Related by context. All words. (Click for frequent words.) 75 Hanny Voorwerp 66 galaxy M# [002] 65 Comet Holmes 65 Omega Centauri 64 Fomalhaut b 64 spiral galaxy NGC 64 SN #C 63 SN #A 63 lensing galaxy 63 intrinsic brightness 63 Epsilon Aurigae 63 astronomers 62 planetary nebula 62 constellation Eridanus 62 RS Ophiuchi 62 exoplanet orbiting 62 Fermi telescope 62 galaxy M# [001] 62 galaxy NGC 61 Virgo Cluster 61 supernova remnant 61 eclipsing binary 61 HD#b 61 zodiacal light 61 AGNs 61 reflection nebula 61 Bug Nebula 61 electron orbiting 61 Red Rectangle 60 Geminga 60 Helix Nebula 60 SN#A 60 GJ #b [001] 60 barred spiral galaxy 60 constellation Aquarius 60 AB Aurigae 60 aurorae 60 constellation Cassiopeia 60 gaseous planet 60 SN #gy 60 supergiant star 60 distant quasar 60 celestial object 60 G#.# +#.# 60 distant galaxy 60 quasar 60 emission nebula 60 elliptical galaxy NGC 60 HD #b [002] 60 planetary Transits 60 type Ia supernova 60 comet McNaught 60 gravitationally bound 60 distant galaxy clusters 60 spiral nebulae 60 exo planets 60 GRB #B 59 Eta Carinae 59 constellation Ursa Major 59 P/# A2 59 starburst galaxy 59 planet Uranus 59 extragalactic 59 GQ Lupi 59 Epsilon Eridani 59 star Fomalhaut 59 Beta Pictoris 59 Fritz Zwicky 59 SCP #F# 59 X ray emission 59 Corot 7b 59 planetary nebulas 59 constellation Sagittarius 59 constellation Hercules 59 foreground galaxy 59 Kuiper belt objects 59 ray Space Telescope 59 cosmic cannibal 59 GJ #b [002] 59 constellation Carina 59 Gliese #c 59 coronagraph 59 axions 59 BLG #Lb 58 magnetar 58 XMM Newton 58 smallest exoplanet 58 Henize #-# 58 Type 1a supernovae 58 Ring Nebula 58 protoplanet 58 Type Ia supernova 58 moon Io 58 Coma cluster 58 blazar 58 X ray afterglow 58 NGC #A 58 BP Psc 58 sundog 58 Crab Nebula 58 spiral galaxy 58 outer corona 58 supernova SN 58 circumstellar disk 58 X ray pulses 58 NGC# 58 active galactic nucleus 58 exoplanets orbiting 58 X ray telescopes 58 supernova explosion 58 type Ia supernovae 58 SNR #-#.# 58 GRB # 58 red supergiant 58 Fornax cluster 58 Upsilon Andromedae 58 Jupiter moon Io 58 stellar occultation 58 interacting galaxies 58 microquasar 57 Butterfly Nebula 57 nebular 57 Galilean moons 57 constellation Centaurus 57 planet orbiting 57 constellation Bootes 57 sodium atoms 57 V# Mon 57 ROSAT 57 millisecond pulsar 57 occulted 57 KH #D 57 VIRTIS 57 Crab Pulsar 57 relativistic jets 57 Oort Cloud 57 cosmological distances 57 constellation Scorpius 57 Pieter van Dokkum 57 planet HD #b 57 accretion disk 57 trans Neptunian objects 57 blue supergiant 57 OGLE TR #b 57 ESA XMM Newton 57 Orion nebula 57 SOHO spacecraft 57 spectroscopic observations 57 Virgo cluster 57 distant supernovae 57 distant quasars 57 Rosette Nebula 57 GRB# 57 Oort cloud 57 earthshine 57 Comet Lulin 57 photosphere 57 constellation Taurus 57 infalling 57 dwarf spheroidal galaxies 57 occultations 57 AU Mic 57 constellation Aquila 57 cometary material 57 dwarf galaxy 57 orbiting Chandra 57 submillimetre 57 earthlike planets 57 V# Puppis 57 retrograde orbit 57 bedrock outcropping 57 Evolution Explorer 57 gravitational lens 57 ESO telescope 57 Upsilon Andromedae b 57 constellation