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(Click for frequent words.) 72 coronal mass ejections 69 solar flares 67 coronal mass ejection 65 coronal mass ejections CMEs 64 geomagnetic storms 61 supernovae 61 gamma rays 60 gamma ray emission 60 RS Ophiuchi 59 galactic cosmic rays 59 X ray emission 59 substorms 59 gravitational waves 58 gamma ray bursts 58 magnetic fields 58 supernovas 58 gamma ray bursts GRBs 58 energetic electrons 58 occultations 58 supernova explosions 58 magnetic reconnection 57 solar corona 57 comets 57 Coronal Mass Ejections 57 GRBs 57 Earth magnetosphere 57 Gamma ray bursts 57 galaxy clusters 57 gamma ray flares 57 gravitational radiation 57 quasars 57 astronomers 56 auroral 56 Supernovae 56 substorm 56 cosmic rays 56 magnetars 56 neutron star 56 magnetosphere 56 astrophysical phenomena 56 cosmic ray 56 supernova explosion 56 novae 56 sun corona 56 Solar flares 56 interstellar medium 55 auroras 55 galaxies 55 active galactic nuclei 55 cosmic ray particles 55 Orionids 55 RHESSI 55 asteroids 55 neutron stars 55 AGNs 55 gamma ray burst 55 magnetospheric 55 STEREO spacecraft 55 Gamma rays 55 Earth ionosphere 54 TGFs 54 supermassive black holes 54 muons 54 coronal loops 54 accretion disks 54 meteoroid 54 highly elliptical orbits 54 coronal holes 54 distant supernovae 54 Eta Carinae 54 KBOs 54 blazars 54 meteoroids 54 Coronal Mass Ejection 54 SOHO spacecraft 54 LASCO imagery 54 afterglows 54 planemos 54 starburst galaxies 54 geomagnetic activity 54 corona 54 particle acceleration 54 relativistic particles 54 magnetar 54 quasar 53 magnetic flux 53 photosphere 53 Type Ia supernovae 53 comet 53 Gravitational waves 53 Supernova #A 53 exoplanetary 53 ionized gas 53 aurorae 53 planetesimals 53 protons 53 Cepheids 53 planetary nebulae 53 SN #A 53 nucleosynthesis 53 pulsars 53 ultraviolet wavelengths 53 starquakes 53 GRB #B 53 X ray pulses 53 proton collisions 53 protostar 53 millisecond pulsars 53 gravitational lensing 53 pulsar 53 STEREO 53 Saturn rings 53 distant galaxies 53 RS Oph 53 subatomic particles 52 sunspots 52 ejecta 52 Higgs bosons 52 orbiting gamma ray 52 HM Cancri 52 Upsilon Andromedae 52 elliptical orbits 52 merging galaxies 52 blazar 52 asteroids comets 52 Crab Nebula 52 lunar perigee 52 accretion disk 52 millisecond pulsar 52 ray Space Telescope 52 moonlets 52 meteors 52 gravitational lenses 52 circular orbits 52 circumstellar 52 exoplanets orbiting 52 X ray observatories 52 exo planets 52 extrasolar planetary systems 52 laser pulses 52 spiral galaxies 52 Alfven waves 52 Magellanic Clouds 52 detect gravitational waves 52 gamma ray flashes 52 luminous galaxies 52 galactic mergers 52 X ray wavelengths 52 Coronal Mass Ejections CMEs 52 GRB# 52 planets 52 GALEX 52 gravitational interactions 52 X ray telescopes 52 meteoroid impacts 52 impactors 52 explosive eruptions 52 Galactic cosmic rays 51 outer corona 51 intrinsic brightness 51 Orionid 51 active galactic nucleus 51 distant galaxy clusters 51 outer planets 51 ionosphere 51 spicules 51 elongated orbits 51 proton proton collisions 