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(Click for frequent words.) 69 ionosphere 67 tropospheric 65 auroral 64 cosmic ray flux 63 Earth ionosphere 61 X ray wavelengths 61 jovian 60 scatterometer 60 photometry 60 geomagnetic activity 59 polarimetric 59 Rossby waves 59 airglow 59 radiative transfer 59 atmospheric phenomena 59 VIRTIS 59 polar vortex 58 cosmic ray 58 coronal loops 58 auroral activity 58 stellar occultation 58 polar orbiting satellites 58 cosmic ray intensity 58 INMS 58 interferometric 58 azimuthal 58 galactic cosmic rays 58 millimeter wavelengths 58 ESO VLT 58 Ulysses spacecraft 58 radar interferometry 58 NASA Wilkinson Microwave 58 altimetry 58 RXTE 58 polarimetry 57 Earth orbiting satellites 57 magnetospheric 57 solar corona 57 dipole moment 57 Adaptive optics 57 geomagnetic 57 spectroscopic measurements 57 substorm 57 Spectrograph 57 crustal thickness 57 CMB radiation 57 radiosonde 57 periodicities 57 starquakes 57 radiosondes 56 ARPES 56 exoplanetary 56 cosmic ray particles 56 astrometry 56 interplanetary spacecraft 56 volcanic plumes 56 geomagnetism 56 radiometers 56 astrophysical phenomena 56 Advanced Microwave Scanning 56 RHESSI 56 GALEX 56 X ray pulses 56 Doppler shift 56 upper troposphere 56 SINFONI 56 X ray spectrometer 56 anisotropy 56 gravitational lensing 56 electrical resistivity 56 cosmological distances 56 electron density 56 Ionospheric 56 Synthetic Aperture Radar 56 atmospheric 56 WFPC2 56 Fermi LAT 56 Delta Cephei 56 Mars Color Imager 56 moonquakes 56 vorticity 56 atmospheric turbulence 56 orbiting gamma ray 56 satellite altimetry 56 RRATs 55 infrared wavelength 55 cosmic microwave radiation 55 Mott insulator 55 spectrographs 55 radial velocity 55 moon Io 55 gamma ray flashes 55 SNR #-#.# 55 electromagnetic flux 55 eclipsing binary 55 geostationary satellite 55 Doppler shifts 55 spaceborne 55 periodic oscillations 55 Mössbauer 55 auroral emissions 55 synthetic aperture 55 mesoscale 55 interferograms 55 Planck satellite 55 volcanic aerosols 55 radiometer 55 Cosmic Microwave Background 55 electromagnetic signals 55 troposphere 55 Composite Infrared Spectrometer 55 geomagnetic storms 55 SeaWiFS 55 Anisotropy Probe WMAP 55 situ measurements 55 solar irradiance 55 backscattered 55 interferometers 55 infrared spectral 55 visible wavelengths 55 microwave radiometer 55 cirrus cloud 55 plasmasphere 55 geosynchronous satellites 55 gravitational lens 55 metallicity 55 UVOT 54 Cepheids 54 spectrometric 54 X ray telescopes 54 Galileo spacecraft 54 Infrared Pathfinder Satellite 54 ESA Envisat satellite 54 gravitational radiation 54 occultations 54 submillimeter 54 multiwavelength 54 noctilucent clouds 54 atmospheric disturbances 54 backscattering 54 baryon 54 X ray observatories 54 exosphere 54 extragalactic 54 cloud microphysics 54 solitons 54 geomagnetic disturbances 54 gamma ray emission 54 velocity dispersion 54 X ray emission 54 UVIS 54 extrasolar 54 lightwaves 54 geosynchronous 54 planet magnetosphere 54 AATSR 54 Interferometer 54 convective 54 spectrographic 54 Mercury exosphere 54 Venusian atmosphere 54 magnetic excitations 54 DISR 54 microwave