Virgo 57 Charon Pluto 56 interstellar cloud 56 transiting planet 56 gravitational lensing 56 Type Ia 56 UDFy # 56 Kuiper Belt object 56 VB #b 56 emit X rays 56 MG J# +# 56 RXTE 56 asterism 56 linearly polarized 56 Higgs boson particle 56 constellation Cetus 56 Cygnus X 56 Dumbbell Nebula 56 Galileo spacecraft 56 rotating neutron 56 COROT 7b 56 HL Tau 56 absorbs photons 56 RY Sagittarii 56 CoRoT satellite 56 microlensing events 56 coronal loops 56 Orion constellation 56 Stephan Quintet 56 Higgs particle 56 Giovanni Cassini 56 TrES 4 56 WASP #b 56 Pleiades star 56 star Beta Pictoris 56 X ray wavelengths 56 Higgs bosons 56 Monoceros 56 microlensing 56 galaxy cluster 56 Coma Cluster 56 merging galaxies 56 elliptical galaxy 56 galaxy NGC# 56 ESO VLT 56 Earthlike planets 56 Triangulum Galaxy 56 Tarantula Nebula 56 moons orbiting 56 Andromeda galaxy 56 Supernova #A 56 gamma ray observatory 56 giant elliptical galaxy 56 sterile neutrino 56 optical wavelengths 56 planetary nebulae 56 circumstellar disks 56 novae 56 filamentary structure 56 Arches Cluster 56 fainter objects 56 gamma ray emission 56 GRBs 56 ionised gas 56 electron neutrinos 56 Sagittarius B2 56 planets orbiting distant 56 GALEX 56 Milky Way halo 56 globular cluster 55 nebula 55 constellation Pegasus 55 Zeta Ophiuchi 55 Eagle Nebula 55 CoRoT 9b 55 constellation Leo 55 SN #D 55 star Proxima Centauri 55 gravitational microlensing 55 Proxima Centauri 55 Hawking radiation 55 HM Cancri 55 Comet Elenin 55 Explorer WISE 55 gravitationally lensed 55 binary quasar 55 spacecraft flyby 55 GRB #A 55 Kuiper belt 55 constellation Draco 55 diffuse aurora 55 comet Lulin 55 supergiant stars 55 Convection Rotation 55 Comet Hartley 2 55 Earthlike 55 PKS #-# 55 solar corona 55 VY Canis Majoris 55 rocky extrasolar planet 55 exoplanetary 55 Orion Nebula 55 galactic nucleus 55 Andromeda Galaxy 55 Active Galactic Nuclei 55 Gravitational waves 55 IRAS #-# 55 Kuiper Belt Object 55 proplyds 55 icy comets 55 galactic mergers 55 Kuiper Belt Objects 55 auroral 55 backscattered 55 protostar 55 Wolf Rayet stars 55 UVOT 55 Galaxy Evolution 55 X ray observatory 55 Syrtis Major 55 active galactic nuclei 55 Cepheids 55 Gliese #g 55 comet Hale Bopp 55 Helix nebula 55 Type Ia supernovae 55 interstellar dust clouds 55 Trojan asteroids 55 Cepheid variables 55 Cosmic Microwave Background CMB 55 astrophysicists 55 Antennae Galaxies 55 galactic bulge 55 Trifid 55 planets orbiting 55 Astrophysicists 55 constellation Perseus 55 Cat Paw Nebula 54 galactic cores 54 Beta Pictoris b 54 Lyman alpha 54 gravitational wave 54 COROT 54 WISE infrared 54 ionized particles 54 waxing crescent moon 54 Comet Hale Bopp 54 infrared observatory 54 relativistic particles 54 infall 54 planets orbits 54 axion 54 #gy 54 airglow 54 slender crescent 54 HD# [002] 54 filamentary structures 54 nebulosity 54 Tarantula nebula 54 Earth magnetotail 54 Bok globules 54 ultraviolet wavelengths 54 planet Gliese #g 54 gamma ray burst 54 Mossbauer 54 spiral galaxy M# 54 Gliese #e 54 glowing brightly 54 CoRoT #b 54 Planck telescope 54 Type Ia supernovas 54 gravitational lenses 54 Magellanic Stream 54 constellation Andromeda 