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(Click for frequent words.) 72 gravitational interaction 72 Upsilon Andromedae 71 galactic disk 71 eccentric orbits 71 elongated orbits 69 rotational axis 69 circular orbits 69 moons orbiting 69 retrograde orbit 69 gravitational interactions 69 Kuiper belt objects 69 planetary orbits 68 orbits 68 Fomalhaut b 68 icy moons 68 comets orbiting 68 millisecond pulsars 68 planet orbits 68 gravitational pulls 68 red supergiant 68 planets 68 retrograde orbits 67 moon Io 67 elliptical orbits 67 KBOs 67 Jovian moons 67 protoplanet 67 planets moons 67 HM Cancri 67 Triangulum 66 CoRoT #b 66 Galilean moons 66 Neutron stars 66 extrasolar 66 circumstellar disk 66 circumstellar disks 66 jovian 66 transiting planet 66 globulars 66 lensing galaxy 66 TrES 4 65 substorm 65 Kuiper Belt objects 65 gaseous planet 65 merging galaxies 65 cometary debris 65 Toutatis 65 protoplanetary disk 65 exoplanets orbiting 65 planets Uranus 65 Oort cloud 65 occultations 65 circumstellar 65 protoplanets 65 gravity warps 65 exoplanetary 65 outermost planets 65 Earth magnetosphere 65 rotating neutron stars 65 galactic cores 65 filamentary structure 65 Cepheid variables 65 planetary nebulae 64 planet Uranus 64 millisecond pulsar 64 WASP #b 64 gravitational perturbations 64 Hot Jupiters 64 Kuiper belt 64 moonlets 64 prograde 64 magnetotail 64 Wolf Rayet star 64 transiting planets 64 constellation Ursa Major 64 Gravitational waves 64 planets asteroids 64 Comet Tempel Tuttle 64 Zeta Ophiuchi 64 periodic dimming 64 Arches Cluster 64 VY Canis Majoris 64 Saturn Uranus 64 magnetic polarity 64 blue supergiant 64 constellation Cassiopeia 64 coronal loops 64 zodiacal constellations 64 Jupiter Uranus 64 Andromeda galaxy 64 HD#b 64 elongated orbit 64 Oort Cloud 64 spacetime 63 AGNs 63 celestial sphere 63 inhabitable planets 63 gravitationally bound 63 galaxies collide 63 Quadrantids 63 gravitational tugs 63 infall 63 galaxy M# [002] 63 orbits Saturn 63 magnetic reconnection 63 Antennae Galaxies 63 supernova explosions 63 gravitational lenses 63 gravitationally 63 binary asteroid 63 foreground galaxy 63 protostar 63 cosmological distances 63 Cepheids 63 galaxy NGC 63 Kuiper Belt Objects 63 orbiting planets 63 interstellar clouds 63 orbital resonance 63 supernova explosion 63 moon gravitational pull 63 accretion disks 63 X ray binary 63 comet Tempel Tuttle 63 cosmic cannibal 63 Milky Way halo 63 sunlike stars 63 Epsilon Eridani 63 airglow 63 Saturn moon Mimas 63 trans Neptunian objects 63 eclipsing binary 63 radial velocity 63 photosphere 63 asterism 63 dynamical evolution 62 HL Tau 62 sized planets orbiting 62 gravitational tides 62 stellar nurseries 62 lunar crust 62 moonlet 62 magnetars 62 interstellar cloud 62 axial tilt 62 red supergiants 62 gaseous planets 62 gravitational microlensing 62 Saturnian moons 62 planets comets 62 elliptical galaxy 62 dense clumps 62 distant supernovae 62 Pleiades star 62 Cancri e 62 moon Mimas 62 constellation Virgo 62 galactic clusters 62 zodiac constellations 