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(Click for frequent words.) 60 extraterrestrial UFOs 58 Arches Cluster 57 Gravitational waves 57 neutrino particles 57 cometary debris 57 electromagnetic flux 57 moonlets 56 infrared telescopes 56 extrasolar worlds 56 extraterrestrial civilization 55 NEAs 55 Oort Cloud 55 circumstellar disks 55 cosmic ray particles 55 Fomalhaut b 55 superluminal 55 impactors 55 fainter objects 55 KBOs 54 Higgs bosons 54 energetic cosmic rays 54 Venusian atmosphere 54 Circinus X 1 54 extraterrestrial civilizations 54 jovian 54 relativistic particles 54 spherical halo 54 filamentary structure 54 planetary surfaces 54 galactic disk 54 gravity warps 54 asteroidal 54 Saturn magnetosphere 54 Jovian moon 54 meteoroid 54 Type Ia supernovas 53 Cosmic ray 53 moon Enceladus 53 Solar flares 53 airglow 53 Earthlike planet 53 astrophysical objects 53 exosphere 53 elongated orbits 53 alien civilizations 53 auroral displays 53 Antennae Galaxies 53 Saturnian moon 53 lensing galaxy 53 interstellar particles 53 energetic electrons 53 extrasolar 53 supervolcanoes 53 Ulysses spacecraft 53 planets orbits 53 cosmic cannibal 53 supersymmetric particles 53 satellites orbiting Earth 53 HiRISE image 52 ultraviolet wavelengths 52 electromagnetic signals 52 Alfven waves 52 hypersonic speeds 52 Mars landers 52 GJ#b 52 Gliese #c 52 TNOs 52 gravitational keyhole 52 Gamma rays 52 Ground penetrating radar 52 earthlike planets 52 icy moons 52 Earth magnetosphere 52 volcanic plumes 52 terahertz waves 52 VISTA telescope 52 eclipsing binary 52 supergiant star 52 Zeta Ophiuchi 52 circumstellar 52 extragalactic 52 cosmological distances 52 substorm 52 Fermi telescope 52 Gamma ray burst 52 galactic cosmic rays 52 lightwaves 52 moon Mimas 52 Hubble orbits 52 Saturnian moons 52 gamma ray emitting 52 sterile neutrino 52 antimatter particles 52 planet Gliese #g 52 Hadron collider 52 gravitational microlensing 52 Hot Jupiters 52 merging galaxies 52 quantum particles 52 moons orbiting 52 CMB radiation 51 spectroscopic measurements 51 Kuiper Belt Objects 51 periodic dimming 51 galaxies collide 51 meteoroids 51 Mandushev 51 ejecta blanket 51 inhabitable planets 51 neutralinos 51 solitons 51 Galileo spacecraft 51 distant galaxy clusters 51 asteroid impacts 51 stellar nurseries 51 detect gravitational waves 51 Particle accelerators 51 martian rocks 51 TrES 4 51 moons Phobos 51 faint galaxies 51 dust mote 51 filamentary structures 51 coronal loop 51 elliptical galaxy 51 planetary transits 51 interplanetary spacecraft 51 HM Cancri 51 moonquakes 51 Martian rovers 51 airbursts 51 exoplanetary 51 solar corona 51 electron diffusion 51 axions 51 Peony nebula star 51 subspace 51 quantum teleportation 51 tractor beam 51 elliptical orbits 51 HARPS instrument 51 Virgo Cluster 51 Gemini constellation 51 magnetic monopoles 51 galactic halo 51 Epsilon Aurigae 51 stellar occultation 51 relativistic jets 51 diffuse aurora 51 Cosmic rays 51 volcanic plume 51 galaxy 51 gravitons 51 Borealis basin 51 magnetic substorms 51 alien spaceships 50 Comet Halley 50 gaseous planet 50 Higgs particle 50 celestial sphere 50 astronomical objects 50 asteroid 50 interstellar cloud 50 Martian