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(Click for frequent words.) 68 Fermi Gamma ray 67 gamma ray observatory 67 NASA Wilkinson Microwave 67 Fermi LAT 67 X ray telescopes 67 GRB #B 66 Gamma ray 66 GRB# 65 Evolution Explorer 65 distant supernovae 65 XMM Newton 65 Fermi telescope 65 GALEX 65 Telescope BAT 65 gamma ray flares 65 Galaxy Evolution 65 ESO VLT 65 moonquakes 64 X ray spectrometer 64 ray Space Telescope 64 NASA WMAP 64 X ray afterglow 64 Wilkinson Microwave Anisotropy Probe 64 intrinsic brightness 64 RS Ophiuchi 64 Hubble observations 64 Anisotropy Probe 64 Interferometer 64 ESA XMM Newton 64 neutron spectrometer 64 Anisotropy Probe WMAP 64 ESA Integral 64 Heliospheric Observatory SOHO 63 Spectrograph 63 Keck Telescope 63 substorm 63 RXTE 63 astrophysical phenomena 63 UVOT 63 microlensing events 63 polarimetry 63 X ray observatories 63 Astrophysical 63 EPOCh 63 VIRTIS 63 cosmic microwave radiation 63 backscattered 63 NASA Far Ultraviolet 63 Mössbauer 63 RS Oph 63 Area Telescope LAT 63 Geminga 63 Infrared Pathfinder Satellite 62 gamma ray emission 62 solar corona 62 Planck satellite 62 electron diffraction 62 planetary Transits 62 TGFs 62 type Ia supernovae 62 orbiting gamma ray 62 WMAP satellite 62 SN #A 62 filamentary structure 62 galactic cosmic rays 62 spectroscopic observations 62 Krimigis 62 Burst Alert 62 transiting exoplanets 62 cosmological distances 62 Descent Imager Spectral Radiometer 62 detect gravitational waves 62 HiRISE camera aboard 62 stellar occultations 62 Ulysses spacecraft 62 earthshine 62 Submillimeter Array 62 X ray emission 62 blazars 62 Higgs bosons 62 X ray observatory 62 cosmic ray 62 Peter Jenniskens 62 X ray Telescope XRT 61 exoplanetary 61 orbiting Chandra 61 Magnetospheric 61 Observatory STEREO 61 NASA CloudSat 61 Kuiper belt objects 61 ROSAT 61 Spectroscopic 61 magnetic reconnection 61 Composite Infrared Spectrometer 61 INTEGRAL satellite 61 Delta Cephei 61 gravitational radiation 61 SN #gy 61 Planetary Transits 61 Nasa spacecraft 61 SOHO spacecraft 61 GRB # 61 Wilkinson Microwave Probe 61 Franck Marchis 61 Cancri e 61 NASA twin STEREO 61 NASA ICESat 61 magnetospheric 61 Laser Interferometer Gravitational Wave 61 planetary astronomer 61 X ray wavelengths 61 Cassini ultraviolet 61 GRBs 61 afterglows 61 Multi Object Spectrometer 61 electron neutrinos 61 exo planets 61 imaging spectrometer 61 APXS 61 Near Infrared Camera 61 Helioseismic 61 Convection Rotation 61 gravitational redshift 61 RRATs 61 proton proton 60 faint galaxies 60 Lyman alpha 60 Alfvén waves 60 INMS 60 Observatory SDO 60 ESA Cluster 60 Nasa Kepler 60 AGNs 60 AB Aurigae 60 Cosmic Microwave Background 60 Solar TErrestrial RElations Observatory 60 spectrographic 60 Multi Object Spectrograph 60 supergiant stars 60 Explorer GALEX 60 twin STEREO spacecraft 60 X ray pulses 60 Triangulum Galaxy 60 Hubble Near Infrared 60 geoneutrinos 60 reionization 60 Ultraviolet Optical Telescope 60 spectroscopically 60 Type Ia 60 proplyds 60 inch Samuel Oschin 60 CoRoT satellite 60 NASA THEMIS 60 ESO telescope 60 NASA Chandra 60 extragalactic 60 NASA Cosmic Background 60 Type Ia supernova 60 Keck Interferometer 60 Astrophysics Laboratory 60 Hinode spacecraft 60 submillimetre 60 sterile