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(Click for frequent words.) 68 Earth magnetosphere 67 galactic cosmic rays 66 ionized particles 66 Earth ionosphere 66 Gravitational waves 66 circumstellar 66 magnetosphere 65 magnetospheric 65 moon Io 65 Martian dust 65 icy comets 64 starquakes 64 Cosmic Microwave Background 63 Ulysses spacecraft 63 airglow 63 filamentary structure 63 Saturn magnetosphere 63 solar corona 63 exosphere 63 gravitational tides 63 substorm 63 gravitational interaction 63 cosmic ray particles 62 jovian 62 Venusian atmosphere 62 astrophysical objects 62 volcanic plumes 62 magnetotail 62 interstellar particles 62 coronal mass ejections CMEs 62 comet nucleus 62 subatomic scale 62 Galactic cosmic rays 62 polar vortex 62 extrasolar 62 infall 61 circumstellar disks 61 coronal holes 61 hydrosphere 61 magnetic substorms 61 moon Mimas 61 planets orbits 61 Solar flares 61 interstellar dust grains 61 sodium atoms 61 atmospheric aerosols 61 IBEX spacecraft 61 accretion disks 61 Mercury magnetosphere 61 rotational axis 61 magnetic reconnection 61 cosmic ray flux 61 exoplanetary 61 gaseous planet 61 plasmasphere 61 protoplanetary 61 cometary dust 61 coronal loops 60 infalling 60 CMB radiation 60 Comet Encke 60 galactic disk 60 gamma rays emitted 60 oceanic circulation 60 particle acceleration 60 heliospheric 60 Saturnian moon Titan 60 ionised gas 60 blue supergiant 60 meteoritic material 60 comets asteroids 60 GJ#b 60 VY Canis Majoris 60 asteroidal 60 dynamical evolution 60 vorticity 60 interstellar clouds 60 relativistic particles 60 cosmic phenomena 60 galactic cosmic ray 60 Saturnian moon 59 X ray pulses 59 galactic bulge 59 collisional 59 Jupiter magnetosphere 59 interstellar cloud 59 Upsilon Andromedae 59 cosmological distances 59 spectroscopic analysis 59 Cassini flyby 59 antimatter particles 59 ultraviolet radiation emitted 59 Comet 9P/Tempel 1 59 atmospheric convection 59 circumstellar disk 59 moon Enceladus 59 distant supernovas 59 Fomalhaut b 59 comet Tempel Tuttle 59 gravitational tugs 59 Corot 9b 59 silicon monoxide 59 micro meteorites 59 lunar crust 59 galactic clusters 59 helium atoms 59 CMB photons 59 heliosphere 59 coronal hole 59 planetary orbits 59 X ray binaries 59 cosmological parameters 59 Cherenkov radiation 59 subsurface ocean 59 Kuiper belt objects 59 chromosphere 59 Fermi telescope 58 martian atmosphere 58 periodic dimming 58 ionized gases 58 comets orbiting 58 Type Ia supernovas 58 Jupiter moon Io 58 geomagnetic substorms 58 magnetic monopoles 58 cometary debris 58 planetary atmospheres 58 cosmic microwave radiation 58 electron ion 58 Doppler shift 58 microscopic bubbles 58 emit X rays 58 energetic electrons 58 electromagnetic flux 58 nebular 58 hydrogen nuclei 58 ejecta 58 gluon 58 Kuiper Belt Objects 58 photosphere 58 interplanetary spacecraft 58 lensing galaxy 58 deep convective clouds 58 convection currents 58 protoplanets 58 icy moons 58 dynamical processes 58 ionosphere 58 CoRoT 9b 58 sulfate aerosols 58 gravitational radiation 58 Planck satellite 58 gravitational pulls 58 Great Conveyor Belt 58 gamma ray observatory 58 auroral displays 58 detect gravitational waves 58 planetesimals 58 gamma ray flashes 58 infrared spectrometers 