surface 50 circumstellar disk 50 magnetopause 50 Gamma ray bursts 50 starquakes 50 galactic mergers 50 smallest exoplanet 50 subsurface ocean 50 supergiant stars 50 albedo reflectivity 50 astrophysical phenomena 50 sterile neutrinos 50 gravitational lenses 50 cosmic phenomena 50 evanescent waves 50 X ray emission 50 habitable planets 50 Extrasolar planets 50 Cat Paw Nebula 50 Encke gap 50 planetary orbits 50 Syrtis Major 50 WASP #b 50 quantum particle 50 photon pairs 50 distant supernovae 50 matter antimatter annihilation 50 Mars moon Phobos 50 exo planets 50 auroral activity 50 habitable worlds 50 Io volcanoes 50 wormholes 50 unmanned probes 50 UB# Xena 50 basaltic rocks 50 jet contrails 50 AGNs 50 gyres 50 comets asteroids 50 Andromeda galaxy 50 X ray pulses 50 evaporite deposits 50 ionized gases 50 interstellar boundary 50 Comet Encke 50 lightspeed 50 HD#b 50 runaway thermonuclear 50 terahertz frequencies 50 moonlet 50 hypervelocity star 50 moon Io 50 planet 50 occultations 50 Plate tectonics 50 planet Gliese #c 50 electron orbits 50 interplanetary 50 cometary impacts 50 galactic cores 50 extraterrestrial origin 50 distances 50 Galilean moons 50 Valles Marineris 50 Earthlike planets 50 asteroid collisions 50 Distant galaxies 50 infall 49 lunar craters 49 X ray binary 49 spatially separated 49 exo planet 49 katabatic winds 49 antimatter atoms 49 magnetars 49 Extraterrestrial UFOs 49 comet tail 49 sunlike stars 49 orbits Saturn 49 orbiting planets 49 detect gamma rays 49 Jupiter moon Io 49 Saturn Cassini 49 GJ #b [001] 49 Invisibility cloak 49 inner moons 49 Jovian moons 49 galactic clusters 49 Magellanic Stream 49 asteroids comets 49 Magnetars 49 outermost planets 49 invisibility cloaking 49 GROND 49 polar vortex 49 ballistic trajectories 49 geoneutrinos 49 reflection nebula 49 Ring Nebula 49 particle acceleration 49 binary asteroid 49 type Ia supernova 49 active galactic nucleus 49 Neutron stars 49 Epsilon Eridani 49 ULP cepheids 49 Martian craters 49 protoplanet 49 Geminga 49 millisecond pulsars 49 ancient runes 49 X ray wavelengths 49 cometary material 49 Wolszczan 49 accretion disks 49 Muons 49 Valles Marineris canyon 49 Tectonic plates 49 Earthlike 49 planet magnetosphere 49 Coma Cluster 49 meteoritic material 49 microlensing events 49 exoplanets orbiting 49 millisecond pulsar 49 superheavy elements 49 quantum mechanically 49 self replicating nanobots 49 distant supernovas 49 Agulhas Current 49 planet WASP #b 49 Upsilon Andromedae b 49 gamma ray emission 49 infrared spectrometers 49 microquasar 49 Supernova #A 49 Sagittarius dwarf galaxy 49 interstellar 49 VB #b 49 crustal deformation 49 advection 49 nanoscale phenomena 49 synchrotron x ray 49 gamma ray detectors 49 Quantum teleportation 49 deep convective clouds 49 geyser plumes 49 transiting exoplanet 49 galaxy cluster 49 blackholes 49 planetoids 49 supernova explosion 49 Rossby waves 49 heavily cratered 49 microbial ecosystems 49 spacetime 49 GQ Lupi 49 Type Ia supernova 49 exosolar planets 49 electronic excitations 49 spectral fingerprint 49 hypersonic missiles 49 sun corona 49 Alfvén waves 48 coronal loops 48 planetary Transits 48 Wolf Rayet stars 48 Saharan Desert 48 Cepheid variables 