neutrino 60 antineutrinos 60 Mars Color Imager 60 neutrino oscillation 60 coronagraph 60 starquakes 60 type Ia supernova 60 occultations 60 distant quasar 60 UKIRT 60 Galileo spacecraft 60 Keck telescope 60 Heterodyne Instrument 60 HETE 60 SPICAM 60 absorption spectra 60 KamLAND 60 ESA ERS 60 X ray Observatory 60 extrasolar 60 carbonaceous chondrites 59 HD#b 59 Relations Observatory STEREO 59 retrograde orbit 59 Image NASA JPL 59 SeaWiFS 59 photoemission 59 DEIMOS 59 Neutral Mass Spectrometer 59 Comet 9P/Tempel 1 59 polarimetric 59 ESA Herschel 59 starburst galaxies 59 Mini TES 59 P/# A2 59 Gamma Ray 59 interferometric 59 coronal mass ejections CMEs 59 brightest supernova 59 gamma ray burst 59 Imaging Spectrometer 59 electromagnetic flux 59 Infrared Array Camera 59 gamma ray spectrometer 59 interplanetary spacecraft 59 Chandra Observatory 59 X ray Telescope 59 distant galaxy clusters 59 airglow 59 Paranal Chile 59 NASA Cassini spacecraft 59 photometer 59 millimeter wavelengths 59 infrared ultraviolet 59 Upsilon Andromedae 59 gamma rays emitted 59 extrasolar planetary systems 59 spectroscopic 59 ESA Planck 59 LSND 59 Keck Observatory 59 Cosmic Background Explorer 59 auroral 59 Ray Spectrometer 59 x ray scattering 59 noctilucent 59 Avishay Gal Yam 59 fading afterglow 59 NASA Fermi Gamma 59 numerical simulations 59 polar mesospheric clouds 59 Thermal Emission Spectrometer 59 Infrared Thermal Imaging Spectrometer 59 tropospheric 59 Total Ozone Mapping 59 ARPES 59 WISE infrared 59 V# Mon 59 photoelectron 59 ESO PR 59 HUDF 59 Diviner 59 Cassini flyby 59 blazar 59 eclipsing binary 59 NASA Lunar Prospector 59 Gravitational waves 59 Hubble Space Telescope HST 59 spherically symmetric 59 spectroscopic analysis 59 Comet Holmes 58 antineutrino 58 Type Ia supernovae 58 Aqua satellite 58 NASA EPOXI mission 58 coronal loops 58 interferometry 58 Kuiper Belt Objects 58 Fomalhaut b 58 AKARI 58 gamma ray telescope 58 IBEX spacecraft 58 Synthetic Aperture Radar 58 Samuel Oschin Telescope 58 Jenniskens 58 weak gravitational lensing 58 meteoroid 58 radio occultation 58 Interferometric 58 HARPS spectrograph attached 58 Suzaku X ray 58 Nikku Madhusudhan 58 Solar Dynamics Observatory 58 Neutron Spectrometer 58 infrared astronomy 58 Microlensing 58 infrared observatory 58 geomagnetic activity 58 Astrophysics MOA 58 SNR #-#.# 58 gravitational microlensing 58 Instrument OMI 58 Alpha Particle 58 Wolfgang Brandner 58 gravitational lens 58 Cloud Aerosol Lidar 58 retroreflector 58 Cosmic Microwave Background CMB 58 Mars Reconnaissance Orbiter MRO 58 Ring Nebula 58 radiometer 58 Exoplanet 58 smallest exoplanet 58 #gy 58 radial velocity 58 Saturn magnetosphere 58 infrared spectrograph 58 WMAP 58 Gravitational lensing 58 ultraviolet imaging spectrograph 58 spacecraft flyby 58 noctilucent clouds 58 Gal Yam 58 NASA Voyager spacecraft 58 HARPS instrument 58 Planetology 58 SNfactory 58 ChemCam 58 STEREO spacecraft 58 Fermi Telescope 58 detect gamma rays 58 HiRISE image 58 galactic cosmic ray 58 Astrophysics Cambridge Mass. 58 Cosmic Background Explorer COBE 58 stellar seismology 58 solar flares 58 Optical Gravitational Lensing Experiment 58 gamma ray bursts GRBs 58 Muchachos Observatory 58 cosmic ray particles 58 distant