58 supernova explosions 58 cosmic rays 57 merging galaxies 57 X ray emission 57 Oort Cloud 57 Martian dunes 57 diffuse aurora 57 type Ia supernovae 57 proto planetary disk 57 atmospheric circulations 57 Geminga 57 TrES 4 57 protoplanetary disk 57 magnetic dynamo 57 electrons positrons 57 magnetic fields 57 Corot 7b 57 Evolution Explorer 57 lowermost mantle 57 spatially resolved 57 spectral fingerprint 57 impactors 57 oppositely directed 57 vortices 57 moonquakes 57 Higgs singlet 57 Comet Hartley 2 57 sulphate aerosols 57 Huygens spacecraft 57 GJ #b [002] 57 constellation Eridanus 57 galactic magnetic 57 interstellar medium 57 atmospheric phenomena 57 neutralinos 57 protoplanet 57 Rossby waves 57 Saturn moon Mimas 57 Red Rectangle 57 coronal loop 57 impactor spacecraft 57 Arches Cluster 57 Earth radii 57 cosmic ray 57 infrared telescopes 57 accretion disk 57 radar interferometry 57 upper troposphere 57 solar nebula 57 baryonic 57 auroral 57 electron orbits 57 photochemical reactions 57 aerosol particles 57 SOHO spacecraft 57 Mercury exosphere 57 mineralogical composition 57 geyser plumes 57 cometary nucleus 57 helium nuclei 57 thermal gradients 57 Oort cloud 57 Comet Tempel Tuttle 57 elongated orbits 57 STEREO spacecraft 57 Alfven waves 57 equatorial latitudes 57 glacial interglacial 56 Earth biosphere 56 gamma ray radiation 56 crystalline silicates 56 binary asteroid 56 planets atmospheres 56 tholins 56 outer corona 56 Churyumov Gerasimenko 56 Gamma ray burst 56 YORP effect 56 electron neutrinos 56 outer heliosphere 56 olivine mineral 56 Martian craters 56 radiative cooling 56 meteor impacts 56 backscattered 56 Yarkovsky effect 56 X rays gamma rays 56 Mercury flyby 56 solar prominences 56 X ray wavelengths 56 Milankovitch cycles 56 Jovian moons 56 HM Cancri 56 auroral activity 56 matter antimatter asymmetry 56 topological defects 56 meteoroid 56 supergiant star 56 occultations 56 ionized gas 56 electrons protons 56 sulfur isotope 56 tropopause 56 cryovolcanism 56 Earth orbiting satellites 56 tropospheric 56 advection 56 Saturn rings 56 exhaust plume 56 axions 56 spacecraft flyby 56 photometer 56 ejecta blanket 56 proplyds 56 Planck telescope 56 geomagnetic storms 56 proton antiproton 56 distant supernovae 56 meteoroids 56 Nasa spacecraft 56 magma molten rock 56 permanently shadowed craters 56 magnetopause 56 iron pnictides 56 supernova explosion 56 Saturnian system 56 pions 56 interstellar dust clouds 56 convective 56 moons orbiting 56 RS Ophiuchi 56 albedo reflectivity 56 cosmic cannibal 56 wavefronts 56 radiative 56 Huygens descent 56 magnetic flux 56 Tharsis Rise 56 mesosphere 56 chlorophyll molecules 56 galactic cores 56 particle colliders 56 Doppler shifts 56 Comet Hartley 56 quantum tunneling 56 nucleon 56 temperature gradients 56 planetary Transits 56 moon Phobos 56 blazar 56 BP Psc 56 neutrino detectors 56 Dust devils 56 Saturnian 56 gravity warps 56 HD#b 56 NEAs 56 Higgs bosons 56 magnetic dipole 56 Saturn outermost 56 electron density 56 neutrino particles 56 Martian crater 56 HiRISE image 56 comet nuclei 56 outer planets 56 ray Space Telescope 56 cirrus cloud 56 planetary nebulas 56 X ray emitting 56 X ray observatory 56 Alycia Weinberger 56 active galactic nucleus 