54 inhabitable planets 54 globular star 54 supersymmetric particles 54 exoplanets planets 54 Keck Interferometer 54 quasars 54 Alfven waves 54 GLAST telescope 54 periodic dimming 54 emits X rays 54 distant supernovas 54 planets orbiting stars 54 Rydberg atom 54 COROT exo 3b 54 thin crescent 54 neutrino particles 54 Spitzer infrared 54 blazars 54 photons particles 54 PSR J# 54 Mandushev 54 Alpha Particle 54 spacecraft Cassini 54 Infrared Thermal Imaging Spectrometer 54 redshifted 54 volcanic moon Io 54 Gamma ray bursts 54 astronomical objects 54 Mössbauer 54 red supergiants 54 moons Phobos 54 planets comets 54 energetic electrons 54 kaons 54 Infrared Mapping Spectrometer VIMS 54 gamma ray radiation 54 WMAP satellite 54 Veil Nebula 54 Cosmic Microwave Background 54 retrograde orbits 54 gravity warps 54 Keck telescope 54 hypervelocity stars 54 Comet Halley 54 Fomalhaut 54 spectroscopically 54 Rosetta lander 54 Hubble Ultra 54 planetoid 54 radial velocity technique 54 gamma ray flares 54 Jovian moon 54 moon Mimas 54 galactic disk 54 extrasolar planet 54 Phoebe orbits 54 globulars 54 SIRTF 54 Quadrantids 54 dust enshrouded 54 detect gamma rays 54 extrasolar planetary systems 53 comets orbiting 53 fluorescent nanoparticles 53 Wolf Rayet star 53 sunlike stars 53 constellation Cygnus 53 Saturn Enceladus 53 Orionids 53 globular cluster M# 53 Tycho Brahe 53 astronomical telescope 53 Comet Hartley 53 infrared telescope 53 twin STEREO spacecraft 53 elongated orbits 53 planemos 53 observable universe 53 WHIM 53 faint smudge 53 Orionid meteors 53 Peony nebula star 53 meteoritic material 53 diffracted 53 polarimetry 53 Earthlike planet 53 luminous galaxies 53 constellation Lyra 53 extrasolar 53 SN #E 53 globular clusters 53 constellation Ophiuchus 53 Maunder minimum 53 protostars 53 brightest supernova 53 collimated 53 ejecta 53 Nicolaus Copernicus 53 Quadrantid meteor shower 53 quantum particle 53 galactic cosmic rays 53 Saturnian moon Titan 53 accretion disks 53 Perseus constellation 53 X ray binary 53 X ray spectrometer 53 exosolar planets 53 infrared ultraviolet 53 circumstellar 53 spiral galaxy Messier 53 reionization 53 boson 53 Cassini flyby 53 ultraviolet imaging spectrograph 53 star Gliese 53 Triangulum 53 shorter wavelengths 53 afterglows 53 constellation Auriga 53 X ray observatories 53 IBEX spacecraft 53 Saturn outermost 53 Tycho supernova remnant 53 lightwaves 53 weak gravitational lensing 53 X ray binaries 53 astrophysical objects 53 zodiacal dust 53 Shackleton crater 53 radial velocity 53 superluminal 53 Adam Riess 53 diffraction patterns 53 protoplanetary 53 planets circling 53 OGLE TR 53 Gamma ray burst 53 infrared wavelength 53 Gravitational lensing 53 supermassive black hole 53 supernova 53 Nasa spacecraft 53 STEREO spacecraft 53 Magellanic Clouds 53 intracluster 53 magnetic monopoles 53 galactic clusters 53 XTE J# 53 ionized hydrogen 53 submillimetre wavelengths 53 interferometry 53 moons circling 53 spiral galaxies 53 diffract 53 Laser Interferometer Gravitational Wave 53 Telescope BAT 53 Viking landers 53 NASA Cassini orbiter 53 Churyumov Gerasimenko 53 Saturn moons Enceladus 53 VLBA