51 geoeffective 51 comets asteroids 51 Type 1a supernovae 51 Comet 9P/Tempel 1 51 Oort Cloud 51 astrophysicists 51 Geminga 51 SN #gy 51 sunlike stars 51 geomagnetic substorms 51 VIRTIS 51 supermassive black hole 51 Heliospheric Observatory SOHO 51 supersymmetric particles 51 pions 51 luminosities 51 Orion Nebula 51 interstellar clouds 51 ionised gas 51 HII regions 51 starburst galaxy 51 Type Ia supernovas 51 auroral activity 51 gravitational wave 51 dwarf galaxies 51 Saturn magnetosphere 51 Gamma ray 51 planets orbits 51 planets moons 51 telescopes 51 particle beam 51 comet nucleus 51 prominences 51 helium ions 51 magnetotail 51 Earthlike planets 51 high redshift galaxies 51 astrophysical 51 photons emitted 51 airbursts 51 solar flares coronal 51 microlensing events 51 astrophysical objects 51 Quadrantid meteor shower 51 sterile neutrino 51 type Ia supernovae 51 gravitational microlensing 50 galactic disk 50 supernova remnants 50 gamma ray 50 extrasolar planets 50 galaxy formation 50 XMM Newton 50 cosmic gamma rays 50 infalling 50 RRATs 50 WIMPs 50 VHE gamma rays 50 transiting exoplanets 50 protostars 50 hadrons 50 Coronal mass 50 neutrinos 50 coronal hole 50 interstellar dust 50 Cosmic rays 50 Sunspots 50 meteor showers 50 spherically symmetric 50 dust devils 50 terrestrial planets 50 red supergiant 50 Epsilon Eridani 50 moon Io 50 Saturnian 50 Leonid meteors 50 distant supernovas 50 CoRoT satellite 50 interstellar space 50 gamma ray detectors 50 auroral displays 50 planetary transits 50 stellar occultations 50 Type Ia supernova 50 Ulysses spacecraft 50 orbits 50 NASA STEREO 50 planet magnetosphere 50 antineutrinos 50 surface plasmons 50 energetic gamma rays 50 retrograde orbit 50 radial velocity 50 distant quasars 50 dwarf galaxy 50 galactic cosmic ray 50 planets orbiting 50 relativistic jets 50 protoplanets 50 Comet Hartley 50 supernova 50 nebulae 50 Eta Aquarids 50 brown dwarfs 50 Pluto Charon 50 gravitational interaction 50 Active Galactic Nuclei 50 comet Tempel Tuttle 50 Kuiper Belt Objects 50 celestial bodies 50 rotating neutron stars 50 cosmic microwave radiation 50 Solar System 50 positrons 50 ecliptic 50 distant galaxy 50 HD#b 50 orbiting planets 49 Late Heavy Bombardment 49 Leonids 49 optical telescopes 49 infrared telescopes 49 Cosmologists 49 impactor 49 muon 49 microquasar 49 particle beams 49 numerical simulations 49 LHC experiments 49 stellar nurseries 49 polarimetry 49 COROT 49 red supergiants 49 Astronomers 49 Fermi telescope 49 orbiting Chandra 49 electron beams 49 spacecraft flyby 49 energetic cosmic rays 49 Cherenkov radiation 49 Milky Way Galaxy 49 sodium atoms 49 meteor shower 49 Galilean moons 49 earthlike planets 49 ionospheric 49 femtosecond pulses 49 Hanny Voorwerp 49 gravitationally 49 gaseous planets 49 X ray photons 49 atmospheric disturbances 49 masers 49 Perseid meteors 49 X ray Observatory 49 Alfvén waves 49 protons collide 49 protoplanetary disk 49 convective 49 particles 49 retrograde orbits 49 volcanic plumes 49 Virgo Cluster 49 superluminal 49 Beta Pictoris b 49 