quasars 58 supernova explosion 58 gamma ray flashes 58 Mini SAR 58 Mauna Kea Hawaii 58 Subaru telescope 58 multiwavelength 58 Martian dust 58 nucleosynthesis 58 COROT 58 accretion disks 58 Reflection Radiometer 58 Interstellar Boundary Explorer 58 GLAST Burst Monitor 58 KBOs 58 comet McNaught 58 spectrographs 58 YORP effect 58 SDSS II 58 XMM Newton satellite 58 Milky Way halo 58 Moon Mineralogy Mapper M3 58 MiniBooNE 58 Heliospheric Observatory 58 Keck telescopes 58 bolometers 58 Oscillations 58 Bug Nebula 58 Tod Strohmayer 58 Hipparcos 58 planetary nebulae 58 gamma ray astronomy 58 Magnetic Imager HMI 58 radiometers 58 gamma ray bursts 58 Son Nghiem 58 RPWS 58 Type 1a supernovae 58 TRMM satellite 58 Science Experiment HiRISE 58 Uninhabited Aerial Vehicle 58 magnetic substorms 57 Dikpati 57 heliospheric 57 spiral nebulae 57 Gamma ray burst 57 multiband imaging photometer 57 blackbody 57 spectral measurements 57 Spectrometers 57 Cepheids 57 WISE telescope 57 Ozone Monitoring 57 optical telescopes 57 coronal holes 57 spectroscopic measurements 57 cosmic ray flux 57 NOAA GOES 57 Lunar Prospector 57 Katzman Automatic 57 Gamma ray bursts 57 particle acceleration 57 martian meteorites 57 Lunar Reconnaissance Orbiter Camera 57 UVIS 57 gravitational wave 57 Cometary 57 BLG #Lb 57 Comet Halley 57 Orionid 57 Explorer WISE 57 Corot 7b 57 NASA QuikScat satellite 57 ESO Very Large Telescope 57 Jupiter moon Io 57 NASA STEREO 57 Sounder AIRS instrument 57 Aurigid 57 Jupiter Ganymede 57 Faint Object 57 NuSTAR 57 Relativistic 57 journal Icarus 57 Observatoire de Paris 57 Adam Riess 57 interferometers 57 muon neutrino 57 DISR 57 NASA Cassini 57 Context Camera 57 optical interferometry 57 Vassilis Angelopoulos 57 cosmological observations 57 supersymmetric particles 57 attosecond 57 Planetary Fourier Spectrometer PFS 57 telescopic observations 57 ESO telescopes 57 Crab Pulsar 57 SINFONI 57 CMB radiation 57 radiotelescope 57 millimeter wavelength 57 Earth ionosphere 57 cosmic strings 57 inelastic scattering 57 Moon Mineralogy Mapper 57 radial velocity technique 57 extrasolar planetary 57 ultraviolet wavelengths 57 VIRTIS instrument 57 quasar 57 Kepler Mission 57 magnetars 57 energetic electrons 57 supernova SN 57 interstellar clouds 57 NASA Atmospheric Infrared 57 retrograde orbits 57 energetic gamma rays 57 D CIXS 57 meridional flow 57 exoplanets orbiting 57 tau neutrinos 57 Wide Angle Search 57 outer corona 57 orbited Jupiter 57 HESS telescopes 57 spatially resolved 57 Gamma ray Burst 57 Mini Thermal Emission 57 laser altimeter 57 astronomical objects 57 Dynamics Observatory 57 magnetar 57 electrons protons 57 astrometric 57 kaons 57 protoplanet 57 gravitational lensing 57 radiative transfer 57 X ray telescope 57 submillimeter 57 scanning tunneling microscopy 57 Extrasolar Planet Observation 57 quasiparticle 57 gamma ray photons 57 Hyakutake 57 gamma ray radiation 56 binary pulsar 56 Pancam 56 auroral emissions 56 aboard ESA Envisat 56 powder diffraction 56 THEMIS satellites 56 IBEX Lo 56 synthetic aperture 56 ESA Envisat satellite 56 Credits ESA 56 photometry 56 gamma ray detectors 56 X ray binaries 56 Cassini ion 56 Lunar Laser Ranging 56 Swift Burst 56 Solar Optical Telescope 56 Optical Telescope 56 gamma ray 56 Photoacoustic 56 luminosities 56 Anthony Remijan 56 Cepheid variables 56 Thermal Emission 56 Digitized Sky Survey 56 Advanced Microwave Scanning 56 OGLE TR #b 56 aurorae 56 GJ #b [002] 56 infrared spectra 56 Giovanni Cassini 56 Io Europa 56 NASA Landsat 56 supergiant star 56 infrared interferometry 56 moon Io 56 Spacewatch 56 DEEP2 56 Comet Hale Bopp 56 gravitational lenses 56 ionospheric 56 Adaptive Optics 56 G#.