62 Epsilon Aurigae 62 Corot 9b 62 asteroids comets 62 comets asteroids 62 spiral galaxies 62 perihelion 62 planemos 62 Proxima Centauri 62 GJ#b 62 moon Ganymede 62 outer planets 62 electron orbits 62 comet orbit 62 nebulosity 62 Earth radii 62 planetoids 62 axions 62 accretion disk 62 coronal mass ejections CMEs 62 Kepler 9c 62 P/# A2 62 magnetosphere 62 Saturn magnetosphere 62 Yarkovsky effect 62 exoplanet orbiting 62 zodiacal light 62 BP Psc 62 globular cluster 62 galactic halo 62 Saturn rings 62 transiting exoplanet 62 Beta Pictoris b 62 galaxy M# [001] 61 highly elliptical orbit 61 neutron star 61 Trojan asteroids 61 quantum particle 61 nebular 61 exo planets 61 intrinsic brightness 61 neutralinos 61 planetesimals 61 Bug Nebula 61 dwarf galaxy 61 Milankovitch cycles 61 moons Phobos 61 planet magnetosphere 61 magnetar 61 Delta Cephei 61 spherical halo 61 planet WASP #b 61 Wolf Rayet stars 61 precessing 61 Saturn Cassini 61 Orion nebula 61 heliospheric 61 Churyumov Gerasimenko 61 exosphere 61 Magellanic Clouds 61 Andromeda Galaxy 61 supergiant star 61 Coma Cluster 61 Geminga 61 Red Rectangle 61 planet transits 61 AU Mic 61 baryon 61 innermost planet 61 SN #A 61 interstellar dust grains 61 ecliptic 61 asteroids orbiting 61 Jupiter magnetosphere 61 auroral displays 61 occulted 61 astrophysical phenomena 61 starburst galaxy 61 AB Aurigae 61 moons 61 stellar occultation 61 infalling 61 filamentary structures 61 Galilean satellites 61 observable universe 61 Carina constellation 61 novae 61 GQ Lupi 61 Milky Way Galaxy 61 Upsilon Andromedae b 61 Pluto Charon 61 Meteor showers 61 celestial bodies 61 magnetospheric 61 supermassive 61 Gliese #e 61 HD #b [002] 61 constellation Hercules 61 protostars 60 X ray pulses 60 tidal bulge 60 supernova remnants 60 celestial object 60 planets orbiting sun 60 galactic cosmic rays 60 Fornax cluster 60 starburst galaxies 60 Kuiper belt object 60 sunlike star 60 Ring Nebula 60 #P/Churyumov-Gerasimenko 60 X ray telescopes 60 orbiting 60 globular clusters 60 Type Ia supernova 60 planetary Transits 60 X ray emission 60 spacecraft flyby 60 Henize #-# 60 cometary impacts 60 supernovae explode 60 SMBH 60 astrophysical objects 60 waxing gibbous moon 60 galactic mergers 60 Higgs bosons 60 YORP effect 60 distant galaxy 60 Comet Holmes 60 auroral activity 60 proto cluster 60 tidally 60 Iapetus 60 Kuiper Belt object 60 proplyds 60 icy comets 60 tidal tails 60 planets orbiting distant 60 Uranus Neptune 60 X ray binaries 60 galactic bulge 60 Orionids 60 elliptical galaxies 60 Bok globules 60 Saturn Jupiter Uranus 60 SMBHs 60 Coma cluster 60 polar vortex 60 Pluto Eris 60 Mercury Uranus 60 galaxy cluster 60 dwarf spheroidal galaxies 60 RY Sagittarii 60 impactors 60 solar minima 60 planetary nebulas 60 reflection nebula 60 dwarf galaxies 60 slender crescent 60 mu Arae 60 ionised gas 60 moons circling 60 Comet Halley 60 Virgo Cluster 60 Solar TErrestrial RElations Observatory 60 spiral galaxy 60 asteroidal 60 Magnetic reconnection 60 CoRoT 7b 60 X ray wavelengths 60 Omega Centauri 60 