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(Click for frequent words.) 73 extraterrestrial civilizations 64 extraterrestrial civilization 63 Extraterrestrial Intelligence 60 extraterrestrials 59 exoplanetary 59 Werthimer 58 Earthlike planets 58 habitable planets 57 alien beings 57 extrasolar 57 earthlike planets 56 interplanetary 56 extraterrestrial beings 56 distant supernovae 56 inhabitable planets 56 cosmologists 56 astrophysical phenomena 56 extraterrestrial 56 unmanned probes 55 extraterrestrial UFOs 55 planemos 55 Epsilon Eridani 55 habitable worlds 55 extra terrestrials 55 outer planets 55 faraway planets 55 intelligent beings 54 cosmic phenomena 54 extrasolar planetary systems 54 planets 54 planets orbiting distant 54 Galilean satellites 54 Mars landers 54 Kuiper Belt Objects 54 gravitational microlensing 54 neutralinos 54 detect gravitational waves 54 comets asteroids 53 robotic probes 53 outer space 53 extragalactic 53 interstellar distances 53 Project Ozma 53 Fermi telescope 53 quantum teleportation 53 Tau Ceti 52 planetary missions 52 Drake Equation 52 cosmological theories 52 astronomical observations 52 astrophysical objects 52 Gliese #d 52 astrobiological 52 coronal loops 52 extrasolar worlds 52 supersymmetric particles 52 particle physicists 52 Jill Tarter 52 interplanetary spacecraft 52 Cosmologists 52 gravitational wave 52 spacecrafts 52 Extra Terrestrial Intelligence 52 Higgs bosons 52 occultations 52 Kuiper belt objects 52 pulsars 52 fainter objects 51 Wolszczan 51 Astrophysicists 51 Fermi paradox 51 asteroid collisions 51 Voyager spacecraft 51 spacefaring 51 neutrino particles 51 gravitational lenses 51 planetary surfaces 51 exo planets 51 microbial ecosystems 51 WIMPs 51 Nasa spacecraft 51 orbiting spacecraft 51 biosignatures 51 sterile neutrino 51 KBOs 51 gravitational waves 51 cosmic microwave radiation 51 astronomers 51 panspermia 51 Earthlings 51 type Ia supernovae 51 exo planet 51 robotic rovers 51 planets orbiting stars 51 microlensing events 51 robotic spacecraft 51 cosmos 51 satellites orbiting 51 Dan Werthimer 51 satellites orbiting Earth 51 quasars 51 Jodrell Bank 51 Cassini Huygens 51 Evolution Explorer 51 Vakoch 50 asteroid impacts 50 circumstellar disks 50 highly elliptical orbits 50 Saturn aurora 50 exobiology 50 Trojan asteroids 50 axions 50 GRBs 50 icy comets 50 Cosmic rays 50 optical telescopes 50 Jovian moons 50 Nasa Kepler 50 earthlings 50 geostationary orbits 50 cosmological parameters 50 SETI 50 astrobiologists 50 SETI Search 50 Kepler Mission 50 millisecond pulsars 50 Extraterrestrial Intelligence Institute 50 Voyager probes 50 moons Phobos 50 astrometry 50 Alpha Centauri 50 astronomical objects 50 distant quasars 50 Jovian moon 50 Carl Sagan 50 infrared telescopes 50 Ground penetrating radar 50 radial velocity 50 antineutrinos 50 Gravitational waves 50 MARSIS 50 robot rovers 50 crewed spacecraft 50 rocky planets 50 astrophysicists 50 transhumanists 50 Terrestrial Planet Finder 50 Nibiru 50 novae 50 X ray telescopes 49 CDMS experiment 49 Grillmair 49 distant galaxies 49 astrophysical 49 interstellar 49 optical interferometry 49 transiting planets 49 Fermi Paradox 