radiometers 54 interferogram 54 heliospheric 54 photoluminescence 54 LOFAR 54 interannual variability 54 obscuration 54 gravitational wave 54 atmospheric oceanic 54 infrared ultraviolet 53 NASA WMAP 53 AMSR E 53 SPIRE instrument 53 Saturn aurora 53 Rayleigh scattering 53 convective clouds 53 photometer 53 Keck telescope 53 X ray binary 53 wavebands 53 NOAA GOES 53 quasiparticle 53 Herbig Haro 53 Geomagnetic 53 EPOCh 53 Spectroscopic 53 Corot 9b 53 interferometric observations 53 Kuiper belt objects 53 infrared imager 53 detect gamma rays 53 thermally induced 53 stellar occultations 53 radio occultation 53 arcsec 53 particle acceleration 53 atmospheric aerosols 53 Mars CRISM 53 optical spectra 53 relativistic particles 53 ESO Paranal Observatory 53 HARPS instrument 53 Anisotropy 53 Gravitational waves 53 Keck telescopes 53 interferometry 53 aboard ESA Envisat 53 multi decadal 53 absorption spectra 53 rotational axis 53 equatorial orbit 53 ephemeris 53 sulfur isotope 53 planetary orbits 53 electron diffraction 53 total solar irradiance 53 dipolar 53 laser altimeter 53 irradiance 53 COROT 53 cirrus 53 atmospheric chemistry 53 mesosphere 53 InSAR 53 Hipparcos 53 blazar 53 transiting exoplanets 53 extrasolar planetary systems 53 θ 53 magnetospheres 53 Higgs bosons 53 infrared astronomy 53 Geomagnetic storms 53 infrared telescopes 53 ultraviolet wavelengths 53 spectro 53 electron flux 53 astrometric 53 inhomogeneities 53 WMAP satellite 53 thermal gradients 53 magnetic reconnection 53 Cherenkov radiation 53 fainter objects 53 Solar TErrestrial RElations Observatory 53 occultation 53 coronal holes 53 supercurrent 53 gravitational waves 53 IR wavelengths 53 blazars 53 NASA Landsat 53 ionospheric disturbances 53 earthshine 53 Uninhabited Aerial Vehicle 53 Nernst 53 teleconnections 53 Comet 9P/Tempel 1 53 detect gravitational waves 53 microlensing 53 geostationary satellites 52 VLTI 52 aurorae 52 Milankovitch cycles 52 axial tilt 52 Cosmic Background Explorer COBE 52 IBEX spacecraft 52 solar flares 52 telescopic observations 52 MARSIS radar 52 geoid 52 photoelectron 52 dephasing 52 polarimeter 52 ultracold atoms 52 SQUIDs 52 synoptic 52 interferometer 52 infrared spectrograph 52 numerical simulations 52 gravitational lenses 52 Envisat ASAR 52 gamma ray observatory 52 Heterodyne Instrument 52 high redshift galaxies 52 astrophysical 52 Magellanic Stream 52 D CIXS 52 sun irradiance 52 Cosmic Background Explorer 52 mesospheric 52 SAXS 52 CIRS 52 Total Ozone Mapping 52 radar altimetry 52 Interferometric 52 meteoroid 52 interferometric synthetic aperture radar 52 intrinsic brightness 52 phonon 52 highly elliptical orbits 52 inhomogeneous 52 mT 52 sunspot activity 52 circumstellar 52 magnetic polarity 52 photometric 52 infrared wavelengths 52 Cloud Aerosol Lidar 52 X ray observatory 52 diffraction patterns 52 magnetic dipole 52 XMM Newton 52 surface plasmons 52 Thermal Emission Spectrometer 52 spectroscopic analysis 52 Wilkinson Microwave Anisotropy Probe 52 Jupiter magnetosphere 52 Gamma ray 52 lightwave 52 Comet Halley 52 Mpc 52 microwave frequencies 52 multibeam 52 gaussian 52 microphysical 