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(Click for frequent words.) 61 ESO VLT 60 Gerard Kuiper 58 SEGUE 58 Edmund Halley 58 Pierre Simon Laplace 58 Grote Reber 58 ESA Herschel 58 NAOJ 58 UA Steward Observatory 57 Nima Arkani Hamed 57 Ellery Hale 57 planetary astronomy 57 National Astronomical Observatory 56 Tycho Brahe 56 Huchra 56 Halton Arp 56 Bohdan Paczynski 56 Steward Observatory 56 CfA 56 Richard Berendzen 56 Cosmic Background Explorer 55 inch refracting telescope 55 Gravitational lensing 55 Japan NAOJ 55 Fred Hoyle 55 Astrophysics Cambridge Mass. 55 STScI 55 Giovanni Cassini 55 Richard Binzel 55 KIPAC 55 Omega Centauri 55 Carl Friedrich Gauss 55 CFHT 54 astronomer Edmond Halley 54 SDSS II 54 Nicolas Copernicus 54 Neil DeGrasse Tyson 54 UCO Lick 54 Microlensing Observations 54 infrared astronomy 54 Lise Meitner 54 Alexander Kashlinsky 54 Tommaso Treu 54 Gravitational Physics 54 Nicolaus Copernicus 54 Wilkinson Microwave Anisotropy Probe 54 starburst galaxy 54 Owen Gingerich 54 COBE satellite 54 Stefanie Komossa 53 Observatoire de Paris 53 Karl Menten 53 Kuiper belt objects 53 La Silla observatory 53 George Gamow 53 Catherine Cesarsky 53 Astrophysicist 53 particle astrophysics 53 Richard Mushotzky 53 Jay Pasachoff 53 distant quasar 53 NASA Cosmic Background 53 Katlenburg Lindau Germany 53 Chris Lintott 53 exoplanetary 53 Astrophysical 53 Theodor Hänsch 53 Andrea Ghez 53 Franck Marchis 53 Charles Bailyn 53 eclipsing binary 53 observational astronomy 53 astronomer mathematician 53 Kepler Mission 53 Anisotropy Probe 53 distant supernovae 53 SN #A 53 Coma cluster 53 planetary Transits 53 Kevin Schawinski 52 MPIfR 52 GALEX 52 faint smudges 52 Hipparchus 52 Brian Swimme 52 Krimigis 52 Cosmic Microwave Background 52 Adam Riess 52 Rychard Bouwens 52 PSR B# +# 52 Andromeda galaxy 52 Henize #-# 52 Kip Thorne 52 Omega Nebula 52 Keck Interferometer 52 Crab Nebula 52 Gal Yam 52 Radioastronomy 52 astronomer Johannes Kepler 52 Wolfgang Brandner 52 Edwin Hubble 52 rocky extrasolar planet 52 globular cluster M# 52 Comet Halley 52 Eugene Wigner 52 Astrophysical Institute 52 Orion constellation 52 Submillimeter Array 52 Smithsonian astronomer 52 superstrings 52 Gregory Asner 52 Roger Penrose 52 constellation Coma Berenices 52 MEarth 52 Gell Mann 52 Neils Bohr 52 Wolszczan 51 Max Plank 51 Freie Universitaet Berlin 51 Triangulum Galaxy 51 AAVSO 51 LOFAR 51 extragalactic 51 Fermi telescope 51 Bruce Margon 51 Delta Cephei 51 Ghez 51 Lick Observatory 51 Filippenko 51 Ulf Leonhardt 51 Percival Lowell 51 galaxy M# [001] 51 Wolfgang Pauli 51 Astronomy Observatory 51 Nikku Madhusudhan 51 Rosette Nebula 51 Shri Kulkarni 51 Coel Hellier 51 Nathan Kaib 51 distant galaxy 51 Ring Nebula 51 Cosmic Evolution 51 astronomers 51 relativity theory 51 Carnegie Observatories 51 millisecond pulsar 51 Astrophysics MOA 51 Alessandro Morbidelli 51 Fundamental Physics 51 Nicolas Dauphas 51 Gaensler 51 HD# [002] 51 Exoplanets 51 Poincaré 51 ESO telescope 51 ASTRON 51 MINOS 51 Peter Grünberg 51 Saul Perlmutter 51 Murray Gell Mann 51 Freie Universität Berlin 51 heliocentric 51 Southern Observatory ESO 51 Michael Zolensky 51 astronomical telescopes 51 Allan Sandage 51 Lynn Margulis 51 Pieter van Dokkum 51 cosmological