occultation 49 geomagnetic storm 49 SN #D 49 submillimeter 49 Geminid 49 RXTE 49 submillimeter galaxies 49 Aurigid 49 gravitational perturbations 49 Neutron stars 49 Gaensler 49 particles WIMPs 49 fainter objects 49 Higgs singlet 49 Andromeda Galaxy 49 accreting 49 elliptical galaxies 49 ionized particles 49 neutralinos 49 Geomagnetic storms 49 Crab Pulsar 49 eruptions 49 cometary debris 49 oscillations 49 Comet Hartley 2 49 nebular 49 X ray binary 49 chondrules 49 cosmic particles 49 GRB # 48 BECs 48 ULIRGs 48 particle accelerators 48 coronal heating 48 galactic clusters 48 MeV 48 BP Psc 48 protoplanetary disks 48 infrared spectrometers 48 planets orbiting distant 48 planets circling 48 helium atoms 48 Type Ia 48 Comet Halley 48 interstellar 48 Venusian atmosphere 48 Enceladus 48 phonons 48 spinning neutron stars 48 galaxy 48 THz radiation 48 neutron beams 48 ultraviolet radiation emitted 48 distant quasar 48 V# Mon 48 attosecond 48 gravitons 48 Saturn auroras 48 solar nebula 48 coronagraph 48 Nasa spacecraft 48 Lyrids 48 NASA Wilkinson Microwave 48 eclipsing binary 48 CALIPSO 48 vortices 48 Taurids 48 X ray emitting 48 Magnetospheric 48 gamma rays emitted 48 Saturnian moon 48 extragalactic 48 cosmologists 48 blue supergiant 48 APXS 48 astronomical objects 48 aurora 48 planetary nebula 48 filamentary structure 48 cosmological distances 48 galactic cores 48 orbiting 48 galaxy cluster 48 extrasolar 48 Astrophysical 48 supernovae explosions 48 emit X rays 48 Triangulum 48 icy comets 48 nuclei 48 relativistic speeds 48 exosphere 48 quark gluon plasma 48 solar minima 48 WASP #b 48 Doppler shift 48 cosmic microwave background 48 stellar seismology 48 elliptical galaxy 48 carbonate minerals 48 electromagnetic flux 48 emits X rays 48 VY Canis Majoris 48 Bose Einstein Condensate 48 Quadrantids 48 noctilucent clouds 48 gamma ray photons 48 Cassini Huygens 48 interstellar dust clouds 48 Vourlidas 48 Andromeda galaxy 48 planetary nebulas 48 GeV 48 jovian 48 gamma ray observatory 48 GCRs 48 X ray spectroscopy 48 Gal Yam 48 meteoritic material 48 magnetic monopoles 48 Jupiter moon Io 48 spectrographs 48 ESO telescopes 48 alien civilizations 48 galaxies collide 47 Comet #P/Holmes 47 infall 47 Halley comet 47 binary asteroid 47 Geminid shower 47 NASA Chandra 47 particle colliders 47 Cassini ion 47 Solar Dynamics 47 velocity vector 47 gravitational wobbles 47 moonquakes 47 galaxy M# [002] 47 Henize #-# 47 detect gamma rays 47 Lyman alpha 47 Kuiper belt objects 47 globulars 47 antimatter particles 47 dynamical 47 Gamma ray bursts GRBs 47 Area Telescope LAT 47 atomic particles 47 ion collisions 47 Solar TErrestrial RElations Observatory 47 electrons protons 47 galactic magnetic 47 infrared ultraviolet 47 Hubble observations 47 celestial objects 47 sized planets orbiting 47 gamma ray emitting 47 Carina constellation 47 helium nuclei 47 Alex Filippenko 47 Oort cloud 47 lensing galaxy 47 Jupiter Uranus 47 VLTI 47 AB Aurigae 47 lightwaves 47 Microlensing 47 J# +# [002] 47 Earth asteroids 47 ultraviolet photons 47 Planck satellite 47 X