meridional flow 60 Ulysses spacecraft 60 protoplanetary 60 GJ #b [001] 60 galaxy clusters 60 GJ #b [002] 60 active galactic nuclei 60 gravitational attraction 60 super Earths 60 star Proxima Centauri 59 exosolar planets 59 sodium atoms 59 outer corona 59 cluster NGC 59 Spiral galaxies 59 Saturn outermost 59 Cat Paw Nebula 59 smallest exoplanet 59 planet HD #b 59 terrestrial planets 59 planetary embryos 59 HD #b [001] 59 aurorae 59 RS Ophiuchi 59 NGC# 59 celestial equator 59 gravitational lens 59 electron ion 59 relativistic particles 59 Fermi telescope 59 galactic magnetic 59 hot Jupiters 59 antiparticle 59 lunar equator 59 emit X rays 59 solar corona 59 proto planetary disk 59 microlensing events 59 SN#A 59 XO 3b 59 galaxies 59 Earthlike planets 59 lunar perigee 59 comet Lulin 59 Quadrantid meteor shower 59 supersymmetric particles 59 binary asteroids 59 emission nebula 59 antimatter particles 59 planets orbiting stars 59 cosmic phenomena 59 ejecta 59 luminous galaxies 59 globular star 59 ULIRGs 59 Doppler shifts 59 gravitational tug 59 Globular clusters 59 Orion constellation 59 ejecta blanket 59 eclipsing binaries 59 constellation Aquarius 59 Gamma ray bursts 59 Saturnian system 59 SIRTF 59 albedo reflectivity 59 baryonic 59 constellation Taurus 59 nucleon 59 supernovae explosions 59 galaxy 59 Gemini constellation 59 afterglows 59 Veil Nebula 59 Alfven waves 59 silicate dust 59 CMB photons 59 Mandushev 59 Beta Pictoris 59 X ray emitting 59 Trapezium 59 Earth ionosphere 59 metallicity 59 Saturnian moon 59 planetary transits 59 brown dwarfs 58 nebula NGC 58 Comet Machholz 58 Gravitational lensing 58 Tempel Tuttle 58 Corot 7b 58 Jupiter Ganymede 58 faraway galaxies 58 spheroidal 58 galactic equator 58 radial velocity technique 58 Gliese #c 58 magnetic monopoles 58 ionized hydrogen 58 substorms 58 galactic alignment 58 solar nebula 58 Lagoon Nebula 58 comet 58 hexagonal mirrors 58 habitable zones 58 orbital inclination 58 ultraviolet wavelengths 58 radial velocities 58 gravitational slingshot 58 earthshine 58 Saturn moons 58 Doppler shift 58 Earth magnetotail 58 Eta Carinae 58 SN #gy 58 blue straggler 58 planets orbiting 58 Mimas 58 coronal holes 58 Solar flares 58 Mars Uranus 58 quantum particles 58 Helix Nebula 58 ionized particles 58 RX J# 58 GRB #B 58 constellation Eridanus 58 redshifted 58 energetic electrons 58 HiRISE image 58 moons Europa 58 interstellar dust clouds 58 ionized gases 58 Neptune Uranus 58 planet gravitational tug 58 Sagittarius dwarf galaxy 58 sunward 58 cosmic ray flux 58 nebulae 58 Cosmic Microwave Background 58 cosmic strings 58 rocky planets 58 Jupiter Saturn Uranus 58 Ringed Planet 58 helium nuclei 58 spiral nebulae 58 Sedna 58 oblate spheroid 58 Evolution Explorer 58 fainter objects 58 Jupiter moon Io 58 Comet Elenin 58 comet nucleus 58 NGC #A 58 Pleiades cluster 58 silicon monoxide 58 V# Mon 58 GRBs 58 spatial dimensions 58 orbital angular momentum 58 planetesimal 58 nebula 58 COROT 7b 58 velocity dispersion 58 Methone 58 magnetopause 58 penumbral shadow 58 Uranus 58 