56 mesocyclone 56 asteroid impacts 56 Earth magnetotail 56 Galileo spacecraft 56 UV photons 56 Neutron stars 56 X ray telescopes 56 Saturn moon Enceladus 56 Cosmic rays 56 X ray afterglow 56 longwave radiation 56 volcanic moon Io 55 APXS 55 carbonate minerals 55 graphite whiskers 55 Solar Dynamics Observatory 55 cosmic ray intensity 55 comet orbit 55 TGFs 55 magnetic vortices 55 stellar seismology 55 GJ #b [001] 55 ionized atoms 55 Coronal Mass Ejections 55 sunlike stars 55 gravitational waves 55 geomagnetic field 55 spectroscopic measurements 55 hypervelocity 55 galaxy clusters 55 moon Titan 55 exo planets 55 piezoelectric properties 55 superluminal 55 heliosheath 55 smoggy atmosphere 55 antineutrinos 55 ionized molecules 55 basaltic lava 55 geosphere 55 solar flares 55 reionization 55 Jupiter Uranus 55 electromagnetic signals 55 galaxies collide 55 celestial phenomena 55 Distant galaxies 55 Svedhem 55 electron flux 55 metallicity 55 comet McNaught 55 Martian terrain 55 Hubble orbits 55 meridional flow 55 tidal bulge 55 Comet Halley 55 micrometeoroids 55 yardangs 55 particle detectors 55 Heliospheric Observatory SOHO 55 Upsilon Andromedae b 55 planets orbiting stars 55 lithium atoms 55 Jovian moon 55 supersymmetric particles 55 CoRoT satellite 55 geomagnetic disturbances 55 cosmic gamma rays 55 astrophysical phenomena 55 cosmic radiation 55 atomic lattice 55 ultracold molecules 55 Saturn auroras 55 ion flux 55 exoplanets planets 55 innermost planet 55 synchrotron emission 55 planets comets 55 highly elliptical orbits 55 RXTE 55 Earth rotational axis 55 moons Europa 55 lunar perigee 55 weakly interacting 55 Sibeck 55 Moisture laden 55 protostars 55 fissure eruption 55 coronal heating 55 volcanic magma 55 AGNs 55 absorbs photons 55 Saturn Cassini 55 nucleosynthesis 55 aurorae 55 cometary material 55 RRATs 55 potassium atoms 55 carbonate globules 55 moonlets 55 Galilean moons 55 oceanic currents 55 Mars Odyssey spacecraft 55 Magellanic Stream 55 coronal magnetic field 55 sterile neutrinos 55 tidally 55 Cassini spacecraft orbiting 55 gamma ray emission 55 evanescent waves 55 Gamma rays 55 relativistic speeds 55 WASP #b 55 volcanic aerosols 55 interstellar magnetic 55 magnetized plasma 54 galaxy M# [001] 54 ESA XMM Newton 54 interstellar dust 54 galactic mergers 54 hydroxyl molecules 54 retrograde orbit 54 satellites orbiting Earth 54 spacetime 54 meteorite impacts 54 sterile neutrino 54 faraway galaxies 54 Earthlike 54 magnetic polarity 54 midlatitudes 54 extraterrestrial UFOs 54 Wolf Rayet stars 54 galaxy M# [002] 54 microgravity environment 54 ringed planet 54 substorms 54 runaway thermonuclear 54 comet 54 Neptune Uranus 54 cometary impacts 54 active volcanism 54 thermally induced 54 Cancri e 54 ultracold atoms 54 airbursts 54 planets moons 54 Saturn equinox 54 Beta Pictoris b 54 inner Oort Cloud 54 baryon 54 GRB #B 54 hexagonal mirrors 54 Io volcanoes 54 chondrules 54 Jupiter Ganymede 54 planetary magnetospheres 54 planetary 54 fainter objects 54 polarimetry 54 Virgo Cluster 54 intrinsic brightness 54 HIP #b 54 Surface Composition Spectrometer 54 supermassive stars 54 Anthony Remijan 54 Mandushev 54 magnetospheres 54 superfluids 54 rotational velocity 54 meteoroid impacts 