49 planetary Transits 49 hypervelocity stars 49 X ray observatories 49 magnetic monopoles 49 LOFAR 49 astronomical phenomena 49 cosmological 49 Gamma ray burst 49 binary asteroid 49 stargates 49 faraway galaxies 49 Jupiter icy moons 49 quantum entanglement 49 submillimeter wavelengths 49 Extraterrestrial Intelligence SETI 49 Gliese #c 49 Owen Gingerich 49 terrestrial planets 49 optical spectra 49 Earths orbiting 49 transiting exoplanets 49 millisecond pulsar 49 NASA Wilkinson Microwave 49 celestial phenomena 49 insect cyborgs 49 subspace 49 UFO phenomena 49 Seth Shostak 49 electron neutrinos 49 Maxwell equations 49 exoplanets orbiting 49 millimeter wavelengths 49 moon Europa 49 electromagnetic signals 49 reionization 49 planetary atmospheres 49 Anisotropy Probe WMAP 49 supergiant stars 49 redshifted 49 extrasolar planets 49 terrestrial 49 Venusian 49 X ray wavelengths 49 ultraviolet wavelengths 49 spacefaring civilization 49 OGLE TR #b 49 satellites 49 planets moons 49 Sasselov 49 orbiting Chandra 49 extraterrestial 48 cosmic ray 48 geosynchronous satellites 48 comets meteors 48 Galilean moons 48 galaxies 48 magnetars 48 celestial observations 48 observable phenomena 48 Earthlike 48 Gamma ray bursts 48 spinning neutron stars 48 spectroscopic measurements 48 artificial intelligences 48 Einstein theories 48 lunar orbiters 48 extrasolar planetary 48 SUSY 48 blazars 48 terraforming Mars 48 robotic explorers 48 Telescope Array 48 meteoroids 48 Higgs Boson particle 48 spacecraft 48 GJ #b [001] 48 planet Nibiru 48 NASA Kepler spacecraft 48 Henize #-# 48 sunlike stars 48 planets atmospheres 48 optical wavelengths 48 chemtrails 48 Kepler 9c 48 Milky Way galaxy 48 Solar TErrestrial RElations Observatory 48 orbit GEO 48 Cosmic Background Explorer COBE 48 antimatter particles 48 telescopic observations 48 Earthlike planet 48 galaxy 48 gravitational wobbles 48 planets orbiting 48 supercomputer simulations 48 NEAs 48 Bruce Jakosky 48 Hubble Space Telescope HST 48 asteroids 48 planets asteroids 48 outerspace 48 Astrobiologists 48 moons circling 48 sized planets orbiting 48 outermost planets 48 Galileo spacecraft 48 lightwaves 48 wormholes 48 sentient robots 48 Planetary Transits 48 potentially habitable planets 48 galaxy formation 48 comets orbiting 48 Higgs particle 48 ETs 48 Mars Odyssey orbiter 48 BP Psc 48 heliocentric model 48 extrasolar planets orbiting 48 origins spectrograph 48 superstrings 48 cosmic strings 48 galactic magnetic 48 thermal infrared 48 Martian craters 48 gamma ray telescopes 48 Geminga 48 galactic cosmic rays 48 technological singularity 48 Avi Loeb 48 Oort cloud 48 lifeforms 48 SPHERES 48 exoplanets planets 48 Higgs boson particle 48 celestial bodies 48 Kuiper Belt Object 48 gamma ray emission 48 planet Gliese #g 48 galactic mergers 48 planetoids 48 supernovas 48 CMEs 48 Deep Impact comet 48 galactic 48 ecliptic plane 47 astrometric 47 Mössbauer 47 moonquakes 47 telescopes 47 WMAP satellite 47 detect gamma rays 47 colonize Mars 47 gamma ray photons 47 radial velocity technique 47 permanently shadowed craters 47 Beta Pictoris b 47 Astrophysics MOA 47 COROT 47 Extraterrestrials 47 globular clusters 47 STEREO