R Coronae Borealis 58 detect gravitational waves 58 superluminal 58 electron neutrino 58 THEMIS satellites 58 subsurface ocean 58 meteoritic material 58 constellation Ophiuchus 58 volcanic moon Io 57 arcseconds 57 Hanny Voorwerp 57 magma ocean 57 barred spiral galaxy 57 Jovian moon 57 luminosities 57 gamma ray emitting 57 Virgo cluster 57 asteroid Vesta 57 infalling gas 57 proto planetary disks 57 Substorms 57 planetary nebula 57 OGLE TR #b 57 gibbous 57 Saturn moon Iapetus 57 coronal loop 57 extraterrestrial UFOs 57 gravitational keyhole 57 Saturnian 57 nucleosynthesis 57 lightwaves 57 solar prominences 57 interacting galaxies 57 exoplanets planets 57 Super Earths 57 superstrings 57 Galactic cosmic rays 57 Rossby waves 57 heliopause 57 Earth gravitational pull 57 Syrtis Major 57 celestial phenomena 57 Hellas Basin 57 brightest supernova 57 highly elliptical orbits 57 Kuiper Belt Object 57 Cassini flyby 57 Orionid 57 WIMPs 57 IRAS #-# 57 interstellar particles 57 Galileo spacecraft 57 Saturn Enceladus 57 asteroids 57 orbital velocity 57 stellar occultations 57 Phoebe orbits 57 KH #D 57 waxing crescent moon 57 Platonic solids 57 Jupiter Saturn 57 Extrasolar planets 57 retroreflector 57 Noctilucent clouds 57 Hubble orbits 57 protoplanetary discs 57 vortices 57 spherically symmetric 57 astrometry 57 ecliptic plane 57 stellar seismology 57 constellation Cygnus 57 planetoid 57 type Ia supernovae 57 IBEX spacecraft 57 ringed planet 57 highly magnetized neutron 57 elliptical orbit 57 meteoroids 57 extrasolar planets 57 moonquakes 57 particle acceleration 57 planet Gliese #g 57 magnetic flux 57 aphelion 57 sterile neutrinos 57 tetrahedrons 57 TNOs 57 singularities 57 comets 57 collisional 57 chondrules 57 moon Phobos 57 giant elliptical galaxy 57 supermassive black holes 57 chromosphere 57 bosonic 57 Maunder minimum 57 Martian dust 57 extrasolar planetary systems 57 solitons 57 Helix nebula 57 planetary 57 RRATs 57 Magnetars 57 protoplanetary disks 57 diffuse aurora 57 vibrational frequency 57 neighboring Andromeda galaxy 57 supernova remnant 57 BLG #Lb 57 Solar System 57 rotational velocity 57 atoms 57 obliquity 57 olivine mineral 57 constellation Andromeda 57 Jupiter moons 57 constellation Sagittarius 57 electron spins 57 STEREO spacecraft 57 giant elliptical galaxies 57 MG J# +# 57 microlensing 57 Circinus X 1 57 crustal plates 57 meteoroid 57 Venusian atmosphere 57 interstellar medium 57 submillimeter galaxies 57 Nasa spacecraft 57 ENAs 57 gamma ray emission 57 superdense neutron star 57 Cancri 57 waxing crescent 57 Cosmic rays 57 wavefunction 57 Chi Cygni 57 Io Europa 57 planet Gliese #c 57 extragalactic 57 Geminid meteors 57 gamma ray flares 57 Uranus Jupiter 57 supergiant stars 57 redshifts 57 Kepler #b 57 moons Io 57 habitable planets 57 globular cluster M# 57 spiral galaxy NGC 57 constellation Scorpius 57 Io volcanoes 57 planetary atmospheres 57 distant suns 56 Cygnus Lyra region 56 axis wobbles 56 electromagnetic flux 56 planetary alignments 56 Crab pulsar 56 spacecraft Cassini 56 orbital