54 Diviner instrument 54 ocean eddies 54 spicules 54 MARSIS radar 54 basaltic rocks 54 planemos 54 spacecraft thrusters 54 Type Ia supernova 54 polar craters 54 protons collide 54 solitons 54 Saturn Enceladus 54 thermally activated 54 lunar equator 54 dipole moment 54 ionise 54 explosive volcanism 54 OGLE TR #b 54 aboard ESA Envisat 54 NASA Cassini spacecraft 54 sunspot cluster 54 mantle plumes 54 mantle convection 54 submillimeter 54 SMBH 54 coronal mass ejection 54 extrasolar planetary systems 54 Huygens lander 54 coronal mass ejections 54 elliptical galaxy 54 rubidium vapor 54 magnetic monopole 54 Supernova #A 54 ionospheric 54 volcanoes spewing 54 ENAs 54 magma ocean 54 Cabeus 54 dynamical 54 ultracold gas 54 energetic cosmic rays 54 astrophysical 54 THEMIS spacecraft 54 mineral olivine 54 thruster firings 54 MG J# +# 54 Samuel Oschin Telescope 54 Bug Nebula 54 nightside 54 WMAP satellite 54 Magnetic reconnection 54 sunlike star 54 interstellar boundary 54 Rydberg atom 54 filamentary structures 54 smallest exoplanet 54 auroral emissions 54 specular reflection 54 planet Nibiru 54 proton proton collisions 54 galactic cosmic radiation 54 rotating neutron stars 54 planetesimal 54 post perovskite 54 water vapor 54 exoplanet orbiting 54 Hellas Basin 54 heliopause 54 Descent Imager Spectral Radiometer 53 helium ions 53 nebulosity 53 radiative transfer 53 crustal 53 femtosecond timescale 53 downwelling 53 antiferromagnets 53 exoplanetary systems 53 Cosmic ray 53 V# Mon 53 orbital resonance 53 neutrino mass 53 orbiting gamma ray 53 galactic halo 53 Sagittarius dwarf galaxy 53 ion collisions 53 moon gravitational pull 53 ionize 53 exoplanets orbiting 53 AB Aurigae 53 filamentary 53 hydrological cycle 53 spherical halo 53 active galactic nuclei 53 hurricane eyewall 53 VHE gamma rays 53 axial tilt 53 planetary embryos 53 celestial sphere 53 Yinghuo 1 53 deuterium atoms 53 gravitational slingshot 53 Orionid 53 #P/Churyumov-Gerasimenko 53 SN#A 53 cosmic collisions 53 outlet glaciers 53 Carina constellation 53 HiRISE images 53 Comet Churyumov Gerasimenko 53 Type 1a supernova 53 MESSENGER spacecraft 53 polariton 53 convective heat 53 solar neutrinos 53 P/# A2 53 supercomputer simulations 53 Titan smoggy 53 icy moon Enceladus 53 comet dust 53 cosmic magnifying glass 53 crustal deformation 53 Herschel Crater 53 cyclonic circulations 53 martian soil 53 gravitational lens 53 Apophis asteroid 53 Quadrantid meteor shower 53 TNOs 53 Jovian atmosphere 53 emits X rays 53 protostar 53 Saturn aurora 53 oxygen ions 53 Itokawa asteroid 53 sulfate aerosol 53 geoneutrinos 53 Saharan dust 53 trans Neptunian objects 53 proto galaxies 53 microphysical 53 helium atom 53 Martian permafrost 53 primordial ingredients 53 Gamma ray 53 Electromagnetic waves 53 muon neutrino 53 sundog 53 cometary particles 53 micrometeoroid impacts 53 stellar occultation 53 plankton blooms 53 spectroscopically 53 gravitational lenses 53 cometary 53 interferometric synthetic aperture radar 53 prominences 53 NASA QuikScat satellite 53 Tycho supernova remnant 53 atmospheric methane 53 duststorms 53 remote sensing instruments 53 muon neutrinos 53 spectral characteristics 53 neutron radiation 53 stratocumulus clouds 53 inhomogeneities 