distances 51 Planck satellite 51 Galaxy Evolution 51 Carlos Frenk 51 galaxy M# [002] 51 NASA Interstellar Boundary 50 astrophysical phenomena 50 Milky Way halo 50 Active Galactic Nuclei 50 Papovich 50 RS Ophiuchi 50 MIT Haystack Observatory 50 NOAO 50 Lawrence Krauss 50 Arkani Hamed 50 Mark Changizi 50 Avishay Gal Yam 50 ESA XMM Newton 50 Stassun 50 astronomer Tycho Brahe 50 Dan Werthimer 50 Orion nebula 50 Theodore von Karman 50 optical coherence 50 Trapezium 50 Alex Filippenko 50 Nicholas Copernicus 50 Anthony Remijan 50 Niels Bohr 50 SSRL 50 interstellar cloud 50 barred spiral galaxy 50 distant quasars 50 spectroscopic observations 50 mathematician physicist 50 Lars Hernquist 50 ESA Integral 50 Solar TErrestrial RElations Observatory 50 Kazantzidis 50 Mullard Space Science 50 binary quasar 50 Dava Sobel 50 Thomas Harriot 50 Optical Gravitational Lensing Experiment 50 Lyot 50 Heinrich Hertz 50 exoplanet orbiting 50 inch refractor telescope 50 Reinhard Genzel 50 AKARI 50 Fritz Zwicky 50 JBS Haldane 50 Astrophysical Research 50 TrES 4 50 theoretical astrophysics 50 Maria Goeppert Mayer 50 Komossa 50 High Angular Resolution 50 physicist Max Planck 50 APEX telescope 50 Spectrograph 50 Chandra Wickramasinghe 50 Marchis 50 de Pater 50 zodiac constellations 50 Coma Cluster 50 Helix Nebula 50 Keck telescope 50 Hiroo Kanamori 50 coronal loops 50 Grillmair 50 Hermann von Helmholtz 50 Forschungszentrum Dresden Rossendorf FZD 50 Cygnus Lyra region 50 Wide Angle Search 50 ESO PR 50 Anisotropy Probe WMAP 50 Methone 50 Joel Primack 50 planetary astronomer 50 ALFALFA 50 Dumbbell Nebula 50 star clusters nebulae 50 Orion Nebula 50 celestial sphere 50 Cepheid variables 50 Telescope LSST 50 Cosmic Background Explorer COBE 50 galaxy NGC 50 planetary geology 50 Ferenc Krausz 50 Manchester Jodrell Bank 50 exo planets 50 Fritjof Capra 49 Beta Pictoris 49 Maria Zuber 49 nicknamed Xena 49 spiral nebulae 49 Peter Capak 49 WIYN telescope 49 Caltech physicist 49 Fermi Gamma ray 49 Peter Jenniskens 49 Leonard Susskind 49 asteroseismology 49 extrasolar 49 Meenakshi Wadhwa 49 astronomical observations 49 Red Rectangle 49 X ray observatories 49 Sara Seager 49 NASA Far Ultraviolet 49 Earths orbiting 49 SNfactory 49 planetary nebulae 49 Observatory LDEO 49 orbiting Chandra 49 Cosmological 49 Johny Setiawan 49 Theoretical physicist 49 constellation Carina 49 Edmond Halley 49 Great Observatories 49 Djorgovski 49 heliocentric model 49 Evolution Explorer 49 Pleiades cluster 49 celestial mechanics 49 Bethany Ehlmann 49 Jean Piaget 49 astrometry 49 Crab Pulsar 49 exo planet 49 WM Keck Observatory 49 Using ESO Very 49 NASA Heliophysics 49 Jacques Laskar 49 Brother Guy Consolmagno 49 Deep Impact Principal Investigator 49 X ray observatory 49 du Sautoy 49 Kurt Godel 49 Super Kamiokande 49 Francis Galton 49 ESA Planck 49 Kuiper Belt Objects 49 Comet Holmes 49 supernova SN 49 Subrahmanyan Chandrasekhar 49 Area Telescope LAT 49 astrophysical 49 Ilya Prigogine 49 V# Mon 49 Nial Tanvir 49 Max Tegmark 49 Upsilon Andromedae 49 NASA Goddard 49 e MERLIN 49 cosmic strings 49 Small Magellanic Cloud 49 Hans Deeg 49 CSIRO Parkes radio 49 Laser Interferometer Gravitational Wave 49 XMM Newton 49 reflection nebula 49 INAF IASF 49 nebular 49 Alfred