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(Click for frequent words.) 76 Earth magnetosphere 73 heliosphere 72 galactic cosmic rays 69 magnetotail 68 ionized gas 67 magnetospheric 66 magnetic reconnection 66 ionosphere 66 exosphere 66 Jupiter magnetosphere 66 planet magnetosphere 65 Saturn magnetosphere 65 magnetic fields 65 photosphere 65 heliospheric 65 Earth ionosphere 65 interstellar medium 65 magnetopause 64 sodium atoms 64 galactic disk 64 heliosheath 64 solar corona 64 Oort Cloud 63 meteoroids 63 polar vortex 63 chromosphere 63 Oort cloud 63 ejecta 63 mesosphere 63 coronal mass ejections 62 gravitationally 62 X ray emission 62 protoplanetary disk 62 planets orbits 61 icy moons 61 jovian 61 cosmic rays 61 ionized particles 61 Gravitational waves 61 cosmic ray particles 61 comet nucleus 61 circumstellar 61 accretion disk 61 interstellar clouds 61 heliopause 60 Kuiper belt 60 planetesimals 60 substorm 60 magnetic flux 60 comets 60 neutron star 60 plasmasphere 60 Upsilon Andromedae 60 galactic magnetic 60 gravitational interactions 60 collisional 60 solar flares 60 corona 60 moon Io 60 spacetime 59 coronal mass ejections CMEs 59 martian atmosphere 59 cosmic ray 59 X ray wavelengths 59 GJ#b 59 interstellar dust 59 galaxy clusters 59 Solar System 59 exoplanetary 59 solar nebula 59 galactic cosmic ray 59 meteoroid 59 protostar 59 Kuiper Belt 59 rotational axis 59 elongated orbits 58 icy comets 58 energetic electrons 58 Saturn rings 58 hydrosphere 58 vortices 58 Alfven waves 58 planetary nebulae 58 supermassive black hole 58 mantle plumes 58 terrestrial planets 58 galactic bulge 58 impactors 58 cometary debris 58 circumstellar disk 58 supernova explosions 58 substorms 58 infrared radiation 58 eccentric orbits 58 infalling 58 gaseous planet 58 moonlets 58 planetary orbits 58 gravitational interaction 58 moonlet 58 coronal mass ejection 58 supernova explosion 58 gravitational radiation 58 lithosphere 57 convective 57 auroral 57 magnetization 57 chondrules 57 rubidium vapor 57 galactic halo 57 volcanic plumes 57 cosmological distances 57 Milky Way Galaxy 57 silicon monoxide 57 comet 57 comets asteroids 57 Earth radii 57 interstellar space 57 KBOs 57 HD#b 57 auroral displays 57 lunar crust 57 Cosmic rays 57 atomic nuclei 57 circular orbits 57 superfluid 57 electrons 57 Kuiper Belt objects 57 nuclei 57 interstellar cloud 57 infall 57 nebular 57 galaxies 57 gravitational 57 atoms 57 helium atoms 57 ions 57 ULIRGs 57 excitons 57 neutrons 57 moon Mimas 57 ionised gas 57 Earth magnetotail 57 elliptical galaxy 57 electron density 57 moon Enceladus 56 dwarf galaxy 56 radiative 56 quasar 56 gravitational waves 56 meteorite impacts 56 gravitational pulls 56 Mercury magnetosphere 56 oppositely directed 56 Kuiper belt objects 56 Rossby waves 56 comets orbiting 56 water vapor 56 carbonate minerals 56 CMEs 56 highly elliptical orbits 56 active galactic nuclei 56 gamma rays emitted 56 stellar nurseries 56 prograde 56 IBEX spacecraft 56 cryosphere 56 coronal heating 56 aerosol particles 56 SOHO spacecraft 56 Milankovitch cycles 56 ionize 56 elliptical orbits 56 Rydberg atom 56 stellar occultation 56 retrograde orbit 56 extrasolar 56 circumstellar disks 56 magnetic monopoles 56 GJ #b [002] 56 Valles Marineris 56 Pluto Charon 56 tidally 56 Enceladus 56 outer planets 56 quasars 56 neutron stars 56 diffract 56 magnetar 56 AGNs 56 galaxy cluster 56 gamma rays 56 APXS 56 proto planetary disk 55 Virgo Cluster 55 post perovskite 55 Ulysses spacecraft 55 accretion disks 55 Corot 9b 55 cometary 55 magnetic polarity 55 Rydberg atoms 55 weakly interacting 55 Eta Carinae 55 