spacecraft 47 SuperWASP 47 ESO VLT 47 superluminal 47 Manned missions 47 supernovae 47 twin Voyager spacecraft 47 active galactic nuclei 47 lunar craters 47 heliocentric 47 magnetar 47 astronomy 47 planetary nebulae 47 exosolar planets 47 planetary 47 Gamma ray 47 masers 47 Martian rovers 47 planetoid 47 Hawking radiation 47 radiotelescope 47 interplanetary missions 47 prebiotic molecules 47 Exoplanet 47 Relations Observatory STEREO 47 Earth ionosphere 47 Type Ia supernovas 47 abiogenesis 47 orbited Jupiter 47 aether 47 Kazantzidis 47 accretion disks 47 celestial sphere 47 orbiting Hubble Space Telescope 47 infrared ultraviolet 47 novas 47 NFIRE 47 Sara Seager 47 NASA Kepler 47 quantum particles 47 particle acceleration 47 Ulysses spacecraft 47 interstellar dust grains 47 SN #A 47 JDEM 47 Martian 47 Wilkinson Microwave Anisotropy Probe 47 luminous galaxies 47 Saturnian moon Titan 47 muon neutrino 47 HM Cancri 47 spacecraft flyby 47 X ray observatory 47 solar corona 47 robotic explorer 47 heliophysics 47 particles WIMPs 47 Corot 7b 47 planet WASP #b 47 Cygnus Lyra region 47 Cosmic Microwave Background 47 ray Space Telescope 47 Earth orbiting satellites 47 cosmological models 47 cosmological distances 47 SMBHs 47 elliptical orbits 47 orbiting telescopes 47 Cancri e 47 Gal Yam 47 magnetospheres 47 WIMPS 47 Fermi Gamma ray 47 interstellar molecules 47 God Particle 47 Keck telescope 47 neutralino 47 polarimetry 47 Jupiter gravitational pull 47 sunlike star 47 ALMA antennas 47 exoplanet hunter 47 Perseus Cluster 47 solitons 47 cosmic particles 47 Terrians 47 gamma ray observatory 47 Orbiter LRO 47 Viking landers 46 Venusians 46 aliens 46 hypersonic 46 Mars orbiting spacecraft 46 Alycia Weinberger 46 interstellar particles 46 exoplanets 46 galactic cores 46 synchrotron x ray 46 Weakly Interacting Massive Particles 46 Crab Pulsar 46 Epsilon Aurigae 46 Andromeda galaxy 46 cosmic cannibal 46 planetary orbits 46 planetary alignments 46 Theorists 46 interferometry 46 moons orbiting 46 microwave radiometers 46 Saturn Cassini 46 Apophis asteroid 46 ufologists 46 distant galaxy 46 Very Large Array 46 contactees 46 terahertz frequencies 46 Eagle lunar lander 46 microlensing technique 46 Martians 46 MIT planetary scientist 46 spaceborne 46 exoplanet atmospheres 46 Stargates 46 distant supernovas 46 substorms 46 e MERLIN 46 dwarf spheroidal galaxies 46 planets circling 46 Alfven waves 46 asteroid 46 dwarf galaxies 46 energetic cosmic rays 46 Climate Experiment GRACE 46 X ray binary 46 TrES 4 46 alien spaceships 46 cosmology 46 Martian terrain 46 eclipsing binary 46 USVs 46 Odyssey orbiter 46 quantum physicists 46 jovian 46 Comet Hartley 2 46 neutrino detectors 46 Wormholes 46 magnetic substorms 46 Encke gap 46 observational astronomy 46 Hubble Telescope 46 relativity theory 46 celestial objects 46 smallest exoplanet 46 Toutatis 46 Mars orbiters 46 Venusian atmosphere 46 AGNs 46 colliders 46 proto galaxies 46 sterile neutrinos 46 coronal mass ejections CMEs 46 orbital rendezvous 46 Amateur astronomers 46 COROT exo 3b 46 Comet Halley 46 starquakes 46 cyborg insects 46 Einstein relativity theory 46 HARPS instrument 46 spaceships 46 tropospheric