Venusian surface 45 GJ #b [001] 45 JROC 45 Sun Laiyan 45 orbiter lander 45 ESA ASI 45 exo planet 45 Ruitberg 45 MicroFUN 45 MetOp 45 Dr RA Mashelkar 45 IPCC Intergovernmental Panel 45 Orbital Debris 45 GMES Space 45 Orbiter MRO 45 DubaiSat 1 45 Eumetsat 45 Solar Dynamics Observatory 45 polar orbiting 45 Galilean satellites 45 7th Framework Programme 45 Hubble telescope 45 Vakoch 45 Owen Gingerich 45 lunar exploration 45 Control Segment OCX 45 plutoid 45 astronomical observatories 45 P/# A2 45 Kepler #b 45 NASA Orbiting Carbon 45 Research Institute NSBRI 45 GMES 45 TACIR 45 infrared astronomy 45 Full Operational Capability 45 astrophysics 45 Rosetta orbiter 45 Biomacromolecules 45 Educational Adequacy 45 Reusable Launch Vehicle 45 Kepler discoveries 45 Human Spaceflight Microgravity 45 CAIB 45 Origins Spectral Interpretation 45 Infrared Pathfinder Satellite 45 UK RCUK 45 Wolszczan 45 America COMPETES Act 45 astronaut Rusty Schweickart 45 ESA Herschel 45 Lennard Fisk 45 Readdy 45 Mössbauer spectrometer 45 Kounaves 45 S/# P2 45 SM4 45 Galileo constellation 45 UNU IAS 45 Jovian moon 45 YORP effect 45 Elizabeth Dowdeswell 45 Hubble 45 TerraSpark 45 Cathy Peddie LRO 45 STIS 45 Large Synoptic Survey 45 Green# list 45 Winglee 45 polar mesospheric clouds 45 Sirangelo 45 Spudis 45 WG2 45 windshield wiper maneuver 45 Magnetospheric 45 Wilkinson Microwave Anisotropy Probe 45 GOCE 45 ESRIN ESA 45 Interplanetary Internet 45 Lunar Laser Ranging 45 UCDMO 45 orbital rendezvous 45 Surface Temperature 45 Policy Statements NPSs 45 Proba 2 45 MDRS 45 New Horizons spacecraft 45 Planck observatory 45 IYA# 45 NIBIB 45 gamma ray observatory 45 Launch Abort System 45 NASA Lunar Crater 45 SMOS mission 45 Instrument Module 45 Solar TErrestrial RElations Observatory 45 Climate Modeling 45 Cryospheric Sciences Branch 45 COBE 45 journal Palaios 45 decadal 45 Mars Reconnaissance Orbiter MRO 44 Christopher Chyba 44 unmanned probes 44 Cosmic Origins Spectrograph COS 44 Simonetta Di Pippo 44 Mars Atmosphere 44 Commercial Spaceflight Federation 44 particle astrophysics 44 Neutron Detector 44 Gaia Hypothesis 44 Metabolic Engineering 44 Climate Sounder 44 Millennium Ecosystem Assessment 44 Astrobiology Magazine 44 CALIPSO 44 Gerard Kuiper 44 Astrobiology 44 spaceborne 44 IPCC AR4 44 Ranging MESSENGER spacecraft 44 asteroid collisions 44 orbiting telescope 44 Nuclear Spectroscopic Telescope Array 44 greatest insect emergences 44 INCCA 44 Volatile Evolution 44 Vehicle CEV 44 IRP# 44 gamma ray detector 44 Gamma ray Large 44 Phobos Grunt 44 Avishay Gal Yam 44 COSMO SkyMed 44 lunar explorer 44 GLAST telescope 44 Hipparcos 44 Sevastyanov 44 NAVSTAR Global Positioning System 44 administrator Lori Garver 44 IRRC 44 Ocean Observatories Initiative 44 GLAST spacecraft 44 Director Arden Bement 44 Kepler observatory 44 Cyberinfrastructure 44 Physics Applied Physics 44 EPOXI 44 Lebacqz 44 NASA Administrator 44 E8 calculation 44 National Guideline Clearinghouse 44 