52 Jupiter moon Io 52 TGFs 52 vibrational modes 52 amplitudes 52 AVHRR 52 radiative 52 ultraviolet radiation emitted 52 twin STEREO spacecraft 52 SCIAMACHY 52 Madden Julian Oscillation 52 convective storms 52 Interferometer VLTI 52 STEREO spacecraft 52 ESA Envisat 52 SIRTF 52 auroral displays 52 ultraviolet wavelength 52 synthetic aperture radar 52 inelastic scattering 52 ionised gas 52 TerraSAR X 52 Measuring Mission TRMM 52 AERONET 52 LAGEOS 52 polar mesospheric clouds 52 Moderate Resolution Imaging 52 diffuse aurora 52 Phased array 52 NASA Far Ultraviolet 52 ACS WFC 52 Earth magnetosphere 52 Keck Interferometer 51 satellites 51 Telescope BAT 51 magnetic flux 51 planetary Transits 51 advection 51 Ultraviolet Imaging Spectrograph UVIS 51 ENVISAT 51 axion 51 Observatory SDO 51 earth orbiting satellites 51 keV 51 dI dV 51 optical wavelengths 51 dynamical 51 luminosities 51 arcmin 51 ESO telescope 51 attosecond 51 brightnesses 51 femtosecond pulses 51 UKIRT 51 meridional 51 cyclonic circulations 51 polaritons 51 thermal infrared 51 NASA QuikScat satellite 51 Kuiper Belt Objects 51 Spectroradiometer 51 multispectral 51 diurnal cycle 51 Keck Telescope 51 Comet Hartley 2 51 superluminal 51 frequency modulation 51 LRO spacecraft 51 infrared spectra 51 HD#b 51 KIPAC 51 Aqua satellite 51 submillimetre 51 Saturn magnetosphere 51 APXS 51 Geminga 51 infrasound 51 RS Ophiuchi 51 astronomical objects 51 isotope fractionation 51 planetary atmospheres 51 Earth Observation EO 51 polariton 51 ROSAT 51 spectral characteristics 51 TRMM Microwave Imager TMI 51 decadal 51 arcminutes 51 TRMM satellite 51 Hubble observations 51 linearly polarized 51 cm -1 51 temperature gradients 51 magnetotail 51 prograde 51 quantum oscillations 51 XMM Newton observations 51 La Silla observatory 51 Envisat satellites 51 astrophysical objects 51 Climate Experiment GRACE 51 infrared spectrometers 51 remotely sensed 51 Epsilon Aurigae 51 NEXRAD radar 51 galaxy redshift 51 Submillimeter Array 51 longwave radiation 51 paleomagnetic 51 SBAS 51 superfluids 51 aurora 51 sunspot cycle 51 electroluminescence 51 millimeter wavelength 51 bolometer 51 composite infrared spectrometer 51 coronal hole 51 illuminance 51 isotherm 51 Relations Observatory STEREO 51 circularly polarized 51 Mars Climate Sounder 51 CoRoT satellite 51 HII regions 51 Hubble orbits 51 Solar flares 51 infrared 51 hyper spectral 51 arcseconds 51 beamwidth 51 Mars orbiting spacecraft 51 mantle plumes 51 spatially resolved 51 redshifts 51 orbital 51 Raman scattering 51 spectral 51 distant supernovae 51 velocity vector 51 microwave radiation 51 carbonaceous chondrites 51 Fermi telescope 51 Imke de 51 Descent Imager Spectral Radiometer 51 upper tropospheric 51 spectral bands 51 Mini TES 50 magnetic fields 50 spectroscopically 50 Cassini ion 50 Satellites GOES 50 Martian dust 50 ADM Aeolus 50 lensing galaxy 50 nonlinearity 50 coronal mass ejections CMEs 50 Moon Mineralogy Mapper M3 50 Mini SAR 50 afterglows 50 aerosol particles 50 Remote sensing 50 chlorophyll fluorescence 50 sun corona 50 CloudSat 50 ESA ERS 50 gluon 50 infrared interferometry 50 observables 50 