warming 46 ROSAT 46 boson 46 cosmic rays 46 Rydberg atom 46 interstellar grains 46 spectroscopically 46 NASA rovers 46 NFIRE satellite 46 HD#b 46 lunar landers 46 polar orbiting satellites 46 serendipitous discoveries 46 strangelets 46 Martians invading 46 Mojzsis 46 LIGO 46 gamma ray burst 46 electromagnetic frequencies 46 Lunar Reconnaissance Orbiter LRO 46 posthuman 46 UCO Lick 46 mental telepathy 46 cosmological observations 46 blackholes 46 moonlets 46 exosphere 46 spacecraft orbiting 46 Red Planet 46 supervolcanoes 46 Pluto Charon 46 civilizations 46 RRATs 46 supercontinents 46 planetary transits 46 interstellar dust 46 Fomalhaut b 46 Martian rocks 46 anthropic principle 46 gamma ray detectors 46 photometry 46 Convection Rotation 46 Molczan 46 gravitational radiation 46 Type Ia supernovae 46 galaxy M# [001] 46 antimatter 46 ionospheric 46 C. elegans roundworm 45 faintest galaxies 45 Churyumov Gerasimenko 45 protons collide 45 ESA XMM Newton 45 MARSIS radar 45 Laser Interferometer Space 45 terahertz waves 45 single celled microbes 45 RHESSI 45 Comet Hartley 45 humans 45 astronomer Seth Shostak 45 primate ancestors 45 Cometary 45 nucleosynthesis 45 inter planetary 45 astrobiology 45 ULP cepheids 45 wavefunction 45 astronomy observatory 45 redshift 45 Benthic Rover 45 type Ia supernova 45 gaseous planets 45 antiparticles 45 energetic electrons 45 tau neutrinos 45 NASAs 45 P/# A2 45 NASA Far Ultraviolet 45 ESA Integral 45 Joel Primack 45 intracluster 45 Professor Pillinger 45 landers 45 Jupiter Saturn 45 observable universe 45 manned lunar 45 supernovae explosions 45 meteoroid 45 particle beam 45 GLAST telescope 45 MINOS 45 periodic dimming 45 Saturn moons 45 interstellar space 45 spiral nebulae 45 Percival Lowell 45 spacefarers 45 spacefaring nations 45 ionosphere 45 Huygens descent 45 THEMIS satellites 45 infrared astronomy 45 hypervelocity star 45 Martian meteorites 45 subatomic particles 45 Magellanic Clouds 45 interferometers 45 gamma ray bursts 45 shadow biosphere 45 celestial beings 45 spectroscopic observations 45 robotic lander 45 subatomic particle 45 exoplanetary systems 45 GRB #B 45 Viking Orbiter 45 geostationary communications 45 Exoplanets 45 Samuel Oschin Telescope 45 spacecraft Cassini 45 SIM PlanetQuest 45 Neil deGrasse Tyson 45 planets comets 45 Galactic cosmic rays 45 nucleons 45 Andromeda Galaxy 45 particle colliders 45 Anisotropy Probe 45 Doppler shifts 45 transiting planet 45 THEMIS mission 45 XMM Newton 45 Spitzer infrared spectrograph 45 WASP #b 45 Miller Urey experiment 45 C1XS 45 quantum weirdness 45 Gaia Hypothesis 45 physicists 45 cometary debris 45 submillimetre wavelengths 45 superheavy elements 45 Keck Interferometer 45 meteor impacts 45 retrograde orbits 45 rovers 45 Photons 45 orbiting planets 45 orbiting satellites 45 particle detectors 45 JIMO 45 cosmic ray particles 45 Krimigis 45 universe 45 radial velocity method 45 orbiting observatories 45 magnetic reconnection 45 microlensing 45 CMB radiation 45 otherworldly beings 45 Kuiper Belt objects 45 planets constellations 45 SETI Institute 45 planets astronomers 45 UFOlogists 45 muon neutrinos 45 VIRTIS instrument 45 NASA STEREO 