Gravity Probe 44 ADM Aeolus 44 ESRIN 44 International Linear Collider 44 CoML 44 NSBRI 44 Kasturirangan 44 Viking Lander 44 UT ORNL 44 neutron spectrometer 44 ESA Planck 44 Higher Education AASHE 44 Nanoscale Science Engineering 44 AERONET 44 MN4 44 Centre JRC 44 manned orbital 44 meteorological satellites 44 Research Commissioner Janez 44 C NOFS 44 dexterous robot 44 Planetary Science 44 Intergovernment Panel 44 JPSS 44 Bart Gordon D-Tenn. 44 S/# S1 44 ESA Cluster 44 ERIA 44 manned lunar 44 IAASB 44 planetary 44 Copenhagen Consensus 44 Orion Ares 44 Ryschkewitsch 44 microgravity experiments 44 CSIP 44 Stardust NExT mission 44 Cloud Aerosol Lidar 44 Shallow Radar instrument 44 MBTOC 44 Human Epigenome Project 44 Kurchatov Institute 44 LRO spacecraft 44 Galileoscope 44 Asteroid Itokawa 44 Submillimeter 44 Top#.org 44 NROL 44 mineralogical mapping 44 Astronaut Julie Payette 44 NSDI 44 UNEP WCMC 44 cryosphere 44 Geochimica et Cosmochimica Acta 44 Infrared Array Camera 44 FGDC 44 AMASE 44 ExoMars 44 ICESat 44 HIAPER 44 NOAO 44 Tod Strohmayer 44 Resourcesat 2 44 Cynthia Rosenzweig 44 IASB FASB 44 SDSS III 44 NASA Lunar Prospector 44 Gaia Theory 44 JTIs 44 Crew Exploration 44 Landsat Data Continuity 44 observational astronomy 44 lunar landers 44 MoES 44 Programmatic Environmental Impact Statement 44 ICSU 44 Atlantis Undocks From 44 shuttle Atlantis STS 44 GPS IIF 44 NICMOS observations 44 SDSS II 44 Relativity Theory 44 Delta Cephei 44 CRISM 44 comets asteroids 44 asteroseismology 44 SMOS Soil Moisture 44 journal Climatic Change 44 ASNR 44 Kuiper Belt Object 44 Outcome Budget 44 COMPETES Act 44 GRB #B 44 Grammier 44 Jill Tarter 44 Dalcanton 44 Orbiter spacecraft 44 Natalie Batalha 44 ITEA 44 UKIRT 44 HSPI 44 IOOS 44 Astrosat 44 CSAF 44 JAXA 44 Compton Gamma Ray 44 scientist Bernard Foing 44 IPY 44 ISDC 44 Astronautical Science 44 VASIMR 44 Fermi Gamma ray 44 Alpha Magnetic Spectrometer 44 Descartes Prize 44 Cometary 43 RBSP 43 Lunar Orbiter 43 Global Precipitation Climatology 43 NFIRE 43 Review FRR 43 Ed Weiler NASA 43 Nasa Ames 43 Timing PNT 43 UNCCD 43 Simonetta Di Pipo 43 Ocean Salinity 43 Dean Pesnell 43 CloudSat 43 journal Astrobiology 43 Program CCSP 43 Mars Phobos 43 NASA rovers 43 WISE spacecraft 43 Ionizing Radiation 43 MErcury Surface Space ENvironment 43 Atlantis STS 43 C1XS 43 NASA Educator Astronaut 43 Commissioner Philippe Busquin 43 Commercial Reusable Suborbital 43 Cyberspace Policy 43 Accession Partnership 43 cosmological parameters 43 SELENE probe 43 Anisotropy Probe WMAP 43 Hubble Space Telescope 43 Deep Impact Extended 43 Saturnian moon Titan 43 Earth Observations GEO 43 Borexino 43 Initiative JTI 43 O OREOS 43 Martian rovers 43 Observatory SDO 43 unmanned lunar 43 Enhanced Energy Efficiency 43 Mark N. Sirangelo 43 Taylor Dinerman 43 Primera Bioscience 43 KIPAC 43 scientific journal Proceedings 43 ARCTUS 43 Advanced Functional Materials 43 Crew Launch Vehicle 43 extrasolar planets orbiting 43 LHC