ray beams 47 hypernova 47 ultrashort pulses 47 Photons 47 Jupiter magnetosphere 47 hydrogen nuclei 47 magnetospheres 47 gravitational lens 47 earthshine 47 electrons positrons 47 OGLE TR #b 47 asteroid 47 ESO VLT 47 HD #b [002] 47 diffract 47 convective storms 47 supermassive stars 47 astrometry 47 Oscillations 47 Krimigis 47 Magnetars 47 Nibiru 47 galaxy M# [001] 47 Interstellar Boundary Explorer 47 planets comets 47 Meteor showers 47 Milky Way halo 47 gravitational tides 47 Churyumov Gerasimenko 47 microwave photons 47 Wolf Rayet stars 47 planetary alignments 47 supernova remnant 47 Richard Mushotzky 47 colliding galaxies 47 plasmasphere 47 Laser Interferometer Gravitational Wave 47 neutrino particles 47 ionized atoms 47 quantum mechanically 47 Mössbauer 47 Trojan asteroids 47 spectroscopic measurements 47 supergiant star 47 HD# [002] 47 cryovolcanism 47 occulted 47 Relations Observatory STEREO 47 neutrino 47 gravitationally bound 47 Muons 47 solar prominences 47 Solar Dynamics Observatory 47 mesosphere 47 UCO Lick 47 solitons 47 Cassini 47 inhomogeneous 47 IBEX spacecraft 47 ionize 47 antiprotons 47 Helix Nebula 47 diffuse aurora 47 keV 47 proton 47 Milky Way galaxy 47 sunspot 47 particle physics experiments 47 Neil Gehrels 47 ion flux 47 Wilkinson Microwave Anisotropy Probe 46 hydrosphere 46 Hale Bopp 46 binary quasar 46 constellation Ursa Major 46 baryon 46 polar vortex 46 Observatory SDO 46 cometary dust 46 WHIM 46 asteroidal 46 lava flows 46 spectroscopic 46 ESA XMM Newton 46 optical wavelengths 46 ringed planet 46 exoplanets 46 EPOCh 46 spectral measurements 46 Cosmic Microwave Background 46 comets orbiting 46 Sibeck 46 Galaxy Evolution 46 XMM Newton observations 46 galaxy NGC 46 galactic collisions 46 particles emitted 46 Quadrantid 46 stellar occultation 46 atomic nuclei 46 galaxy redshift 46 Fomalhaut b 46 supercell storms 46 ionise 46 Particle acceleration 46 Saturn aurora 46 synchrotron x ray 46 YORP effect 46 spectroscopic analysis 46 eclipsing binaries 46 circumstellar disk 46 constellation Centaurus 46 unaided eye 46 electron neutrinos 46 spectroscopic observations 46 excitons 46 infrared interferometry 46 Astrophysicists 46 Geminid meteors 46 Jonathan Lunine 46 cosmic ray collisions 46 RHIC 46 GRB 46 habitable planets 46 Pulsars 46 pulsations 46 hypervelocity stars 46 astronomical phenomena 46 Wolf Rayet star 46 solar radii 46 Exoplanet 46 AGN 46 meteorite impacts 46 photochemical reactions 46 Alycia Weinberger 46 comet orbit 46 Seyfert galaxies 46 type Ia supernova 46 planetary embryos 46 supergiant stars 46 Swift Tuttle 46 collisional 46 Comet Lulin 46 Comet Holmes 46 Neil Gehrels Swift 46 NASA Fermi Gamma 46 gamma ray telescopes 46 tidal tails 46 rocky planets 46 Comet NEAT 46 spherical halo 46 planet orbiting 46 Solar Orbiter 46 sunspot cluster 46 geoneutrinos 46 galactic 46 asteroid collisions 46 attosecond pulses 46 faint galaxies 46 phyllosilicates 46 polaritons 46 polar orbiting satellites 46 Kepler 9c 46 Gamma ray burst 46 slender crescent 46 plasmons 46 geomagnetic field 46 Antennae