Wegener 49 exoplanets orbiting 49 ROSAT 49 ESO Paranal Observatory 49 circumstellar disks 49 AB Aurigae 49 Dobsonian telescope 49 Voorwerp 49 theoretical astrophysicist 49 Kenneth Libbrecht 49 JCMT 49 protoplanetary disks 49 astronomy 49 constellation Ursa Major 49 Federico Capasso 49 Benoit Mandelbrot 49 Gondolo 49 Microlensing Follow Up 49 Veil Nebula 49 active galactic nuclei 49 Sasselov 49 Ellen Stofan 49 Earthscope 49 extrasolar planetary systems 49 Avi Loeb 48 Jenniskens 48 Pasachoff 48 Hale Bopp 48 Richard Feynman 48 Virgo cluster 48 Lee Smolin 48 spiral galaxy Messier 48 Guhathakurta 48 gravitational lenses 48 astronomer 48 RY Sagittarii 48 microlensing events 48 Norbert Wiener 48 WMAP satellite 48 blackbody radiation 48 Sky Survey SDSS 48 Observatory astronomer 48 Astrophysicists 48 WMAP 48 HZB 48 Wolfgang Ketterle 48 Nobel laureate physicist 48 René Descartes 48 astronomy observatory 48 Perseus Cluster 48 Max Planck Institut für 48 fainter objects 48 SPIRE 48 Muchachos Observatory 48 astronomer Nicolaus Copernicus 48 physicist mathematician 48 Cosmologist 48 Dmitri Tymoczko 48 supersymmetric 48 Nadrian Seeman 48 UA Lunar 48 ESO Very Large Telescope 48 Alycia Weinberger 48 Keck Observatory 48 Exoplanet 48 inhabitable planets 48 dwarf galaxy 48 Popular Astronomy 48 Hot Jupiters 48 Jay Melosh 48 Cepheids 48 HD#b 48 outermost planets 48 Mauna Kea Hawaii 48 HARPS instrument 48 earthshine 48 Type 1a supernovae 48 Eagle Nebula 48 Giacconi 48 transiting exoplanets 48 Giovanna Tinetti 48 Sushil Atreya 48 Foing 48 Dalcanton 48 Nobel Prizewinning 48 imaging spectrometer 48 Dorothy Hodgkin 48 renowned theoretical physicist 48 Fornax cluster 48 X ray telescopes 48 Beichman 48 cluster NGC 48 Array ALMA 48 Adaptive Optics 48 blazars 48 Caltech astronomer 48 occulted 48 quantum astrophysicist 48 Bernard Foing 48 Hubble Space Telescope HST 48 planetary nebulas 48 Erlangen Nürnberg 48 Horsehead Nebula 48 Bonnie Buratti 48 Relativistic 48 Alaska Fairbanks Geophysical 48 P/# A2 48 Kitt Peak 48 Andromeda Galaxy 48 AGNs 48 Paul Dirac 48 telescope 48 Caltech 48 Virgo Cluster 48 Gmachl 48 IYA# 48 Mary Voytek 48 Max Delbrück 48 Robert Jedicke 48 Woese 48 galaxy Andromeda 48 KBOs 48 Hanny Voorwerp 48 intrinsic brightness 48 Rainer Klement 48 constellation Cassiopeia 48 Kailash Sahu 48 HUDF 48 Max Planck Institut fur 48 MicroFUN 48 astronomical telescope 48 Pisgah Astronomical Research 48 Epsilon Aurigae 48 Hans Bethe 48 DEEP2 48 Oscillations 48 neutrino physics 48 Mini Thermal Emission 48 constellation Sagittarius 48 Gregory Benford 48 occultations 48 Convection Rotation 48 planet Uranus 48 Geminga 48 Technische Universitaet Muenchen 48 surface plasmon polariton 47 atmospheric neutrinos 47 Ray Jayawardhana 47 Nergis Mavalvala 47 trans Neptunian objects 47 UC Observatories Lick 47 sedimentary geology 47 Geza Gyuk 47 theoretical physicist Stephen Hawking 47 galaxies 47 Epsilon Eridani 47 Georges Cuvier 47 Project Ozma 47 Solar System 47 Glaciologist 47 Magellanic Clouds 47 astrophysicists 47 journal Monthly Notices 47 Piero Rosati 47 orbiting gamma ray 47 Io Europa 47 Istituto Nazionale di Astrofisica 47 lensing galaxy 47 Guillermo Haro 47 journal Icarus 47 mu Arae 47 VISTA telescope 47 Claude Lévi Strauss 47 