48 microlensing technique 48 Oort cloud 48 Substorms 48 photochemical reactions 48 hypervelocity 48 Martian terrain 48 interstellar space 48 Galactic cosmic rays 48 radial velocities 48 nucleosynthesis 48 galactic alignment 48 Doppler shifts 48 protons collide 48 heliopause 48 UFO phenomena 48 Gravitational lensing 48 spacecraft flyby 48 spacecrafts 48 ocean basins 48 gravitational lens 48 Evolution Explorer 48 Comet Hartley 2 48 Perseus Cluster 48 supersonically 48 auroral 48 mineral olivine 48 comet 48 lunar equator 48 coronal holes 48 radial velocity technique 48 THz radiation 48 retrograde orbit 48 interstellar dust grains 48 Coma cluster 48 Earth objects NEOs 48 galactic bulge 48 melting icebergs 48 planetary atmospheres 48 Viking Lander 48 Gliese #G 48 Shackleton crater 48 Heliospheric Observatory SOHO 48 Helix Nebula 48 magnetospheres 48 SN #gy 48 Saturn moon Mimas 48 fault scarps 48 desolate deserts 48 Nasa spacecraft 48 electron neutrinos 48 tropical latitudes 48 foreground galaxy 48 distant galaxy 48 Herbig Ae Be 48 IBEX spacecraft 48 gravitational wave 48 crustal thickness 48 Voyager spacecraft 48 tiny meteoroids 48 antiparticle 48 extrasolar planetary 48 femtosecond timescale 48 geostationary orbits 48 dwarf spheroidal galaxies 48 NASA THEMIS 48 celestial object 48 photosphere 48 prebiotic molecules 48 globulars 48 magnetized plasma 48 red supergiants 48 ringed planet 48 collisional 48 polar regions 48 accretion disk 48 radioactive nuclei 48 undiscovered particle 48 magnetotail 48 cosmic ray collisions 48 hypernova 48 Mars Squyres 48 Kuiper belt 48 polar icecap 48 galactic magnetic 48 magnetic monopole 48 Upsilon Andromedae 48 visible wavelengths 48 cryovolcanism 48 thermonuclear fusion 48 galactic collisions 48 geosynchronous satellites 48 highly elliptical orbits 48 planet habitability 48 lowermost mantle 48 cosmic ray 48 sub glacial lakes 48 VY Canis Majoris 48 proplyds 48 Tuamotu Archipelago 48 Saturn rings 48 antineutrinos 48 comet Hale Bopp 48 type Ia supernovae 48 faraway galaxies 48 Digital watermarks 48 submillimeter 48 comet nucleus 48 planetwide 48 orbiting spacecraft 48 Tunguska asteroid 48 COROT exo 3b 48 interstellar medium 48 extrasolar planetary systems 48 quantum phenomena 48 particle detectors 48 Martian landscape 48 Beta Pictoris b 48 exerts gravitational pull 48 active galactic nuclei 48 Saturn outermost 48 gamma ray flares 48 neutrino detectors 48 Saturn moon Enceladus 48 protoplanetary disks 48 NASA QuikScat satellite 48 obscuration 48 Martian crater 48 celestial phenomena 48 optical wavelengths 48 interstellar clouds 48 observable universe 48 Doppler shift 48 quantum oscillations 48 Jovian planets 48 ESO telescope 48 colliders 47 ionised gas 47 ENAs 47 Sojourner rover 47 Earth magnetotail 47 Terahertz radiation 47 inner asteroid belt 47 olivine mineral 47 interstellar dust clouds 47 Earth ionosphere 47 spectral bands 47 X ray binaries 47 magnetic reconnection 47 W bosons 47 irregularly shaped asteroid 47 Cancri e 47 martian landscape 47 positronium atoms 47 gamma ray flashes 47 Manned missions 47 subatomic particle 47 brownish haze 47 Parallel universes 47 Herschel Crater 47 sized planets orbiting 47 Saturnian 