Cassini ion 55 photons 55 high redshift galaxies 55 Venusian atmosphere 55 Alfvén waves 55 airglow 55 periodicities 55 Kuiper Belt Objects 55 cometary dust 55 protoplanetary disks 55 basaltic rocks 55 dipoles 55 tropopause 55 sun corona 55 Neutron stars 55 galactic clusters 55 planet orbits 55 antiferromagnets 55 permanently shadowed 55 Saturnian 55 dynamical 55 electron spins 55 globulars 55 Saturnian moon 55 comet tail 55 Fomalhaut b 55 X ray pulses 55 outer corona 55 Milky Way galaxy 55 red supergiants 55 spherical halo 55 planetary magnetospheres 55 dipole moment 55 extrasolar planetary systems 55 distant galaxies 55 Higgs bosons 55 auroras 55 helium ions 55 plasmons 55 colloidal particles 55 elongated orbit 55 GRBs 55 gravitational attraction 55 geomagnetic field 55 nebula 55 Magnetic Imager HMI 55 planets 55 galaxy 55 comet dust 55 WASP #b 55 bilayer 55 Comet Tempel Tuttle 55 infrared wavelengths 55 atmospheric circulation 55 visible wavelengths 55 hydrogen nuclei 55 particles 55 rocky planets 55 ionized gases 55 alpha particles 55 coronal loops 55 oscillations 55 comet Tempel Tuttle 55 coronal holes 55 metallicity 55 atomic nucleus 55 planetesimal 55 asteroids comets 55 ultracold atoms 55 hydrogen atoms 55 comet orbit 54 permanently shadowed craters 54 cosmic radiation 54 diffracted 54 electron ion 54 micrometeoroids 54 Saturn moon Enceladus 54 baryon 54 optical lattice 54 Saturnian system 54 relativistic particles 54 colloidal crystals 54 impactor 54 merging galaxies 54 Galactic cosmic rays 54 oxygen ions 54 magma ocean 54 electron pairs 54 astrophysical 54 crustal 54 diffraction pattern 54 outer layers 54 Galileo spacecraft 54 meridional flow 54 phyllosilicates 54 polaritons 54 terahertz radiation 54 cosmic ray flux 54 Cosmic Microwave Background 54 Andromeda galaxy 54 Martian dust 54 troposphere 54 lithium atoms 54 gravitational tugs 54 observable universe 54 sunspot cluster 54 electron diffusion 54 Epsilon Eridani 54 electron 54 spherules 54 antimatter particles 54 blue supergiant 54 nebulae 54 protoplanets 54 dwarf galaxies 54 Hot Jupiters 54 optical wavelengths 54 highly elliptical orbit 54 absorbs photons 54 inhomogeneous 54 asteroids 54 orbital resonance 54 thermosphere 54 particle detectors 54 ringed planet 54 gaseous planets 54 magnetic dipole 54 Magellanic Clouds 54 CMB photons 54 organic molecules 54 solitons 54 Galaxy Evolution 54 Saturn moons 54 bosonic 54 prominences 54 chlorine monoxide 54 interstellar dust clouds 54 spherically symmetric 54 celestial sphere 54 interstellar boundary 54 laser pulse 54 HII regions 54 starquakes 54 Martian atmosphere 54 aurorae 54 phonons 54 globular clusters 54 quantum tunneling 54 magnetic 54 tropospheric 54 gravity warps 54 planemos 54 magnetars 54 TrES 4 54 cosmic microwave background 54 lightwaves 54 calcium ions 54 mid latitudes 54 Milky Way halo 54 extrasolar planets 54 Saturn outermost 54 protoplanet 54 filaments 54 supermassive black holes 54 excitations 53 RHESSI 53 Coriolis Effect 53 evanescent waves 53 CMB radiation 53 geomagnetic storms 53 emit X rays 53 protons 53 filamentary structure 53 GJ #b [001] 53 SN#A 53 gravitational lens 53 silicate dust 53 ferromagnet 53 Solar flares 53 RS Ophiuchi 53 electron neutrinos 53 Saturnian moons 53 ionise 53 antiparticle 53 nucleosynthesis 53 impactor spacecraft 53 sunlike stars 53 velocity dispersion 53 crustal rocks 53 gaseous envelope 53 occultations 53 gravitational lenses 53 oceanic circulation 53 Iapetus 53 Jupiter Saturn Uranus 53 orbits 53 stellar occultations 53 nucleons 53 quantum mechanically 53 periodic dimming 53 ENAs 53 filamentary 53 