53 Keck Interferometer 53 thermosphere 53 thermal inertia 53 INMS 53 Geomagnetic storms 53 periodicities 53 infrared laser beam 53 geomagnetic activity 53 Mössbauer 53 atomic particles 53 Cassini flybys 53 infalling gas 53 planetary surfaces 53 planet HD #b 53 atmospheric 53 manipulating atoms 53 magma chambers 53 Wolf Rayet star 53 GRB# 53 THEMIS satellites 53 atmospheric moisture 53 millisecond pulsars 53 colliders 53 hydrologic cycle 53 moons Phobos 53 permanently shadowed regions 53 spacecraft Cassini 53 protoplanetary disks 53 particle physics experiments 53 gravitational attraction 53 WISE spacecraft 53 colliding asteroids 53 supergiant stars 53 blackholes 53 NASA Wilkinson Microwave 53 Gravitational lensing 53 Titan Saturn 53 masers 53 planetary transits 53 Martian atmosphere 53 planets asteroids 53 Martian lander 53 lightwaves 53 silicate dust 53 Earthlike planets 53 SMBHs 53 ejecta plume 53 lithosphere 53 W boson 53 Crab Pulsar 53 ESA Integral 53 Comet Holmes 53 shadowed craters 53 Antarctic glacier 53 outflowing 53 polarized electrons 53 planet Uranus 53 flyby spacecraft 53 Itokawa 53 electrochemical reactions 53 Io Europa 53 glacier calving 53 antiproton 53 transiting exoplanet 53 polar caps 53 isotope fractionation 53 Zeta Ophiuchi 53 spiral galaxy NGC 53 ion thrusters 53 Clementine spacecraft 53 ionizes 53 Solar TErrestrial RElations Observatory 53 Seyfert galaxies 53 spaceweather.com 53 Linda Spilker Cassini 53 Orionids 53 eclipsing binary 53 X ray binary 52 Jupiter Saturn 52 neutrino beam 52 red supergiants 52 photoionization 52 Galilean satellites 52 Stephan Quintet 52 missing baryons 52 wavefunction 52 Doppler measurements 52 convective storms 52 elliptical galaxy NGC 52 RHESSI 52 GALEX 52 Kraken Mare 52 seafloor sediments 52 dimming starlight 52 condensation nuclei 52 Context Camera 52 EPOXI spacecraft 52 gravitational acceleration 52 Orbiting Carbon Observatory OCO 52 galaxy formation 52 galaxy redshift 52 Titan flyby 52 gravitationally 52 colliding galaxies 52 colloidal crystals 52 Madden Julian Oscillation 52 interstellar dust particles 52 Candor Chasma 52 phytochrome 52 undersea volcanoes 52 gamma ray flares 52 Isidis Planitia 52 asteroid 52 Valles Marineris 52 boreal ecosystems 52 infra red radiation 52 spacecraft 52 supercooled liquid 52 Delta Cephei 52 Cat Paw Nebula 52 distant galaxy clusters 52 comet particles 52 hypersonic speeds 52 subatomic 52 Sagittarius B2 52 twin STEREO spacecraft 52 Adam Riess 52 scanning electron microscopes 52 THz radiation 52 IRC +# 52 Spitzer infrared 52 gravitational perturbations 52 Kuiper belt object 52 inhabitable planets 52 interannual variability 52 tectonic plate movements 52 NASA Stardust spacecraft 52 flood basalts 52 constellation Hercules 52 topological insulators 52 Plate tectonics 52 Haumea 52 atmospheric circulation 52 hydrothermal fluid 52 cobalt atom 52 lunar craters 52 photochemistry 52 planet gravitational tug 52 globulars 52 Mars moon Phobos 52 arcsec 52 Orbiter LRO 52 asteroids orbiting 52 radial velocity method 52 infrared ultraviolet 52 barometric pressures 52 moons circling 52 mesospheric 52 Arecibo radar 52 supersolid 52 Martian rovers 52 nanoparticle arrays 52 infrared observatory 52 electron orbitals 52 SN #E 52 quasicrystal 52 phyllosilicates 52 KBOs 52 NASA Spirit rover 52 Reiner Gamma 52 emitted photons 52 orbiting observatories 52 Himalayan river basins 52 cuprate superconductors 52 radial velocity 52 HL Tau 52 phytoplankton blooms 52 atomic nuclei 52 vibrational modes 52 SNR #-#.