cometary material 50 Very Large Array 50 wavefronts 50 laser spectroscopy 50 Doppler radars 50 SOHO spacecraft 50 isobars 50 Saturn auroras 50 vegetation greenness 50 UV wavelengths 50 THz radiation 50 GRB# 50 ASCAT 50 mineralogical composition 50 faint galaxies 50 TDRSS 50 wavelength infrared 50 geostationary orbits 50 Carina constellation 50 HF propagation 50 Saturn outermost 50 QCLs 50 KBOs 50 cantilever deflection 50 blackbody 50 Metop 50 isotherms 50 coronagraph 50 CALIPSO 50 auroras 50 OGLE TR #b 50 Comet Hartley 50 sonoluminescence 50 parallax 50 ESA XMM Newton 50 redshift 50 Mesoscale 50 Cancri e 50 NASA GISS 50 Neutral Mass Spectrometer 50 prominences 50 radial velocity measurements 50 THEMIS 50 bathymetry 50 YORP effect 50 Jenniskens 50 laser pulses 50 VLBA 50 spectra 50 Heliospheric Observatory SOHO 50 Upsilon Andromedae 50 scanning tunneling microscopy 50 infrared imagery 50 fermionic 50 filamentary structure 50 SNe Ia 50 microwave remote sensing 50 radar altimeter 50 Imaging Spectroradiometer MODIS instrument 50 NEAs 50 retrograde orbit 50 Magnetic Imager HMI 50 RS Oph 50 Magnetospheric 50 photocurrent 50 galactic disk 50 gravitational perturbations 50 neutrino mass 50 photosphere 50 neutrino experiments 50 Bose Einstein condensates 50 Fig. 1a 50 dipole 50 extraterrestrial civilizations 50 Astrophysical 50 submillimeter wavelengths 50 Pancam 50 Mini Thermal Emission 50 highly elliptical orbit 50 astronomical observations 50 UAVSAR 50 neutral mass spectrometer 50 Fourier transform 50 Ranging MESSENGER spacecraft 50 diffracting 50 GJ #b [002] 50 reflectance spectroscopy 50 QuikSCAT 50 ray Space Telescope 50 Long Wavelength Array 50 Synthetic Aperture Radar SAR 50 deformable mirror 50 Albedo 50 optical aberrations 50 Voyager spacecraft 50 gamma ray observatories 50 nightglow 50 gamma ray detectors 50 e MERLIN 50 spacecraft flyby 50 stellar seismology 50 Auroral 50 Anisotropy Probe 50 photochemical reactions 50 Diviner 50 subsurface ocean 50 GRB #B 50 Quadrantid 50 orbital resonance 50 photon detector 50 Cosmic Microwave Background CMB 50 spectroscopic 50 dispersive 50 specular reflection 50 orbital inclination 50 magnetosphere 50 albedo reflectivity 50 shorter wavelengths 50 insolation 50 icy moons 49 AGNs 49 metrological 49 reflectometry 49 retroreflector 49 gravitational interaction 49 Sounder AIRS instrument 49 plasmon 49 arcsecond 49 cirrus clouds 49 transiting planets 49 millisecond pulsar 49 directivity 49 hydrosphere 49 resonance frequency 49 downwelling 49 INSAT 3A 49 Rosetta orbiter 49 asteroid orbit 49 magnetic substorms 49 Evolution Explorer 49 ESA Cluster 49 temperature barometric pressure 49 weak gravitational lensing 49 baryon acoustic oscillations 49 ultraviolet imaging spectrograph 49 synchrotron emission 49 longwave 49 numerical simulation 49 Helioseismic 49 mesocyclone 49 photoemission 49 SIRAL 49 optical telescopes 49 TRMM 49 midlatitudes 49 hypervelocity 49 photoionization 49 Scatterometer 49 nonlinear optics 49 infrared observatory 49 τ 49 Saturn auroral 49 planetary astronomer 49 photon counting 49 multiband imaging photometer 49 coronal magnetic