galaxy M# [001] 53 Alycia Weinberger 53 planetary 53 atmospheric aerosols 53 Magnetic reconnection 53 x ray beam 53 transiting planet 53 protostars 53 galaxy formation 53 UV photons 53 asteroidal 53 X ray telescopes 53 ultraviolet wavelengths 53 foreground galaxy 53 Cancri e 53 bilayer graphene 53 X ray binary 53 cosmic strings 53 retrograde orbits 53 Jupiter moon Io 53 gravitational tug 53 antiprotons 53 magnetized plasma 53 toroid 53 Jovian moons 53 superheated gases 53 SMBH 53 strange quark 53 upper troposphere 53 gravitational tides 53 planetary nebula 53 XMM Newton 53 Yarkovsky effect 53 Svedhem 53 magnetic substorms 53 active galactic nucleus 53 electron orbits 53 Gamma rays 53 luminous galaxies 53 ejecta blanket 53 silicates 53 starburst galaxies 53 interstellar dust grains 53 Cabeus crater 53 Shackleton crater 53 cryostat 52 aerosols 52 Wolf Rayet stars 52 Voyager spacecraft 52 atomic lattice 52 surface plasmons 52 stratospheric ozone 52 spheroidal 52 tholins 52 innermost planet 52 subatomic particles 52 particle acceleration 52 gamma ray burst 52 reionization 52 deuterium atoms 52 shorter wavelengths 52 planets moons 52 asteroid belt 52 magma chambers 52 millimeter wavelength 52 Orion Nebula 52 quasicrystal 52 electrons orbiting 52 Churyumov Gerasimenko 52 blue straggler 52 convection currents 52 lowermost mantle 52 moon Mab 52 Methone 52 supergiant star 52 asteroids orbiting 52 electromagnetic flux 52 cosmic microwave radiation 52 silicate minerals 52 hydroxyl molecules 52 gravitational lensing 52 Kelvin Helmholtz 52 muon 52 cell membrane 52 magnetospheres 52 Great Conveyor Belt 52 hydrogen ions 52 nanobubbles 52 Polar Vortex 52 Wolf Rayet star 52 olivine mineral 52 gamma ray flares 52 wavefunction 52 Itokawa 52 lensing galaxy 52 superfluids 52 polar regions 52 clathrates 52 Beta Pictoris b 52 perihelion 52 neutral mass spectrometer 52 Saturn moon Mimas 52 binary asteroid 52 pulsar 52 intrinsic brightness 52 Red Rectangle 52 bosons 52 coronal loop 52 runaway thermonuclear 52 polarimetry 52 axial tilt 52 iron pnictides 52 Arches Cluster 52 Galilean moons 52 atomic particles 52 Mimas 52 BP Psc 52 neutrino 52 millisecond pulsar 52 planet HD #b 52 meteoritic material 52 galactic cores 52 P/# A2 52 proplyds 52 neutralinos 52 waveguide 52 muons 52 electromagnetic 52 coronal hole 52 polar craters 52 AB Aurigae 52 quasiparticles 52 angular momentum 52 plasmon 52 antiproton 52 topological defects 52 interstellar particles 52 diffuse aurora 52 Io Europa 52 Io volcanoes 52 astrophysical phenomena 52 lunar perigee 52 permanently shadowed regions 52 nucleon 52 supersymmetric particles 52 emits X rays 52 dipolar 52 Interstellar Boundary Explorer 52 ultraviolet radiation emitted 52 astronomical objects 52 supernova remnants 52 spherical particles 52 lipid membranes 52 planets Uranus 52 meteor impacts 52 spiral galaxies 52 Upsilon Andromedae b 52 rubidium atoms 52 terahertz waves 52 YORP effect 52 spicules 52 Coronal mass 52 lunar equator 52 electron scattering 52 neutrinos 52 fainter objects 52 Jupiter Ganymede 52 outer membrane 52 ionised 52 interfacial 52 nightside 52 X ray binaries 52 globular cluster 52 Toutatis 52 spectroscopic analysis 52 magmas 52 Sromovsky 52 galactic alignment 52 ion collisions 52 vertical wind shear 52 subglacial lakes 52 blazar 52 dopants 52 photon energies 51 antineutrinos 51 electronic excitations 51 elliptical galaxies 51 starburst galaxy 51 Type Ia supernova 51 nanomesh 51 filamentary structures 51 actin filaments 51 Hubble observations 51 electrostatic repulsion 51 dye molecules 51 inner asteroid belt 51 deep convective clouds 