observations 53 galaxy formation 53 planet orbits 53 Mini Thermal Emission 53 Exoplanets 53 constellation Monoceros 53 ionized gas 53 theoretical particle 53 Cosmologists 53 KBOs 53 cosmic phenomena 53 Planetary Transits 53 PSR B# +# 53 Optical Spectroscopic 53 Cerenkov radiation 53 superlens 53 Wilkinson Microwave Probe 53 quasicrystal 53 Carina constellation 53 helium atoms 53 comet 53 Keck Telescope 53 Comet Machholz 52 Cepheid variable 52 Methone 52 Kuiper belt disc 52 Delta Cephei 52 habitable worlds 52 Grillmair 52 Saturnian moon 52 convex lens 52 submillimeter wavelengths 52 brown dwarf 52 Trifid Nebula 52 cosmological theories 52 starburst galaxies 52 Comet 9P/Tempel 1 52 faint galaxies 52 DEM L# 52 comet nucleus 52 Saturn rings 52 Corot 9b 52 Kepler #b 52 Gerard Kuiper 52 MiniBooNE 52 Solar TErrestrial RElations Observatory 52 Bullet Cluster 52 distant galaxies 52 pentacene molecule 52 extrasolar planetary 52 Pleiades cluster 52 cryovolcanism 52 infrared wavelengths 52 millisecond pulsars 52 van Arkel discovery 52 Saturn aurora 52 planets orbiting sun 52 undiscovered particle 52 magnetars 52 photometry 52 CMB radiation 52 interstellar clouds 52 Saturn magnetosphere 52 emits photons 52 Seyfert galaxies 52 Anthony Remijan 52 infrared imager 52 Mini TES 52 planets asteroids 52 hypernova 52 masers 52 Martian crater 52 VLTI 52 tholins 52 cosmic ray 52 circularly polarized light 52 Jenniskens 52 Galactic cosmic rays 52 innermost planet 52 moon Enceladus 52 star Spica 52 inner Oort Cloud 52 galaxies collide 52 celestial phenomena 52 Planck satellite 52 Hipparcos 52 planets circling stars 52 spectral fingerprint 52 Heliospheric Observatory SOHO 52 Eridanus 52 Lagoon Nebula 52 muon neutrinos 52 Jupiter moons 52 asteroidal 52 Voyager spacecraft 52 RHESSI 52 particle smasher 52 Comet #P/Holmes 52 planets Uranus 52 electron neutrino 52 celestial sphere 52 gaseous planets 52 proto cluster 52 photoemission 52 auroral displays 52 Spectrograph 52 #P/Churyumov-Gerasimenko 52 infrared interferometry 52 XMM Newton satellite 52 smallest exoplanets 52 spectroscope 52 rotating neutron stars 52 Comet NEAT 52 Planetary nebulae 52 subsurface ocean 52 Tauri Sb 52 Saturn moon Iapetus 52 exosphere 52 magnetic reconnection 52 constellation Puppis 52 supernovae 52 infrared telescopes 52 Betelgeuse 52 Earth ionosphere 52 Omega Nebula 52 elliptical galaxies 52 auroral emissions 52 GJ#b 52 NASA Wilkinson Microwave 52 icy moon Enceladus 52 habitable planets 52 Franck Marchis 52 Galilean satellites 52 Cassini imaging 52 electrons orbiting 52 Cassiopeia 52 Toutatis 52 La Silla Chile 52 Trapezium 52 ASTRON 52 supernova remnants 52 constellation Hydra 52 cluster NGC 52 zodiac constellations 52 photoelectric effect 52 transiting exoplanet 52 Saturn outermost ring 52 constellation Cepheus 52 thin crescent moon 52 Venusian atmosphere 52 Cherenkov radiation 52 faraway galaxies 52 mu Arae 52 HESS telescopes 52 plutoids 52 Milky Way Galaxy 52 Lulin 52 Optical Gravitational Lensing Experiment 51 Sombrero Galaxy 51 constellation Gemini 51 nebula NGC 51 Goldilocks planet 51 diffraction pattern 51 outermost planets 51 blackbody 51 Ultraviolet