field 49 SpaceWeather.com 49 Raman spectra 49 radial velocity technique 49 Earth rotational axis 49 CMEs 49 vertically polarized 49 monochromators 49 asteroseismology 49 electron pairing 49 spectroscopic technique 49 spectrogram 49 altimeters 49 MARSIS 49 MG J# +# 49 celestial phenomena 49 imaging spectrometer 49 CoRoT 49 Epsilon Eridani 49 NASA Cassini spacecraft 49 sunspot 49 magnetic monopoles 49 cryovolcanism 49 VLBI 49 J# +# [002] 49 HiRISE image 49 APEX telescope 49 radiometry 49 coronal 49 Earth magnetotail 49 MTSAT 1R 49 coronal heating 49 sunspots 49 diffusive 49 Saturnian moon Titan 49 chromosphere 49 cosmological observations 49 terahertz frequency 49 radiative cooling 49 exoplanets orbiting 49 bolometers 49 Huygens descent 49 Coulomb blockade 49 Extragalactic 49 EarthCARE 49 submillimeter wavelength 49 TanDEM X 49 lowermost mantle 49 STEREO 49 sterile neutrino 49 SECCHI 49 NEXRAD 49 geomagnetic field 49 magnetoresistance 49 ESO PR 49 climate forcings 49 ESA Planck 49 planetary missions 49 Cassini 49 Elenin 49 enthalpy 49 spaceweather.com 49 energetic cosmic rays 49 orbiting observatories 49 Planetary Camera 2 49 geomagnetic storm 49 Spitzer infrared spectrograph 49 Solar Dynamics Observatory 49 infrared spectrometer 49 anticyclonic 49 NDVI 49 energetic electrons 49 frequency electromagnetic 49 isotropic 49 ENSO cycle 49 Infrared Mapping Spectrometer VIMS 49 GeV 49 Doppler velocity 49 quasicrystal 49 electron positron pairs 49 spectral measurements 49 ionized gases 49 El Nino Southern Oscillation 49 planetary transits 49 sulfate aerosol 49 correlation spectroscopy 49 RAINEX 49 Large Array 49 yr -1 49 spectroscopic observations 49 CALIPSO satellites 49 planetary magnetospheres 49 Cepheid variables 49 geodesy 49 lidar 49 oscillations 49 gravitational slingshot 49 polar latitudes 49 quantum mechanically 49 seismograms 49 proton decay 49 surface plasmon polariton 49 Multi Object Spectrograph 49 bolide 49 equatorial 49 excitations 49 stereochemical 49 UHF VHF 49 helicity 49 polar orbiting 49 single photon detectors 49 de Pater 49 millimetric 49 spatial resolution 49 sodium atoms 49 HIRES spectrometer 49 Interferometric Synthetic Aperture Radar 49 Magellanic Clouds 49 oxygen isotopic 49 NASA CloudSat 49 gradiometer 49 Planetary Transits 49 VY Canis Majoris 49 Imaging Spectrometer 49 Cassini flyby 49 satellite altimeters 49 latitudinal 49 Spitzer infrared 49 geodetic 49 Explorer WISE 49 satellites orbiting Earth 49 Helix Nebula 49 exoplanet 49 spectroscopic techniques 49 gamma ray flares 49 Huygens spacecraft 49 Konacki 49 muon neutrinos 49 Mission TRMM 49 martian atmosphere 49 Southern Oscillation 48 post perovskite 48 XMM Newton X ray 48 atop Mauna Kea 48 magnetisation 48 circularly polarized light 48 distant quasar 48 ejecta 48 sundog 48 Nexrad 48 scintillation 48 topological insulator 48 thruster firings 48 infrared spectroscopy 48 P/# A2 48 frequency VLF 48 orbited Jupiter 48 neutrino oscillation 48 fig. S2 48 tropical troposphere 48 Computer simulations 48 SRTM 48 speckle pattern 48 Gamma ray burst 48 Infrared Thermal Imaging Spectrometer 48 Spectrometer 48 Antarctic Dry