51 X ray emitting 51 #P/Churyumov-Gerasimenko 51 nanopillars 51 galaxy NGC 51 exciton 51 radial velocity 51 subsurface ocean 51 ionized molecules 51 Geminga 51 exoplanets 51 mineral olivine 51 helium nuclei 51 submillimeter 51 pions 51 cometary material 51 Carina constellation 51 continental crust 51 binary asteroids 51 potassium atoms 51 spatially resolved 51 relativistic jets 51 lunar craters 51 moons orbiting 51 GZK cutoff 51 torus 51 polariton 51 supernova remnant 51 redshifted 51 Planetary nebulae 51 silicate rocks 51 Phoebe orbits 51 gamma ray observatory 51 galactic cosmic radiation 51 electrons behave 51 crystallites 51 high temperature superconductivity 51 atmospheric convection 51 V# Mon 51 superheavy elements 51 axions 51 diffraction grating 51 microphysical 51 planets comets 51 exoplanets orbiting 51 microcavity 51 convection 51 helium atom 51 zodiacal dust 51 dynamical evolution 51 dimer 51 gravitons 51 Fermi telescope 51 perturbations 51 RXTE 51 penumbral shadow 51 metallic nanostructures 51 cosmic particles 51 dynamical processes 51 gamma ray flashes 51 stratospheric clouds 51 graphene sheet 51 volcanism 51 ecliptic plane 51 geomagnetic substorms 51 electron beams 51 interplanetary spacecraft 51 moon gravitational pull 51 astrophysical objects 51 magma chamber 51 Henize #-# 51 graphene sheets 51 gravitationally bound 51 interstellar magnetic 51 habitable zones 51 quasiparticle 51 Bose Einstein condensates 51 gamma ray emitting 51 HM Cancri 51 galaxy M# [002] 51 galaxies collide 51 habitable planets 51 transiting planets 51 SMBHs 51 solar irradiance 51 constellation Ursa Major 51 longwave radiation 51 quantum particle 51 inner moons 51 electron flux 51 molten droplets 51 Saturn Enceladus 51 zinc ions 51 cosmic ray collisions 51 afterglows 51 spectral fingerprint 51 Neutrons 51 coronagraph 51 sunspots 51 infalling gas 51 spectrographs 51 W bosons 51 TrES 51 orbits Saturn 51 asteroid 51 dipole 51 magma molten rock 51 diffracting 51 oxygen atoms 51 relativistic speeds 51 planets asteroids 51 STEREO 51 retroreflector 51 heavily cratered 51 Coma Cluster 51 fissure eruption 51 TGFs 51 rifting 51 Helioseismic 51 Kuiper belt object 51 crystal lattice 51 Gal Yam 51 cosmic magnifying glass 51 inhomogeneities 51 cryovolcanism 51 supernovae 51 quantum criticality 51 Cepheids 51 infrared spectral 51 vorticity 51 volcanic magma 51 dopant atoms 51 YBCO 51 molten magma 51 GRB #B 51 electrons protons 51 conduction electrons 51 Casimir cavity 51 HD# [002] 51 nanomagnets 51 Ithaca Chasma 51 sterile neutrinos 51 noctilucent clouds 51 advection 51 phonon 51 diffraction patterns 51 superlens 51 HL Tau 50 lipid membrane 50 hot Jupiters 50 UA Lunar 50 magnetic dynamo 50 midlatitudes 50 antiparallel 50 gravitational microlensing 50 asthenosphere 50 vesicle 50 auroral activity 50 backscattered 50 planetary Transits 50 distant quasars 50 J# +# [002] 50 HD #b [002] 50 moon Phobos 50 HiRISE image 50 exo planets 50 Saturnian moon Titan 50 strangelets 50 uncharged particles 50 SN #A 50 outermost layers 50 sulfate aerosols 50 Comet Hartley 2 50 microgravity environment 50 Thermal Emission Spectrometer 50 gamma ray bursts 50 Jupiter Saturn 50 Earthlike planets 50 polar caps 50 ionizes 50 Mott insulators 50 rotational velocity 50 magnetic excitations 50 brown dwarfs 50 extragalactic 50 chromophore 50 planets orbiting stars 50 supermassive stars 50 Carina Nebula 50 Jupiter Uranus 50 fermions 50 cosmic cannibal 50 perigee 50 magnetic particles 50 SNR #-#.