45 martian 45 impactors 45 Stephen Hawkings 45 Cosmic Background Explorer 45 CoRoT 45 micrometeoroids 45 Hipparcos 45 AERONET 45 posthumans 45 NEOs 45 Kepler spacecraft 45 supercontinent 45 telescope 45 microbots 45 planets orbiting sun 45 merging galaxies 45 Global Surveyor 45 Extraterrestrial UFOs 45 Milky Way Galaxy 45 Gregory Benford 45 NASA Gamma ray 45 Extrasolar planets 45 homing beacons 45 Earth asteroids NEAs 45 Fred Hoyle 45 Mars moon Phobos 45 neutrino oscillation 45 astronomical telescopes 45 terahertz frequency 45 Neutron stars 45 extrasolar planet 45 heliopause 45 dimensional holographic 45 dimming starlight 45 brightest supernova 45 TNOs 45 satellites orbiting Mars 45 distant galaxy clusters 45 neutron stars 45 exoplanet 45 orbital resonance 45 graviton 45 Alfvén waves 45 Solar Orbiter 45 gravitational perturbations 45 type 1a supernovae 45 Konacki 45 Manipulative Extraterrestrials 45 lensing galaxy 45 Gemini constellation 45 protoplanets 45 faint galaxies 45 Svedhem 45 Mars Odyssey spacecraft 45 lunar missions 44 stellar occultation 44 neutrino beam 44 STSS Demonstration 44 Arecibo Observatory 44 unicellular organisms 44 Martian surface 44 particle physics experiments 44 astrophysics 44 Prof. Hawking 44 immortal beings 44 homochirality 44 MicroFUN 44 phyllosilicates 44 Oort Cloud 44 computer simulations 44 antiparticle 44 Carina constellation 44 Jenniskens 44 electromagnetic 44 solar flares 44 Magnetars 44 macroscopic objects 44 Wide Angle Search 44 MG J# +# 44 ESA Planck 44 Earth magnetosphere 44 Antarctic Dry Valleys 44 Martian landscape 44 asteroids comets 44 Kuiper Belt object 44 testable hypotheses 44 transhuman 44 cosmic collisions 44 distant suns 44 extraterrestrial visitation 44 reptilian aliens 44 geostationary satellites 44 NASA Cosmic Background 44 AB Aurigae 44 manned lunar missions 44 atom smashers 44 infrasound 44 Apollo missions 44 wormhole 44 David Wettergreen 44 RXTE 44 orbiting Mars 44 Spaceguard 44 Planck satellite 44 Array ALMA 44 VY Canis Majoris 44 Mini TES 44 comet nucleus 44 Square Kilometer Array 44 superfluids 44 moon Io 44 terrestrial beings 44 THz radiation 44 Lunar Prospector 44 protoplanet 44 protostars 44 gravitons 44 Cepheids 44 Particle physics 44 stellar occultations 44 Avishay Gal Yam 44 Einstein equations 44 Saturn auroras 44 planetary scientist 44 geosynchronous 44 moon Charon 44 LHC experiments 44 VLBA 44 NASA rovers Spirit 44 neutron spectrometer 44 EVLA 44 alternate universes 44 starburst galaxies 44 spatial dimensions 44 Hubble Space 44 reionization epoch 44 ESA Cluster 44 Elliptical galaxies 44 SETI @ Home 44 airglow 44 multicellular animals 44 planets orbits 44 blazar 44 inter galactic 44 circumstellar 44 supermassive 44 neutrino 44 Laser Interferometer Gravitational Wave 44 invisibility cloaks 44 Spaceguard Survey 44 GALEX 44 quantum bits 44 retrograde orbit 44 discover Fomalhaut 44 X ray emission 44 interferometric technique 44 robotic telescopes 44 humankind 44 Higgs singlet 44 Upsilon Andromedae 44 Jonathan Lunine 44 asteroidal 44 Wiccans worship 44 atomic particles 44 bipedal walking 44 STEREO mission 44 Nima Arkani Hamed 44 elongated orbits 44 Adam Riess 