# +#.# 56 GRB #A 56 Bullet Cluster 56 Ocean Salinity SMOS 56 CoRoT 9b 56 spectroscopic technique 56 LORRI 56 Space Telescope 56 meteoritic material 56 coronal mass ejection 56 SN #D 56 gravitational waves 56 galaxy redshift 56 sunspot cluster 56 spectroscopic techniques 56 Mars CRISM 56 polaritons 56 SQUIDs 56 interferometer 56 coronal heating 56 exosphere 56 OMEGA instrument 56 Active Galactic Nuclei 56 BaBar experiment 56 spectrometric 56 Grillmair 56 submillimetre wavelengths 56 Extragalactic 56 stellar occultation 56 astrometry 56 Mercury magnetosphere 56 Astrophysical Research 56 exo planet 56 supernova remnants 56 THEMIS 56 laser spectroscopy 56 Submillimeter 56 High Resolution Imaging 56 emit X rays 56 magnetic monopole 56 proton proton collisions 56 Observatory LIGO 56 tau neutrino 56 THEMIS mission 56 Virgo Cluster 56 NASA MODIS 56 PSR B# +# 56 Earthlike planets 56 Ultraviolet Imaging Spectrograph UVIS 56 redshifts 56 LIGO 56 Mars Orbiter 56 celestial object 56 TrES 4 56 millisecond pulsar 56 gamma rays 56 Viking landers 56 sized planets orbiting 56 Carnegie Observatories 56 DZero 56 Higgs particle 56 elemental composition 56 Spitzer Space Telescope 56 optical wavelengths 56 Orbiter MRO 56 Moderate Resolution Imaging 56 protoplanetary disks 56 periodicities 56 Climate Experiment GRACE 56 millisecond pulsars 56 SPIRE instrument 56 Comet Encke 56 LAGEOS 56 COROT 7b 56 VISTA telescope 56 NIRCam 56 visit http:/saturn.jpl.nasa.gov 56 muon neutrinos 56 substorms 56 Compact Reconnaissance Imaging Spectrometer 56 Rosetta orbiter 56 absorbs photons 56 GLAST telescope 56 infrared spectrometers 56 Earth orbiting satellites 56 Hanny Voorwerp 56 MINOS 56 supercomputer simulations 56 X ray spectroscopy 56 JILA joint 56 Rayleigh scattering 56 AMSR E 56 mineralogical composition 56 Doppler measurements 56 submillimeter wavelengths 56 photoluminescence 56 relativistic jets 56 fainter objects 56 Dalcanton 56 cosmic rays 56 CALIPSO 56 Cepheid variable 56 NASA Infrared Telescope 56 Elenin 56 Comet Hartley 2 56 Kashlinsky 55 NASA Tropical Rainfall 55 X ray Spectrometer 55 COBE 55 Spectrometer 55 submillimeter wavelength 55 Laser Interferometer Space 55 neutrino oscillations 55 supernovae 55 auroral activity 55 supernova remnant 55 De Pontieu 55 lensing galaxy 55 infrared telescopes 55 Spitzer infrared spectrograph 55 MODIS instrument 55 orbiter Mars Odyssey 55 infall 55 active galactic nuclei 55 THEMIS spacecraft 55 Neutron Detector 55 Cosmologists 55 X ray spectra 55 La Silla observatory 55 Eta Carinae 55 Caltech astronomer 55 spectral characteristics 55 Red Rectangle 55 Credit NASA JPL 55 Svensmark 55 MG J# +# 55 exoplanet orbiting 55 proton antiproton 55 neutralino 55 spaceborne 55 isotopic ratios 55 novae 55 photoelectron spectroscopy 55 Lyrids 55 terrestrial gamma ray 55 Comet Lulin 55 MARSIS 55 Chandra X ray 55 Earth Asteroid 55 Mercury flyby 55 NanoSIMS 55 Martian meteorites 55 Type Ia supernovas 55 SWIFT J#.