47 soliton 47 supernovae explosions 47 superdense 47 CERN LHC 47 planetary alignments 47 ionise 47 polar craters 47 infalling 47 infinities 47 Konacki 47 CoRoT #b 47 Elenin 47 X rays gamma rays 47 hematite mineral 47 Herbig Haro 47 planets moons 47 baryonic matter 47 CoRoT 9b 47 transiting planets 47 Fashion Movie Reviews 47 terra forming 47 celestial mechanics 47 cosmic particles 47 microbots 47 Huygens descent 47 quantum cryptographic 47 eccentric orbits 47 Terahertz waves 47 proto cluster 47 Super Kamiokande 47 Stephan Quintet 47 Saturn Enceladus 47 asteroid flyby 47 seafloors 47 silicon monoxide 47 Chajnantor 47 AB Aurigae 47 Fornax cluster 47 Galilean satellites 47 Saturnian system 47 wave particle duality 47 Carina constellation 47 panchromatic camera 47 X ray telescopes 47 hydrostatic equilibrium 47 gamma ray photons 47 Martian dunes 47 galaxy clusters 47 quantum entanglement 47 aurorae 47 Rydberg atom 47 cosmological theories 47 undersea volcanoes 47 arcminutes 47 deserts jungles 47 luminous galaxies 47 Earth orbiting satellites 47 Caloris Basin 47 Nibiru 47 HL Tau 47 extraterrestrial visitation 47 entangled qubits 47 baryon 47 infrared ultraviolet 47 coronal mass ejections 47 distant galaxies 47 nuclides 47 asteroids 47 martian atmosphere 47 CAIs 47 particles WIMPs 47 aerosol particles 47 ionospheric 47 muon neutrino 47 dynamical processes 47 alien lifeform 47 planemos 47 Titan Saturn 47 Kuiper Belt objects 47 intracluster 47 gravitationally bound 47 tachyon 47 mesosphere 47 permanently shadowed craters 47 Hipparcos 47 bolide 47 tectonic stresses 47 permanently shadowed 47 extraterrestial 47 radioactive nuclides 47 Martian dust 47 supercontinents 47 supercomputer simulations 47 Earths crust 47 Venus transits 47 stellar seismology 47 isostatic rebound 47 galaxy NGC 47 extrasolar planets orbiting 47 Kuiper Belt object 47 filamentary 47 inhomogeneous 47 microshutters 47 orbiting telescopes 47 meteor impacts 47 moon Mab 47 colder denser 47 clumpiness 47 Martian rocks 47 Red Rectangle 47 sulphate particles 47 planet Uranus 47 faraway planets 47 rotating updraft 47 subantarctic 47 electromagnetic impulses 47 impactor spacecraft 47 Sagittarius B2 47 comet Tempel Tuttle 47 Kuiper belt objects 47 Andromeda Galaxy 47 hydroxyl molecules 47 telescope eyepiece 47 giant elliptical galaxy 47 icy comets 47 gravitational slingshot 46 Infrared Mapping Spectrometer VIMS 46 ionosphere 46 planets atmospheres 46 neutrino mass 46 chromosphere 46 cosmic neutrinos 46 NASA satellites orbiting 46 RRATs 46 RAINEX 46 rotating neutron stars 46 GZK cutoff 46 exoplanets planets 46 wispy cirrus clouds 46 tiniest speck 46 spectral fingerprints 46 mantling 46 lunar poles 46 meteor 46 solar flares 46 rubidium vapor 46 X ray observatories 46 Delta Cephei 46 telescopically 46 terahertz rays 46 wavefronts 46 gamma ray burst 46 galaxy M# [001] 46 blazar 46 emit X rays 46 orbital velocity 46 erupting volcanoes 46 brightest supernova 46 AU Mic 46 radial velocity method 46 hypervelocity stars 46 Spawned grave atrocities 46 Proxima Centauri 46 galactic nucleus 46 tectonic plate boundary 46 SN #A 46 Hellas Basin 46 pions 46 radial velocity 46 cosmic microwave radiation 46 exoplanet