Imaging Spectrograph UVIS 51 detect gravitational waves 51 spherical halo 51 ringed planet 51 Cassini Regio 51 Herbig Haro 51 jovian 51 noctilucent clouds 51 sunlike star 51 sized planets orbiting 51 submillimeter galaxies 51 Mimas 51 Kuiper Belt objects 51 coronal heating 51 rotational axis 51 icy moons 51 brown dwarfs 51 IRC +# 51 La Silla observatory 51 protoplanetary disk 51 torus 51 Hale Bopp 51 Subaru telescope 51 synchrotron radiation 51 circumstellar dust 51 inner asteroid belt 51 PSR B# 51 ULP cepheids 51 supernova explosions 51 constellation Vulpecula 51 magnetic monopole 51 God Particle 51 impactor spacecraft 51 waning crescent Moon 51 galaxies 51 Io Europa 51 lunar crescent 51 Gemini constellation 51 planet magnetosphere 51 astronomer Galileo Galilei 51 orbiting Cassini spacecraft 51 astrophysical 51 X ray emitting 51 gravitational interaction 51 LOFAR 51 unaided eye 51 maser 51 cosmic magnifying glass 51 Cygni 51 Pinwheel Galaxy 51 Muchachos Observatory 51 Deep Impact eXtended Investigation 51 Herschel telescope 51 Elenin 51 DISR 51 multiband imaging photometer 51 galactic magnetic 51 HUDF 51 Sagittarius dwarf galaxy 51 Saturnian moons 51 antiparticle 51 baryonic 51 HD #b [001] 51 celestial objects 51 chemical abundances 51 galaxy supermassive black 51 Wolfgang Brandner 51 gamma rays emitted 51 Cassini spacecraft orbiting 51 heliospheric 51 substorm 51 ESO PR 51 J# +# [002] 51 gravitational radiation 51 galactic alignment 51 Multi Object Spectrograph 51 constellation Orion 51 Martian dust 51 fading afterglow 51 interstellar dust 51 hydroxyl molecules 51 Saturn moon Mimas 51 transiting exoplanets 51 UB# [003] 51 neutralinos 51 gravitational interactions 51 comet tail 51 constellation Coma Berenices 51 Krimigis 51 VHE gamma rays 51 astrophysical phenomena 51 RS Oph 51 Planetary Fourier Spectrometer PFS 51 protons collide 51 faintest galaxies 51 photoelectron 51 Pluto Charon 51 Coma Berenices 51 HARPS instrument 51 Astronomers 51 Astrophysical Institute 51 gravitational waves 51 sterile neutrinos 51 Antennae galaxies 51 Uranus Jupiter 51 WM Keck Observatory 51 Epsilon Indi 51 spectroscopic measurements 51 strange quark 51 Mars moon Phobos 51 ESO Very Large Telescope 51 photon fluorescence 51 spectrographic 51 physicist Max Planck 51 spinning neutron 51 Schawinski 51 Andrea Ghez 51 interstellar dust grains 51 Lunar Reconnaissance Orbiter LRO 51 Hubble Space Telescope HST 51 PSR J# +# 51 permanently shadowed craters 51 astronomer Johannes Kepler 51 neutral mass spectrometer 51 Comet Encke 51 supernova remnant Cassiopeia 51 MUFON Case # 51 PASADENA Calif. Astronomers 51 glow brightly 51 Uranus Neptune 51 telescopes astronomers 51 infrared spectrometers 51 Higgs Boson 51 Cancri 51 Eta Carina 51 Nibiru 51 pulsar 51 Ray Spectrometer 51 ecliptic 51 Horsehead Nebula 51 whiz harmlessly 51 Bessel beam 51 optical interferometry 51 brightnesses 51 muon neutrino 51 telescopic observations 50 Doppler shift 50 graviton 50 submillimeter 50 extrasolar planets orbiting 50 moon Iapetus 50 Hot Jupiters 50 Neptune Uranus 50 gamma rays 50 silicate dust 50 BESSY II 50 southern constellation Carina 50 Subaru