# 55 spectroscope 55 Carey Lisse 55 Mars Climate Sounder 55 geomagnetic storms 55 Space Physics 55 Alfven waves 55 CMEs 55 Carina constellation 55 sonoluminescence 55 Solar flares 55 Photometric 55 HII regions 55 Subaru Telescope 55 cosmic cannibal 55 rocky extrasolar planet 55 SSRL 55 femtosecond timescale 55 infrared imager 55 NASA Gamma ray 55 superluminal 55 SAXS 55 Astrophysicists 55 sundog 55 Tropospheric Emission Spectrometer 55 polarimeter 55 Tropical Rainfall Measuring 55 Upsilon Andromedae b 55 superstrings 55 infrared telescope 55 Attosecond 55 particle analyzers 55 planets orbiting distant 55 NASA Interstellar Boundary 55 helium atoms 55 THEMIS Image 55 cometary dust 55 electrons positrons 55 UCO Lick 55 Stanford Synchrotron Radiation Lightsource 55 electron ion 55 melt inclusions 55 Ultraviolet Imaging Spectrograph 55 C1XS 55 occulted 55 Cherenkov radiation 55 Astrophysicist 55 quasars 55 NFIRE satellite 55 Heliospheric 55 planet Gliese #g 55 WASP #b 55 CloudSat 55 Herschel Space 55 WM Keck Observatory 55 SNe Ia 55 distant galaxies 55 Mars Orbiter Camera 55 Coma Cluster 55 X ray Timing 55 Saturn aurora 55 cryovolcanism 55 pulsar 55 Deep Impact eXtended Investigation 55 Gliese #c 55 Cassini magnetometer instrument 55 X ray absorption spectroscopy 55 Gerard Kuiper 55 WFPC2 55 SIRTF 55 Planetary Science Institute 55 Helix Nebula 55 SN #E 55 orbiting observatories 55 La Silla Observatory 55 metallicity 55 zodiacal dust 55 Kuiper Belt Object 55 NEAs 55 Imaging Spectroradiometer MODIS instrument 55 redshift 55 UVES 55 lunar meteorites 55 Climate Experiment SORCE 55 magnetic anisotropy 55 XMM Newton X ray 55 ultraviolet spectrometer 55 ionised gas 55 microlensing 55 neutral mass spectrometer 55 UAVSAR 55 Uranus Neptune 55 nebular 55 IKAROS 55 gravitational perturbations 55 Pieter van Dokkum 55 Sunyaev 55 Ionospheric 55 Earth magnetosphere 55 Steward Observatory 55 comet flyby 55 circumstellar 55 astrophysical 55 axions 55 Shri Kulkarni 55 WFC3 54 planetary nebulas 54 STIS 54 Type Ic supernova 54 supersolid 54 Gas Chromatograph Mass Spectrometer 54 photoionization 54 Diviner instrument 54 Arizona Steward Observatory 54 gamma ray observatories 54 ejecta 54 linearly polarized 54 gradiometer 54 cosmic microwave background 54 cosmic ray protons 54 Raman scattering 54 SN#A 54 Trojan asteroids 54 Anisotropy 54 STScI 54 Alex Filippenko 54 crustal thickness 54 ESO astronomer 54 Cassini spacecraft orbiting 54 diffuse aurora 54 situ measurements 54 Swift Ultraviolet Optical 54 spectral fingerprint 54 Pioneer Anomaly 54 Omega Centauri 54 de Pater 54 extrasolar planets 54 Gravity Probe 54 elemental abundances 54 Resolution Stereo Camera 54 Corot 9b 54 binary quasar 54 Spectroradiometer 54 Beta Pictoris b 54 VLTI 54 dwarf spheroidal galaxies 54 Saturn auroras 54 supernova explosions 54 foreground galaxy 54 Hyperspectral 54 baryonic 54 Neil Gehrels 54 Manchester Jodrell Bank 54 CIRS 54 Extrasolar Planets 54 HM Cancri 54 axion 54 Cosmic Evolution 54 Hale Bopp 54 Nasa Jet Propulsion 54 helium ions 54 distant supernovas 54 JHU APL 54 fluorescence microscope 