atmospheres 46 Hyperspectral imaging 46 gamma ray observatory 46 Stargates 46 cometary dust 46 Dan Werthimer 46 planetesimals 46 nanometers billionths 46 floating orbs 46 infalling gas 46 infosphere 46 abiogenesis 46 solar prominences 46 EPOXI spacecraft 46 fractal patterns 46 Dust devils 46 atomic lattice 46 Jupiter moons 46 moon Charon 46 afterglows 46 USArray 46 Comet Elenin 46 hypersonic glider 46 outer planets 46 LHC experiments 46 Wolf Rayet star 46 assumed planets circling 46 Higgs singlet 46 Laurentide ice sheet 46 Opportunity rovers 46 planets orbiting stars 46 quantum tunneling 46 retroreflector 46 Cumbre Vieja 46 atmospheric phenomena 46 spatial scales 46 tectonic plate boundaries 46 gravitational interaction 46 planetary nebulae 46 missing baryons 46 Martian lander 46 Brigham Grette 46 interstellar dust samples 46 ecliptic plane 46 nucleon 46 exoplanet 46 hydrothermal fluid 46 Raman scattering 46 Saturn outermost ring 46 Milky Way halo 46 Saturnian moon Titan 46 oppositely directed 46 mantle plumes 46 stony meteorites 46 cosmological parameters 46 phyllosilicates 46 macroscopic objects 46 THEMIS satellites 46 Baptistina 46 gravitational perturbations 46 particle colliders 46 icy moon Enceladus 46 Degama helps 46 exoplanetary systems 46 rubbly 46 landmasses 46 Chajnantor plateau 46 earthlike 46 ray Space Telescope 46 neutron radiation 46 millimeter wavelengths 46 SMBH 46 ejecta 46 cluster NGC 46 planets asteroids 46 protoplanets 46 RS Ophiuchi 46 Venusian 46 spiral galaxy NGC 46 North Pacific Gyre 46 lunar crust 46 multipartite entanglement 46 ultraviolet radiation emitted 46 atomic particles 46 Geminid meteors 46 wavefunction 46 featureless landscape 46 situ measurements 46 Voyager probes 46 subglacial lakes 46 Subatomic particles 46 massless 46 Photons 46 hadron 46 ion thrusters 46 active volcanism 46 spacecraft 46 Huygens lander 46 Cassini Huygens 46 Milky Way galaxy 46 Pleiades cluster 46 antiferromagnets 46 magnetic vortices 46 orbital rendezvous 46 heliospheric 46 Elliptical galaxies 46 HiRISE camera 46 Jupiter magnetosphere 46 Huygens spacecraft 46 comets orbiting 46 proton proton collisions 46 spectroscopically 46 GRBs 46 polar latitudes 46 superstrings 46 nucleons 46 Lagoon Nebula 46 transiting exoplanets 46 heliosphere 46 atmospheric disturbances 46 asteroids orbiting 46 RXTE 46 protoplanetary discs 46 redshifted 46 interacting galaxies 46 transiting planet 46 Tempel Tuttle 46 chemtrail 46 magnetic excitations 46 planets 46 Bok globules 46 Orionid 46 Keck Interferometer 46 extraterrestrial UFO 46 quantum weirdness 46 carbonate globules 46 lithosphere 46 Earth radii 46 tidally 46 faraway galaxy 46 crewed spacecraft 46 antineutrino 45 Halley comet 45 Aerial photography 45 Earth orbit 45 tectonic movements 45 terraforming Mars 45 ARGUS IS 45 protostar 45 LEO satellites 45 particle smasher 45 Corot 7b 45 Olympus Mons 45 Cherenkov radiation 45 thermal inertia 45 outer corona 45 inter planetary 45 Cerro Paranal 45 comet Boethin 45 ultracold temperatures 45 spacecraft orbiting 45 HIP #b 45 Eta Carinae 45 interstellar dust particles 45 HiRise camera 45 particle physics experiments 45 aeolian 45 gravitational pulls 45 spinning