eccentricity 56 constellation Leo 56 distant quasars 56 subatomic particle 56 filamentary 56 oscillations 56 interplanetary spacecraft 56 spiral galaxy M# 56 hadrons 56 moon Charon 56 microquasar 56 intracluster 56 type Ia supernova 56 equinoxes 56 Comet Lulin 56 Sagittarius B2 56 Cepheid variable 56 constellation Centaurus 56 Hubble observations 56 galactic collisions 56 synchronous orbit 56 Orionid meteors 56 magnetic fields 56 Supernovae 56 Haumea 56 Magellanic Stream 56 W boson 56 exoplanetary systems 56 photons particles 56 TrES 56 X ray observatories 56 protons neutrons 56 distant galaxies 56 Taurids 56 Saturn outermost ring 56 Earthlike 56 COROT 56 Konacki 56 star Spica 56 helium atoms 56 arcsecond 56 Milky Way galaxy 56 Trifid Nebula 56 Type Ia supernovas 56 baryonic matter 56 Type 1a supernova 56 occultation 56 CoRoT satellite 56 Distant galaxies 56 faintest galaxies 56 constellation Cetus 56 radial velocity method 56 Wolszczan 56 earthlike planets 56 waning crescent Moon 56 HD# [002] 56 Rosette Nebula 56 Shackleton crater 56 hydrostatic equilibrium 56 Stephan Quintet 56 CoRoT 9b 56 tidally locked 56 energetic cosmic rays 56 ionized gas 56 Elliptical galaxies 56 Milky Way 56 hypervelocity stars 56 VB #b 56 cosmic microwave radiation 56 extrasolar worlds 56 quasar 56 gamma ray burst 56 cosmological theories 56 antiparticles 56 neutron stars 56 Planck satellite 56 wavefronts 56 mantle plumes 56 colloidal crystals 56 Planetary nebulae 56 active galactic nucleus 56 colliding galaxies 56 Bullet Cluster 56 Earthlike planet 56 atomic lattice 56 Eridanus 56 magnetic dynamo 56 supermassive black hole 56 Gliese #G 56 CMB radiation 56 magnetic substorms 56 Borealis basin 56 muon neutrino 56 protoplanetary disc 56 Saturn moon 56 geostationary orbits 56 electron neutrinos 56 equatorial bulge 56 solstices 56 whiz harmlessly 56 cosmic ray particles 56 spirals inward 56 galaxy formation 56 radiative cooling 56 dust mote 56 Comet Churyumov Gerasimenko 56 starquakes 56 zodiacal dust 56 inner Oort Cloud 56 Venus transits 56 interstellar dust 56 solar radii 56 airbursts 56 faraway galaxy 56 Venusian 56 blazar 56 XTE J# 56 elliptical galaxy NGC 56 waning crescent moon 56 magnetic excitations 56 heavily cratered 56 moon Enceladus 56 Comet Hartley 2 56 sextile 56 gravitational lensing 56 hydrogen nuclei 56 Earths orbiting 56 Cassini flybys 56 cometary material 56 Cabeus crater 56 pulsars 56 comet Hale Bopp 56 lunar craters 55 NEAs 55 asteroid belt 55 spinning pulsar 55 gamma ray observatory 55 constellation Perseus 55 arcminutes 55 neutralino 55 Hipparcos 55 Einstein relativity theory 55 Olympus Mons 55 Uranian 55 Saturn equinox 55 comet Churyumov Gerasimenko 55 quantum mechanically 55 superheavy elements 55 cesium atom 55 Small Magellanic Cloud 55 baryons 55 mesons 55 Geminid 55 supercontinents 55 blazars 55 proto galaxies 55 ellipsoids 55 Crab Pulsar 55 inhomogeneous 55 PSR J# 55 orbital 55 galaxy redshift 55 Encke gap 55 impactor spacecraft 55 ellipse 55 electrons behave 55 Triangulum Galaxy 55 Neptunian 