54 Wolszczan 54 Supernovae 54 planemos 54 CDMS experiment 54 Kuiper Belt object 54 WHIM 54 Mate Adamkovics 54 moons Phobos 54 radiometric measurements 54 microquasar 54 HiRISE camera 54 KAGUYA 54 masers 54 #P/Holmes 54 radial velocity measurements 54 AERONET 54 bosonic 54 KIPAC 54 Michael Studinger 54 ion collisions 54 FUV 54 neutron diffraction 54 Mewaldt 54 Interior Laboratory GRAIL 54 photochemical reactions 54 Toutatis 54 protons collide 54 ultrashort pulses 54 synchrotron x ray 54 diffraction patterns 54 Quadrantid meteor shower 54 mu Arae 54 transiting planets 54 brightnesses 54 astronomers 54 atmospheric aerosols 54 Imaging Spectroradiometer MODIS 54 gravitational interactions 54 GEO# 54 Alycia Weinberger 54 WIYN 54 Veil Nebula 54 #/#Z 54 quantum mechanically 54 Solar Observatory 54 electron microscopic 54 Saturn equinox 54 BP Psc 54 ESA Rosetta 54 Extreme Ultraviolet 54 astronomical observations 54 mesospheric 54 corona discharge 54 telescope atop Mauna 54 Solar Terrestrial Relations 54 Spitzer infrared 54 type 1a supernovae 54 interferogram 54 spectroscopy 54 Baryon 54 Meteoritics 54 particle physics experiments 54 SpaceWeather.com 54 hydroxyl molecules 54 volcanic plumes 54 graphite whiskers 54 optical spectra 54 merging galaxies 54 Cold Dark Matter 54 aerosol particles 54 ultraviolet radiation emitted 54 red supergiant 54 Infrared Atmospheric 54 Brownian particles 54 Epsilon Aurigae 54 sparticles 54 Gaensler 54 Roque de los 54 reflectometry 54 comets orbiting 54 atmospheric oceanic 54 Magnetosphere 54 synchrotron X ray 54 Mission SRTM 54 Collider Detector 54 spaceweather.com 54 Energetic Particle 54 Epsilon Eridani 54 Gemini telescopes 54 carbonyl sulfide 54 exhaust plume 54 sunlike stars 54 J# +# [002] 54 polar stratospheric 54 exoplanet atmospheres 54 Telescope Array 54 galaxy M# [002] 54 baryon 54 Sromovsky 54 Moderate Imaging Spectroradiometer 54 VHE gamma rays 54 planetary transits 54 Aram Chaos 54 elliptical galaxy NGC 54 Computer simulations 54 coronal mass ejections 54 Global Surveyor spacecraft 54 rotating neutron stars 54 Earth magnetotail 54 electron neutrino 54 UA Lunar 54 ultrahigh resolution 54 Near Infrared 54 helium nuclei 54 Antenna LISA 54 THEMIS Images 54 constellation Eridanus 54 convective clouds 54 NASA Orbiting Carbon 54 Mercury exosphere 54 Cat Paw Nebula 54 Extrasolar Planet 54 Advanced Spaceborne Thermal Emission 54 surface plasmons 54 Lunar CRater Observation 54 ejecta plume 54 inner Oort Cloud 54 Galactic cosmic rays 54 Voyager spacecraft 54 PSR J# 54 Seyfert galaxies 54 comet Hale Bopp 54 Resolution Imaging 54 NASA Aqua 53 magnetosphere 53 gravitationally lensed 53 George Djorgovski 53 asteroid Eros 53 multispectral 53 weakly interacting 53 Orbiter LRO 53 extrasolar planet 53 Hawking radiation 53 Doppler shifts 53 Climate Sounder 53 evanescent waves 53 moons orbiting 53 galactic mergers 53 Optical Spectroscopic 53 QQ# 53 Mission TRMM satellite 53 spectrometer 53 Very Large Array 53 Mojzsis 53 polar vortex 53 Crab Nebula 53 distant galaxy 53 jovian 53 Solar Terrestrial Physics 53 brown dwarfs 53 circular dichroism 53 Magellanic Clouds 53 cometary 53 lunar crust 53 Resolution Instrument 53 Credit ESO 53 Super Kamiokande 53 theoretical astrophysicist