44 orbiter Mars Odyssey 44 faraway galaxy 44 coronal holes 44 auroral 44 Alex Filippenko 44 GQ Lupi 44 super Earths 44 ultracold atoms 44 relativistic particles 44 intrinsic brightness 44 SEGUE 44 noctilucent clouds 44 celestial mechanics 44 Theodore von Karman 44 buckypaper virtually 44 CERN LHC 44 Cosmology 44 Observatory STEREO 44 celestial object 44 cylons 44 alien lifeform 44 microshutters 44 APXS 44 psychic phenomena 44 martian meteorites 44 invisibility cloaking 44 navigate autonomously 44 Philae lander 44 neutrinos 44 Harlow Shapley 44 Distant galaxies 44 matter antimatter asymmetry 44 Prophet Yahweh 44 Star Trek holodeck 44 Cepheid variables 44 Milky Way halo 44 flyby Cassini 44 Diviner 44 SIRTF 44 coronal heating 44 Fermi Telescope 44 cosmic microwave background 44 circular orbits 44 chondrules 44 Comet Elenin 44 planet Uranus 44 telescopes astronomers 44 SETI @ home 44 Jupiter moons 44 terra forming 44 aboard ESA Envisat 44 galaxies collide 44 NASA Fermi Gamma 44 spectroscopic analysis 44 submillimeter galaxies 44 habitable planet 44 TGFs 44 Eloh 44 sub millimeter wavelengths 44 starships 44 NASA Mars Odyssey 44 BepiColombo 44 Big Bang theory 44 Kuiper belt object 44 Terahertz 44 galaxy redshift 44 galactic cosmic ray 44 Herschel Planck 44 Muons 44 lunar orbits 44 Uranian 44 EPOXI 44 Fritz Zwicky 44 Mario Livio 44 quantum superposition 43 autonomous robots 43 GPS satellites 43 Earth asteroids 43 planetary embryos 43 irregularly shaped asteroid 43 Mars rovers 43 VISTA telescope 43 Spectroscopic Explorer 43 Martian crater 43 Shri Kulkarni 43 ExoMars mission 43 robotic landers 43 COBE satellite 43 gamma ray 43 icy moons 43 planetary astronomy 43 hematite mineral 43 assumed planets circling 43 gamma rays 43 Schawinski 43 binary asteroids 43 Uwe Bergmann 43 Schrödinger cat 43 Galaxy Evolution 43 meteoritic material 43 sidereal 43 Epoxi 43 Zeta Ophiuchi 43 nebular 43 EPOCh 43 Foing 43 outermost ring 43 Pan STARRS 43 GLAST 43 Mandushev 43 NASA Cassini 43 filamentary structure 43 Douglas Hudgins Kepler 43 Upsilon Andromedae b 43 meteoroid impacts 43 Gravity Probe 43 Ufologists 43 quantum electrodynamics 43 tau neutrino 43 Martian rover 43 electronic excitations 43 supersymmetric 43 Gliese #G 43 binary quasar 43 massless particles 43 gravitational interactions 43 VHE gamma rays 43 quantum dot lasers 43 WISE infrared 43 OSIRIS REx 43 Elenin 43 orbital insertion 43 observatories 43 Astro E2 43 Cassini spacecraft orbiting 43 subsurface ocean 43 Berinstain 43 planets Uranus 43 galaxy clusters 43 reconnaissance satellites 43 SuitSat 43 gravitational lens 43 Halley comet 43 spacetime 43 gravitational interaction 43 Submillimeter Array 43 quasar 43 Antenna LISA 43 celestial 43 galactic clusters 43 radioactive nuclei 43 satellite 43 Fermilab Tevatron 43 David Southwood ESA 43 Nikku Madhusudhan 43 Europa Ganymede 43 orbiting 43 futurologists 43 ultraluminous galaxy 43 orbital 43 brown dwarfs 43 stargate 43 limitless expanse 43 aerosol measurements 43 interstellar dust clouds 43 Astrophysical 43 bend electromagnetic radiation 43 Kip Thorne 43 Charles Elachi 43 Hubble observations 43 prehistoric ancestors 43 CoRoT satellite