Galaxies 46 Ultraviolet Imaging Spectrograph UVIS 46 thermonuclear reactions 46 periodicities 46 photons 46 UVIS 46 Type 1a supernova 46 CMB radiation 46 Rydberg atom 46 sunspot cycle 46 Infrared Pathfinder Satellite 46 femtosecond timescale 46 globular clusters 46 STEREO mission 46 supermassive 46 pyroclastic flows 46 orbital 46 Relativistic 46 NASA Far Ultraviolet 46 Saturn moons 46 aerosol particles 46 Eta Aquarid meteor shower 46 Comet Hale Bopp 46 Adaptive optics 46 Jenniskens 46 SN#A 46 KH #D 46 transiting planets 46 neutrons 46 icy moons 46 sonoluminescence 46 planetary orbits 46 particle astrophysics 46 olivine mineral 46 galactic halo 46 Werthimer 46 supervolcanoes 46 undiscovered particle 46 planetary atmospheres 46 comet tail 46 muon neutrinos 46 runaway thermonuclear 46 NEAs 46 Supernovas 46 colliders 46 heliospheric 46 X ray spectra 46 globular cluster 46 Kailash Sahu 46 neutral mass spectrometer 46 cosmic ray flux 46 coronal 46 cometary 46 observable universe 46 Cosmic Background Explorer COBE 45 Anisotropy Probe WMAP 45 constellation Aquarius 45 X ray binaries 45 Wolszczan 45 Kuiper belt 45 ARPES 45 maser emission 45 nucleons 45 spacecraft 45 Perseids Meteor Shower 45 antiparticle 45 nebulas 45 Lunar Reconnaissance Orbiter LRO 45 proto galaxies 45 KIPAC 45 planet Uranus 45 CoRoT 45 geomagnetic 45 Comet Tempel Tuttle 45 Comet Tempel 1 45 twin STEREO spacecraft 45 B mesons 45 Fermi LAT 45 Comet #P/Churyumov-Gerasimenko 45 Tempel 1 45 Keck Interferometer 45 heliopause 45 Jovian moons 45 spectroscopy 45 ESA Integral 45 electrons 45 infrared wavelengths 45 nanomagnets 45 NASA Cassini 45 shorter wavelengths 45 THEMIS satellites 45 cosmic radiation 45 Dynamics Observatory 45 infalling gas 45 Deep Impact craft 45 infrared radiation 45 N. Rathnasree 45 proplyds 45 gamma ray energies 45 gaseous planet 45 Muchachos Observatory 45 dirty snowballs 45 Delta Aquarids 45 comet McNaught 45 Astrophysics MOA 45 nebula 45 Kepler Mission 45 SINFONI 45 Uranus 45 laser pulse 45 Amateur astronomers 45 cosmic ray protons 45 Galileo spacecraft 45 #P/Holmes 45 Comet #P 45 microlensing 45 hydrogen atoms 45 telescope 45 laser beams 45 reionization 45 gravitational slingshot 45 W bosons 45 C1XS 45 NuSTAR 45 Bok globules 45 amateur skywatchers 45 axions 45 interstellar particles 45 Trapezium 45 RAINEX 45 atoms 45 redshifted 45 radiative 45 volcanic eruptions 45 proto planetary disk 45 inhabitable planets 45 planets asteroids 45 particle collisions 45 celestial object 45 Small Magellanic Cloud 45 physicists 45 MESSENGER 45 Substorms 45 Explorer WISE 45 geomagnetic disturbances 45 Orionid meteors 45 meteor 45 Avishay Gal Yam 45 fading afterglow 45 constellation Cassiopeia 45 NASA Voyager spacecraft 45 sunspot activity 45 backscattered 45 NASA Gamma ray 45 atmospheric aerosols 45 Helioseismic 45 moon Enceladus 45 cosmic collisions 45 Interferometer 45 orbiting telescopes 45 SWIFT J#.