Valleys 48 supersymmetric particles 48 Indian Ocean Dipole 48 chemiluminescence 48 geo synchronous 48 binary asteroid 48 Manchester Jodrell Bank 48 neutrino 48 soliton 48 Nili Fossae 48 correlator 48 Doppler measurements 48 equatorial latitudes 48 spectroscopy 48 electron doped 48 emissivity 48 hyperfine 48 HARPS spectrograph attached 48 Kelvin Helmholtz 48 cosmic rays 48 copper oxide superconductors 48 surface roughness 48 planet Gliese #g 48 V# Mon 48 exobiology 48 Orionids 48 radiometric measurements 48 thermodynamic properties 48 QWIP 48 diffraction 48 MERIS 48 electromagnetic 48 Nasa spacecraft 48 gravitational microlensing 48 SPICAM 48 cosmological parameters 48 ultrashort pulses 48 waveband 48 amplitude modulation 48 microquasar 48 magnetotelluric 48 electron scattering 48 orbiter Mars Odyssey 48 Wilkinson Microwave Probe 48 UCO Lick 48 Tempel Tuttle 48 foreground galaxy 48 geosynchronous satellite 48 pointings 48 Mercury flyby 48 magnetar 48 observatories 48 Submillimeter 48 heavy fermion 48 dynamical processes 48 geodynamics 48 HM Cancri 48 monochromator 48 filamentary structures 48 Cepheid variable 48 magnetization reversal 48 Smos 48 noctilucent 48 Credits ESA 48 cosmic microwave background 48 masers 48 photon energies 48 constellation Centaurus 48 ionisation 48 meridional flow 48 terahertz THz 48 Multispectral 48 obliquity 48 NanoSIMS 48 wavefront distortion 48 shortwave infrared 48 SN#A 48 Fig. 2a 48 microsatellites 48 gamma ray photons 48 celestial mechanics 48 synthetic aperture radars 48 Fourier transforms 48 MetOp 48 frequency electromagnetic waves 48 climatology 48 heterodyne 48 ITCZ 48 diffusion coefficients 48 comet McNaught 48 fluorescence excitation 48 GJ#b 48 Doppler lidar 48 collimated 48 magnon 48 ESO telescopes 48 surface plasmon polaritons 48 EVLA 48 orbital velocity 48 FUV 48 z ~ 48 impedance measurements 48 zodiacal light 48 gamma rays emitted 48 Dirac fermions 48 superfluid 48 satellites orbiting 48 magnetic monopole 48 orbiting Chandra 48 gamma ray burst 48 numerical modeling 48 geo stationary satellites 48 Astrophysics 48 downlinks 48 exhaust plume 48 toroid 48 spherically symmetric 48 surface plasmon 48 Triangulum Galaxy 48 downbursts 48 fluorescence intensity 48 Instrument OMI 48 bosonic 48 ocean eddies 48 compressional 48 gravitational wobbles 48 neutron spectrometer 48 MODIS 48 Envisat 48 biogeochemical 48 attosecond pulses 48 neutrino detectors 48 supercontinuum generation 48 Geophys 48 atmospheric convection 48 cosmic phenomena 48 ellipsoid 48 moons Europa 48 Toutatis 48 X ray afterglow 48 WMAP 48 geostationary 48 Mercury magnetosphere 48 geodynamic 48 GZK cutoff 48 electron positron 48 rotational symmetry 48 cosmic ray protons 48 circular polarization 48 Antennae 48 modulated signals 48 X ray Telescope XRT 48 R Coronae Borealis 48 Ionosphere 48 Cosmic rays 48 Suzaku X ray 48 quantum entanglement 48 Hubble Space Telescope HST 48 LORRI 48 ICESat 48 hyperspectral imager 48 Polar Operational 48 solar prominences 48 Cryosat 48 photoelectron spectroscopy 48 water vapor 48 WFC3 48 coronal loop 48 Advanced Synthetic Aperture 48 moonlet 48 oscillatory