pulsar 45 Electromagnetic waves 45 ultradense 45 CoRoT 7b 45 alien beings 45 Mimivirus 45 infrared spectrums 45 coronal mass ejections CMEs 45 Phobos 45 satellites orbiting 45 axion 45 Comet 9P/Tempel 1 45 globular cluster M# 45 superstring theory 45 Hawking radiation 45 lunar soil 45 Globular clusters 45 midlatitude 45 inhospitable climes 45 silicate dust 45 magnetic coupling 45 antigravity 45 atmospheric CO2 levels 45 superatoms 45 sunlike star 45 Quantum cryptography 45 smoggy atmosphere 45 Aram Chaos 45 gluon 45 inflated monochrome Leviathan 45 planetesimal 45 temperature gradients 45 Bernhard Fleck 45 globular cluster 45 robotic explorer 45 microwave radiation 45 UV wavelengths 45 NEOSSat 45 noosphere 45 distant quasars 45 gamma ray telescopes 45 energetic gamma rays 45 matter antimatter asymmetry 45 Polar Regions 45 Orion constellation 45 dust enshrouded 45 thermally induced 45 scramjets 45 astronomical phenomena 45 CMB photons 45 magnetar 45 mass beachings 45 glaciological 45 Greenland icecap 45 orbital resonance 45 Maxwell equations 45 Comet Churyumov Gerasimenko 45 cosmic radiation 45 COROT 45 prominences 45 photons particles 45 exobiology 45 Higgs Boson particle 45 micrometeoroids 45 moon Titan 45 Saturn aurora 45 nebular 45 Hubble Constant 45 Orion nebula 45 magnetic anisotropy 45 supernova explosions 45 P/# A2 45 thermonuclear reactions 45 equatorial 45 Comet Hartley 45 Meridiani 45 ultrashort laser pulses 45 atomic nucleus 45 Great Conveyor Belt 45 gamma rays 45 Hanny Voorwerp 45 interstellar dust 45 SCP #F# 45 X ray observatory 45 equatorial belt 45 Tarantula nebula 45 suface 45 Eurasian landmass 45 satellite altimetry 45 hydrated minerals 45 Jupiter Ganymede 45 Comet Tempel Tuttle 45 luminosities 45 surface plasmons 45 moons circling 45 shadowy craters 45 LFA sonar 45 Spitzer infrared spectrograph 45 helium nuclei 45 starburst galaxy 45 zodiacal light 45 quantum bits 45 Kilauea lava 45 ionized gas 45 asteroid Lutetia 45 Sneakernet 45 NASA CloudSat 45 alien lifeforms 45 Marc Kuchner 45 gravitational redshift 45 binary quasar 45 blazars 45 protoplanetary disk 45 planets circling 45 numerical simulation 45 spatially resolved 45 solar neutrinos 45 terahertz frequency 45 Siberian Traps 45 tokamaks 45 micrometer scale 45 relativistic speeds 45 Earth biosphere 45 aperture telescope 45 cosmic ray flux 45 lunar orbits 45 cometary 45 Mars orbiters 45 storm churned northward 45 Cosmic Microwave Background 45 nebulosity 45 Churyumov Gerasimenko 45 spicules 45 Einstein relativity theory 45 Sumatra Andaman earthquake 45 GJ #b [002] 45 extraterrestrial 45 Tarantula Nebula 45 Red Planet 45 Samuel Oschin Telescope 45 flood basalts 45 RY Sagittarii 45 Swift Tuttle 45 Ultraviolet Imaging Spectrograph UVIS 45 Kuiper belt object 45 stargates 45 submillimetre wavelengths 45 lunar explorers 45 graviton 45 Saharan dust 45 Mars Spirit rover 45 gravitational waves 45 optical cloaking 45 Crab Nebula 45 supernova remnants 45 gravitational tugs 45 meridional flow 45 protoplanetary disc 45 Cometary 45 magnetically levitated trains 45 auroral emissions 45 magnetosphere 45 Homing pigeons 45 Mott insulator 45 spinning neutron stars 45 astrobiological 45 magma ocean