# 45 Rossby waves 45 Perseids 45 Saturn Cassini 45 telescopic observations 45 spatially resolved 45 interferometers 45 Comet Machholz 45 sunlike star 45 Kuiper Belt objects 45 transiting exoplanet 45 eccentric orbits 45 constellation Hercules 45 lunar orbits 45 comets meteors 45 heliosphere 45 gravity warps 45 GQ Lupi 45 protoplanet 45 antiparticles 45 cosmological theories 45 GLAST 45 Type Ic supernova 45 ENAs 45 gravitational 45 moon Charon 45 Anisotropy Probe 45 interstellar dust grains 45 Galilean satellites 45 O OREOS 45 asteroseismology 45 meteor impacts 45 observatories 45 Tod Strohmayer 45 Keck telescope 45 planetary 45 spacetime 45 cosmic 45 Infrared Thermal Imaging Spectrometer 45 trans Neptunian objects 45 MG J# +# 45 Sagittarius B2 45 Earth asteroids NEAs 45 chemical abundances 45 Maunder minimum 45 tornadic thunderstorms 45 Neutrons 45 SMBHs 45 astronomy 45 moons Europa 45 Voorwerp 45 alpha particles 45 weakly interacting 45 polar stratospheric 45 Bullet Cluster 45 terahertz frequency 45 Gravitational lensing 45 Fermi Telescope 45 Martian dust 45 Dust devils 45 Gravitational 45 proton beams 45 Milky Way 45 volcanism 45 Fermi Gamma ray 45 Kuiper Belt 45 Jupiter moons 44 neutron radiation 44 millimeter wavelengths 44 novas 44 Meteor Showers 44 planets atmospheres 44 coronal magnetic field 44 supercomputer simulations 44 synchrotron emission 44 Saturn moon Enceladus 44 X ray Telescope XRT 44 AAVSO 44 magnetic substorms 44 moons 44 Cassini flyby 44 sterile neutrinos 44 particle detectors 44 proton decay 44 superfluids 44 coronal loop 44 gravitational redshift 44 hot Jupiters 44 interferometry 44 SN #E 44 extraterrestrial UFOs 44 bosonic 44 chromosphere 44 faraway galaxies 44 noctilucent 44 x ray beams 44 orbited Jupiter 44 Spitzer infrared spectrograph 44 circumstellar disks 44 meteorites 44 Shoemaker Levy 44 tau neutrinos 44 planet orbits 44 MARSIS radar 44 X rays gamma rays 44 Nasa Kepler 44 type 1a supernovae 44 PSR J# +# 44 GJ #b [002] 44 atom smashers 44 LOFAR 44 visible wavelengths 44 deuterium atoms 44 XTE J# 44 Doppler shifts 44 Thermal Emission Spectrometer 44 Science Popularisation Association 44 periodic dimming 44 optical spectra 44 Type Ic supernovae 44 binary asteroids 44 cosmic strings 44 CMB photons 44 Mars landers 44 NASA Cassini spacecraft 44 hematite mineral 44 astrobiological 44 tiniest particles 44 perturbations 44 Leonid meteor shower 44 SNe 44 supercell thunderstorms 44 interplanetary spacecraft 44 photons particles 44 observable phenomena 44 Jupiter Saturn 44 comet dust 44 ecliptic plane 44 Tempel Tuttle 44 ionised 44 electromagnetic radiation 44 Spectrograph 44 Leonid meteor showers 44 weak gravitational lensing 44 Digitized Sky Survey 44 ionized gases 44 orbiting spacecraft 44 Voyager spacecraft 44 sulfate aerosols 44 planetary missions 44 Neutrinos 44 Telescope BAT 44 Kepler spacecraft 44 Cosmic Microwave Background CMB 44 cosmological parameters 44 submillimeter wavelengths 44 Orionid meteor shower 44 astrometric 44 interstellar boundary 44 gravitational pulls 44 Magnetic Imager HMI 44 micro meteorites 44 planets orbiting sun 44 superlenses 44 Gamma Virginids 44 exosolar planets 44 photoionization 44 Astrological lore