# 50 magnetization reversal 50 Earthlike 50 phyllosilicate 50 Late Heavy Bombardment 50 basaltic 50 Uranus 50 Supernova #A 50 gamma ray emission 50 magnetic vortices 50 moon Charon 50 particles WIMPs 50 Martian polar 50 infrared laser beam 50 rotating neutron stars 50 downwelling 50 Coronal Mass Ejections 50 Tempel Tuttle 50 Martian craters 50 unpaired electrons 50 micrometer scale 50 paramagnetic 50 exoplanet 50 meteoroid impacts 50 Small Magellanic Cloud 50 spherical particle 50 Mercury exosphere 50 constellation Aquarius 50 planetary transits 50 absorb photons 50 nanocrystals 50 Tharsis Rise 50 hydroxyl radicals 50 galaxy redshift 50 geoneutrinos 50 de Pater 50 exoplanetary systems 50 moon Ganymede 50 Syrtis Major 50 Anisotropy Probe 50 double helix nebula 50 wrinkle ridges 50 optical lattices 50 photochemical reactions 50 geomagnetic activity 50 photonic crystal 50 molten rock 50 potentially habitable planets 50 infrared wavelength 50 galactic mergers 50 microquasar 50 SN #gy 50 VY Canis Majoris 50 ITCZ 50 olivine 50 nanobelts 50 Reiner Gamma 50 xenon ions 50 aurora 50 sterile neutrino 50 stellar seismology 50 supercurrent 50 surface plasmon 50 protoplanetary 50 topological insulators 50 planetary atmospheres 50 electrons emitted 50 nucleation 50 subatomic particle 50 Saturn auroras 50 moonquakes 50 hydrothermal fluid 50 energetic gamma rays 50 inhabitable planets 50 asteroid impacts 50 mineralogical composition 50 nanotube 50 constellation Virgo 50 THz radiation 50 solar flares coronal 50 mantle convection 50 Maunder minimum 50 biomolecule 50 planetary surfaces 50 Bose Einstein Condensate 50 millimeter wavelengths 50 Saturn Cassini 50 solar prominences 50 wavelengths 50 electromagnetic signals 50 VIRTIS 50 gravitational slingshot 50 geomagnetic 50 Electrons 50 periodic oscillations 50 micrometre sized 50 Neptune Uranus 50 gluon 50 magnesium ions 50 RY Sagittarii 50 planet transits 50 numerical simulations 50 X ray observatories 50 hadrons 50 nanodroplets 50 graphene layers 50 orbiting gamma ray 50 NASA STEREO 50 cosmic ray intensity 50 type Ia supernovae 50 antihydrogen 50 electron positron pairs 50 ARPES 50 type Ia supernova 50 CoRoT 9b 50 meta atoms 50 Corot 7b 50 cobalt atoms 50 starlight 50 cobalt atom 50 anomalous cosmic rays 50 Antennae Galaxies 50 ferric oxides 50 proton 50 ionospheric 50 photon 50 grabens 50 particle beams 50 helicity 50 celestial bodies 50 Beta Pictoris 50 wavefronts 50 Earth crust 50 lithium ions 49 Relations Observatory STEREO 49 Comet Churyumov Gerasimenko 49 polypeptide chain 49 brane 49 unconventional superconductivity 49 superstrings 49 Lagrangian 49 Comet #P 49 quantum mechanical 49 moon Titan 49 Stephan Quintet 49 Sunspots 49 magmatic 49 ferroelectricity 49 radiative cooling 49 Mössbauer 49 graphite whiskers 49 planet Uranus 49 hydrological cycle 49 F actin 49 magma 49 martian meteorites 49 martian surface 49 Comet Swift 49 planetoids 49 hypervelocity 49 planet Gliese #g 49 spiral galaxy NGC 49 OGLE TR #b 49 outermost planets 49 Explorer WISE 49 GALEX 49 NGC #A 49 spectroscopic 49 ESA XMM Newton 49 Large Magellanic Cloud 49 electron proton 49 earth crust 49 umbral shadow 49 spacecraft flyby 49 sundog 49 silicon atoms 49 supercomputer simulations 49 millisecond pulsars 49 potassium ions 49 cosmic phenomena 49 Kuiper Belt object 49 microscale 49 Mandushev 49 antiparticles 49 comet Shoemaker Levy 49 planetary embryos 49 energetic cosmic rays 49 constellation Cassiopeia 49 distant supernovae 49 oceanic crust 49 gravitational tidal 49 photoemission 49 extrasolar planetary 49 Deep Impact craft 49 sunspot activity 49 THEMIS satellites 49 gravitational wave 49 sulfur isotope 49 Evolution Explorer 49 Amundsen Sea 49 moons 49 GeV 49 AU Mic