experiments 43 Square Kilometre Array 43 NSET 43 spacecraft 43 Exploring Planets 43 F. Readdy NASA 43 Mussel Watch 43 Galaxy Evolution 43 EU# [001] 43 UNCED 43 Saturn Cassini 43 Mars Pathfinder 43 astrobiology 43 Mastcam 43 SCIENCE CHINA 43 Space Infrared Telescope 43 NEOSSat 43 neutrino physics 43 NASA Stardust NExT 43 Tony Ceccacci 43 Rover MER 43 Ulysses spacecraft 43 Space Shuttle Program 43 bibliometric 43 Heliospheric 43 Hakan Svedhem 43 Exascale 43 Space Telescope GLAST 43 Daniel Sacotte ESA 43 Oceansat 2 43 Lunar Reconnaissance Orbiter 43 JPOI 43 nanosciences 43 Exoplanet 43 extrasolar 43 FORMOSAT 43 ESA Earth Observation 43 Manned missions 43 moon Charon 43 Lunine 43 Total Ozone Mapping 43 NASA LaRC 43 WMAP satellite 43 Martian arctic 43 Extragalactic 43 Titan Saturn 43 ESA GOCE 43 Ed Weiler 43 rover Spirit 43 CYBERCOM 43 twin STEREO spacecraft 43 climate modellers 43 UR Rao 43 KISR 43 Maria Zuber 43 synthetic genomics 43 Mars orbiting spacecraft 43 Dwarf Planet 43 Chandrayaan 43 Apophis asteroid 43 Foton M2 43 lunar orbiter Chang'e 43 CoRoT 43 Kulcinski 43 WG1 43 Jupiter flyby 43 IGBP 43 CDMS II 43 journal Astronomy 43 Foundation NSF NCAR 43 Grillmair 43 LCROSS spacecraft 43 IEEE P#.#ba 43 CCSM 43 Observatory STEREO 43 Human Spaceflight 43 IODP 43 Beamline 43 Earth Object 43 journal Icarus 43 Goals Objectives 43 Kuiper Belt object 43 NASA Lunar Reconnaissance 43 Planetary Exploration 43 Douglas Osheroff 43 spacecraft orbiting 43 Nanna Professional Geologist 43 Hubble Space telescope 43 Provost Biddy Martin 43 Exobiology 43 flyby spacecraft 43 Comet Hartley 43 Pascale Ehrenfreund 43 ChemCam 43 inhabitable planets 43 Shuttle Radar Topography 43 BlueGene L 43 Infrastructure Network NNIN 43 hunting Kepler telescope 43 crustal thickness 43 Response Framework 43 Royal Astronomical Society 43 ultraviolet spectrograph 43 Mars rovers Spirit 43 Educator Astronauts 43 Polar Operational 43 Microprobe 43 Hubble orbits 43 Gliese #g 43 enters lunar orbit 43 TSIS 43 laser altimeter 43 Earth Observing 43 Taurus XL 43 Comet Halley 43 MIRTHE 43 Emerging Nanotechnologies PEN 43 icy moons 43 Scolese 43 MTPDP 43 spacecrafts 43 ASTM E# [003] 43 ISS 43 Corot 7b 43 CBAT 43 BN Suresh 43 nicknamed Xena 43 Craig Steidle 43 Graedel 43 Procurement Fraud Task Force 43 Sample Return 43 Thermal Emission Spectrometer 43 Caltech astronomer 43 Mary Voytek 43 ASEE 43 Mars orbiter 43 Hart Rudman 43 PPARC 43 Board CAIB 43 celestial observations 43 Engineering COMSTE 43 Nasa Kepler 43 CLRG 43 LSAM 43 GIOVE B 43 Climate Experiment GRACE 43 Isro 43 ELSI 43 asteroids comets 43 airglow 43 Galileo spacecraft 43 supersymmetric particles 43 National Astronomical Observatories 43 trans Neptunian 43 Experiment MISSE 43 Richard Gilbrech 43 Solar System 43 Columbia Accident Investigation 43 NASA Orbital Debris 43 ESA CryoSat 43 Great Observatories Origins 43 DCYSC 43 NASA Kepler spacecraft 43 NPO Lavochkin 43 ExoMars Trace Gas 43 Catherine Cesarsky 43 