# 52 planets Uranus 52 diffraction pattern 52 terahertz waves 52 sun corona 52 Manned missions 52 Coronal Mass Ejections CMEs 52 NGC #A 52 Orbiter MRO 52 oscillation amplitude 52 comet Lulin 52 Cabeus crater 52 supernovae explosions 52 Trojan asteroids 52 soundwaves 52 sun irradiance 52 prebiotic molecules 52 Rosetta spacecraft 52 Rosetta lander 52 NASA STEREO 52 asteroid Steins 52 luminous galaxies 52 emit electromagnetic waves 52 moon Ganymede 52 galactic alignment 52 Enceladus flyby 52 uncharged particles 52 electromagnetic phenomena 52 zodiacal light 52 Caloris Basin 52 prograde 52 Quadrantids 52 Jonathan Lunine 52 Epsilon Aurigae 52 dense clumps 52 magnetization reversal 52 unmanned probes 52 polaritons 52 Antennae Galaxies 52 Rydberg atoms 52 KAGUYA 52 Toutatis 52 Earth thermosphere 52 ESA Envisat satellite 52 photons particles 52 electrons emitted 52 spheroidal 52 Epsilon Eridani 52 clathrates 52 millisecond pulsar 52 terahertz pulses 52 extrasolar planets orbiting 52 Coronal mass 52 helicity 52 Banerdt 52 supercooling 52 gravitational interactions 52 Cosmic Microwave Background CMB 52 isotherms 52 biogeochemical cycles 52 Suzaku X ray 52 Pluto Charon 52 meteorite bombardment 52 Shackleton crater 52 silicate rocks 52 orbiting observatory 52 stratospheric ozone 52 subglacial lakes 52 Kuiper belt 52 sized planets orbiting 52 proton proton 52 Kelvin Helmholtz 52 Wolszczan 52 Bose Einstein condensate BEC 52 stellar nurseries 52 extrasolar planetary 52 Martian polar 52 reflection nebula 52 Comet Elenin 52 orbiting spacecraft 52 microshutters 52 comet Hale Bopp 52 velocity dispersion 52 Observatory SDO 52 Mars orbiter 52 Helioseismic 52 type Ia supernova 52 Quadrantid 52 thermal diffusivity 52 Extraterrestrial UFOs 52 absorb neutrons 52 spacecraft orbiting 52 Ringed Planet 52 piezoelectric crystal 52 quantum mechanically 52 visible wavelengths 52 subatomic particles 52 gravitons 52 COROT 7b 52 gamma ray observatories 52 retrorocket 51 neutron beams 51 Anisotropy Probe 51 superfluid helium 51 cosmic ray protons 51 Venusian surface 51 glows brightly 51 extragalactic 51 Extrasolar planets 51 coronagraph 51 HARPS instrument 51 ultracold temperatures 51 outermost layers 51 inner moons 51 millimeter wavelengths 51 Tectonic plates 51 elliptical orbits 51 slender crescent 51 oxidized mercury 51 GRB #A 51 geothermal gradient 51 galaxy cluster 51 earthshine 51 stratospheric clouds 51 photons emitted 51 oscillations 51 convective clouds 51 planetary nebulae 51 Michelson interferometer 51 Maunder minimum 51 Type 1a supernovae 51 asthenosphere 51 ultraviolet wavelengths 51 Rosette Nebula 51 VIRTIS 51 supercold 51 infrared spectroscopic 51 Saturn moons 51 subglacial 51 ionospheric disturbances 51 exosolar planets 51 superheavy elements 51 stony meteorites 51 nanoworld 51 vapor plume 51 photon energies 51 SN #C 51 galactic collisions 51 gaseous planets 51 Huygens mission 51 thermohaline circulation