Telescope 50 glows brightly 50 phosphorescence 50 microshutters 50 Nasa Kepler 50 TGFs 50 Hubble observations 50 aurora 50 HIP #b 50 stellar occultations 50 Aurigae 50 Relations Observatory STEREO 50 dwarf galaxies 50 millimeter wavelengths 50 Higgs singlet 50 Global Surveyor spacecraft 50 Mercury magnetosphere 50 waxing gibbous moon 50 coronal loop 50 muon 50 X ray beams 50 tau neutrinos 50 Deep Impact probe 50 emitting gamma rays 50 called gravitational microlensing 50 heliosheath 50 CoRoT 7b 50 Perseus Cluster 50 spinels 50 lunar orbits 50 nebulae 50 quantum tunneling 50 interplanetary spacecraft 50 Mars orbiting spacecraft 50 metallicity 50 Heike Onnes 50 Pluto moon Charon 50 helium nuclei 50 Carina Nebula 50 Libra constellation Vogt 50 occultation 50 Orcus Patera 50 magma ocean 50 refrozen ice 50 NASA STEREO 50 Bose Einstein condensates 50 cosmic microwave background 50 spacecraft orbiting 50 orbital resonance 50 astronomer 50 nicknamed Xena 50 RX J# 50 nightglow 50 Pavel Kroupa 50 particle acceleration 50 ESA Mars 50 photons emitted 50 orbital angular momentum 50 orbiting gamma ray 50 Mauna Kea Hawaii 50 visible wavelengths 50 Resolution Stereo Camera 50 ionizes 50 Mossbauer spectrometer 50 exo planet 50 chondrules 50 APXS 50 surface plasmons 50 Milky Way 50 NASA Lunar Prospector 50 SINFONI 50 constellation Pisces 50 novas 50 Scorpii 50 Small Magellanic Cloud 50 starquakes 50 lunar crust 50 Jovian moons 50 Niclas Henricson head 50 Camelopardalis 50 Antenna LISA 50 faintly glowing 50 Astronomers Find 50 particle beam 50 Beehive Cluster 50 Doppler shifts 50 ionized gases 50 negative refraction 50 infrared laser beam 50 TrES 50 extrasolar planets 50 Fermi Telescope 50 proto galaxies 50 crystalline silicates 50 thermonuclear reactions 50 Perseid meteor 50 asteroid Vesta 50 THEMIS satellites 50 particle analyzers 50 highly collimated 50 Quaoar 50 Schwarzschild radius 50 Sara Seager 50 Mpc 50 journal Monthly Notices 50 R Coronae Borealis 50 Mars Odyssey spacecraft 50 Aurigid 50 cosmic particles 50 smoggy atmosphere 50 submillimeter wavelength 50 spectral measurements 50 geoneutrinos 50 gamma rays X rays 50 absorption spectra 50 Tycho supernova 50 Pegasi 50 pseudogap 50 Large Magellanic Cloud 50 Ringed Planet 50 Kuiper Belt 50 lunar equator 50 Wide Angle Search 50 retroreflector 50 medieval manuscript 50 weakly interacting 50 journal Astronomy 50 Pierre Simon Laplace 50 spinning neutron stars 50 Thermal Emission Spectrometer 50 Milky Way galaxy 50 interstellar magnetic 50 photometer 50 Gamma ray Large 50 ultraluminous galaxy 50 galaxy clusters 50 Express orbiter 50 polar vortex 50 astronomical observations 50 constellations Cygnus 50 noble gases 50 galactic nuclei 50 Encke gap 50 RRATs 50 pulsars 50 Bill Borucki Kepler 50 Christiaan Huygens 50 Reiner Gamma 50 redshift 50 Gstaad Canton 50 gravitons 50 moons Io 50 Hipparchus 50 Saturn Cassini 50 Weakly Interacting Massive Particles 50 pointings 50 assumed planets circling 50 Cloud Aerosol Lidar 50 Near Infrared Camera 50 Gliese 50 CERN LHC 50 ESA Integral 50 CDMS experiment 50 Wolszczan 50 fireball streaking 50 Jupiter Ganymede 49 coronal holes 49 galaxy