journal Oryx 43 Solar Observatory 43 Gravity Probe B 43 NEOWISE 43 geosynchronous 43 Statuary Collection 43 NPOESS 43 Nature Structural Biology 43 Kepler spacecraft 43 geoid 43 Giove B 43 AMSR E 43 GPS IIIA satellites 43 Securing Cyberspace 43 Robert Mirelson 43 Tropical Meteorology IITM 43 geospace science 43 infrared telescopes 43 William Readdy NASA 43 Discovery undocks 42 Cerro Pachón 42 Cabeus 42 Northeast Climate Impacts 42 Herschel Space Telescope 42 UNOOSA 42 Fermi LAT 42 Biodiversity Outlook 42 ICESS 42 Sponnick 42 Security GMES 42 AKARI 42 GeneSat 42 polar orbiting satellites 42 IAMP 42 detect gravitational waves 42 SEGUE 42 Ultraviolet Imaging Spectrograph 42 Planetary 42 Aboard Endeavour 42 Planck spacecraft 42 Bruce Jakosky 42 Modeling Framework 42 X ray observatory 42 polarimetric 42 planemos 42 IEEE Photonics 42 Cosmological 42 Space Physics 42 LSST 42 Earth Observation 42 Lunar Crater 42 Facility SIRTF 42 Protein Structure Initiative 42 Heterodyne Instrument 42 Herschel telescope 42 Climate Extremes 42 Helios 2B 42 Ozone Monitoring 42 exoplanet hunter 42 BepiColombo joint 42 David Wettergreen 42 Timothy Spahr 42 supplemental EIR 42 Laser Interferometer Gravitational Wave 42 DUSEL 42 lunar missions 42 NSLS 42 MARSIS 42 Orbit Validation 42 WISE infrared 42 orbiting observatories 42 Curiosity rover 42 Jagdeo Initiative 42 Chrystyna Bedrij Director 42 Anyamba 42 MARSIS radar 42 STScI 42 journal Biogeosciences 42 Ares IY 42 radio occultation 42 Telescope LSST 42 Institute SwRI 42 Landsat satellites 42 NTPP 42 orbital insertion 42 STEREO spacecraft 42 Anisotropy Probe 42 Bette Otto Bliesner 42 WISE telescope 42 THEMIS satellites 42 Neil deGrasse Tyson 42 British Interplanetary Society 42 SORCE 42 GREENBELT Md. NASA 42 Atlas IIAS 42 EGRET 42 Smart Grid Interoperability 42 GRIDS 42 NASA astrobiology 42 Square Kilometre Array SKA 42 Mars moon Phobos 42 Earth Object NEO 42 Travis Huxman 42 Jet Propulsion Laboratory JPL 42 STPSat 42 supercomputer simulations 42 Space Station Status 42 Mitigation Strategies 42 Robert Zubrin 42 Helioseismic 42 XMM Newton X ray 42 K. Kasturirangan 42 Operations Mission Directorate 42 Richard Mushotzky 42 ESA 42 dioxin reassessment 42 Higgs singlet 42 Commission SUPARCO 42 Patient Centered Outcomes 42 Tsunami Hazard Mitigation 42 Big Bang cosmology 42 IVSC 42 China Manned Space 42 ST5 42 Antrix ISRO 42 Nuclear Posture 42 extraterrestrial visitation 42 Astronautics AIAA 42 HiRISE 42 HECToR 42 planetary explorations 42 reionization 42 QDR 42 Mars landers 42 Foton M3 42 Space Telescope 42 Stockpile Stewardship Program 42 JHU APL 42 Organic Synthesis 42 IceBridge 42 Heiner Klinkrad 42 SwRI 42 Braukus 42 Herschel Space 42 Infrared Astronomy 42 extrasolar planet observations 42 mission Chandrayan 42 Io Europa 42 AAVSO 42 KBOs 42 microshutters 42 Bioengineering NIBIB 42 FNDP 42 NEOs 42 Norm Thagard 42 Flight Readiness 42 propulsion subsystem 42 Cygnus Lyra region 42 Radiation Effects