55 atomic nuclei 55 antiferromagnets 55 Muons 55 constellation Lyra 55 supersymmetric 55 Samuel Oschin Telescope 55 brown dwarf 55 meteor impacts 55 thin crescent 55 gravitational radiation 55 constellation Carina 55 satellites orbiting Earth 55 SN #D 55 SNe Ia 55 hypernova 55 Epimetheus 55 femtosecond timescale 55 Crab Nebula 55 GeV 55 GZK cutoff 55 heliosphere 55 heliosheath 55 Martian craters 55 Mud volcanoes 55 momenta 55 Spitzer infrared spectrograph 55 nebulas 55 distant quasar 55 glows brightly 55 Orion Nebula 55 sun corona 55 GALEX 55 backscattered 55 SNR #-#.# 55 BP Piscium 55 planetary surfaces 55 Charon Pluto 55 TGFs 55 dirty snowballs 55 novas 55 celestial objects 55 Eagle Nebula 55 Asteroid Belt 55 Eridani 55 emits X rays 55 particle colliders 55 muons 55 gyres 55 AUs 55 runaway thermonuclear 55 habitable worlds 55 atmospheric circulations 55 optical wavelengths 55 Hyades cluster 55 muon 55 gravitational tidal 55 Gamma rays 55 prominences 55 amorphous calcium carbonate 55 dwarf spheroidal 55 relativistic jets 55 noctilucent clouds 55 Type 1a supernovae 55 brightnesses 55 Gliese #g 55 vorticity 55 supernovae 55 spinning neutron 55 Carina Nebula 55 J# +# [002] 55 lunar orbits 55 quasicrystal 55 interstellar boundary 55 gamma ray bursts GRBs 55 COROT exo 3b 55 telescope eyepiece 55 vortexes 55 double helix nebula 55 thin crescent moon 55 nucleons 55 gravitational wobbles 55 solar flares 55 gamma ray photons 55 exo planet 55 galactic nuclei 55 ultracold atoms 55 nuclei 55 highly collimated 55 Ultraviolet Imaging Spectrograph UVIS 55 chemical abundances 55 extrasolar planet 55 gravitational 55 supernova 55 Saturnian moon Titan 55 plutoids 55 particles WIMPs 55 APXS 55 sunspot cluster 55 PSR J# +# 55 SIM PlanetQuest 55 molten magma 55 SN #C 55 planet orbiting 55 constellation Gemini 55 QQ# 55 Microlensing 55 cosmic ray intensity 54 Tectonic plates 54 volcanic plumes 54 pulsar 54 OGLE TR 54 HIP #b 54 astronomical observations 54 Lyrids 54 lithosphere 54 precess 54 fermion 54 Type Ia 54 macroscopic objects 54 Kuiper Belt 54 neutrino mass 54 waning gibbous 54 dipolar 54 Alycia Weinberger 54 landmasses 54 supernovas 54 Nibiru 54 fractal pattern 54 quantum superposition 54 Herschel Crater 54 plasmasphere 54 Jupiter gravitational pull 54 Gamma ray burst 54 Halley comet 54 Geminids 54 orbited Jupiter 54 particle detectors 54 electrons orbiting 54 extrasolar planets orbiting 54 Manned missions 54 Swift Tuttle 54 infrared telescopes 54 orbitals 54 gravitational redshift 54 galactic cosmic radiation 54 STEREO mission 54 Astronomically speaking 54 superposed 54 spectral fingerprint 54 spectroscopic measurements 54 astronomical objects 54 Voorwerp 54 meteoroid impacts 54 largest moon Charon 54 cosmological parameters 54 star Gliese 54 comet orbital 54 coronal mass ejections 54 electron flux 54 gamma rays emitted 54 hematite mineral 54 auroral 54 blackholes 54 Martian terrain 54 CoRoT 54 Comet NEAT 54 relativistic speeds 54 constellation Auriga 54 lowermost mantle 54 Martian moons Phobos 54 gravities