Credits ESA 47 cosmologist 47 NASA THEMIS 47 refracting telescope 47 Robert Hooke 47 Helmholtz Zentrum Berlin 47 Mount Stromlo Observatory 47 superstring theory 47 Galileo spacecraft 47 Milky Way Galaxy 47 PSR J# 47 Jean Pierre Bibring 47 Democritus 47 quantum electrodynamics 47 Galileoscope 47 Space Telescope 47 ASKAP 47 Diviner 47 Arizona Steward Observatory 47 KamLAND 47 quasars 47 Spaceguard 47 stellar occultation 47 Emily Lakdawalla 47 Tegmark 47 Space Physics 47 Astronomy 47 NASA Exobiology 47 physicists 47 faintest galaxies 47 von Humboldt 47 CALTECH 47 Cristina Chiappini 47 Bruno Latour 47 Benny Peiser 47 RS Oph 47 Fairen 47 Jayant Narlikar 47 Aryabhatta 47 Earth Asteroid 47 Explorer WISE 47 Storrie Lombardi 47 PlanetQuest 47 Lowell Observatory 47 Saturn innermost 47 Fermi LAT 47 geomagnetism 47 Comet #P 47 exoplanets planets 47 Kuiper Belt Object 47 Ecole Normale Supérieure 47 Camelopardalis 47 Lulin Observatory 47 Lamont Doherty 47 planets moons 47 planet Gliese #g 47 Pluto Charon 47 Planetary Laboratory 47 Exobiology 47 Basque Country UPV EHU 47 Dominique Cassini 47 Hod Lipson 47 Observatory NOAO 47 type Ia supernovae 47 millimeter wavelengths 47 Lev Landau 47 Bill Borucki Kepler 47 moons circling 47 Uwe Bergmann 47 preprint server 47 redshift 47 Arno Penzias 47 Planetary Science Institute 47 ESA Cluster 47 Albert Fert 47 NOAO AURA NSF 47 planets comets 47 particle physicists 47 Margaret Murnane 47 retrograde orbit 47 TW Hydrae 47 novas 47 submillimetre 47 RHESSI 47 UKIRT 47 Martian meteorites 47 constellation Centaurus 47 Yerkes Observatory 47 star Beta Pictoris 47 Johannes Kepler 47 NASA Wilkinson Microwave 47 cosmological 47 brightest supernova 47 Alan Sokal 47 Observatories 47 astrometric 47 D CIXS 47 ASPERA 47 armillary sphere 47 Maxwell equations 47 Meteoritics 47 Haystack Observatory 47 Charpak 47 Quaoar 47 Gnedin 47 Palomar Observatory 47 Fran Bagenal 47 Bug Nebula 47 Copernicus Galileo 47 John Flamsteed 47 SN#A 47 Tarantula Nebula 47 supergiant star 47 SDSS III 47 Peru Geophysics 47 AU Mic 47 Earthshine 47 Villigen Switzerland 47 supersymmetric particles 47 Extraterrestrial Physics 47 constellation Eridanus 47 Michael Studinger 47 interstellar dust clouds 47 Paranal Chile 47 galaxy 47 Explorer IBEX 47 DESY 47 Nobel Laureate Prof. 47 Harvard Smithsonian CfA 47 Charles Babbage 47 Veizer 47 proplyds 47 Giuseppe Piccioni 47 celestial phenomena 47 Clausthal 47 inch Samuel Oschin 47 theoretical cosmology 47 Landsat satellite 47 archaeo 47 Hubble Telescope 47 Kavli Institute 47 VIRTIS instrument 47 spinels 47 Kavli Prize 46 Vygotsky 46 Andrei Linde 46 Magnetars 46 galaxy cluster 46 Kuchner 46 globular clusters 46 Spitzer Space Telescope 46 MMT Observatory 46 JPL Caltech 46 Milky Way 46 NYU Courant 46 mathematician astronomer 46 Szilard 46 Near Infrared Camera 46 astrophysical objects 46 Newton Principia 46 observable universe 46 microlensing 46 Christopher Chyba 46 Svante Pääbo 46 Enrico Fermi Institute 46 gravitationally lensed 46 Heliospheric Investigation 46 Schroedinger 46 Duari 46 exobiology 46 DISR 46 Gehrz 46 OGLE TR 46 Joseph Fourier 46 Planetary Transits 46 mathematician Pythagoras 46 NASA WMAP 46 Albert Laszlo Barabasi 46 filamentary structure 46 Type Ia supernovae 46 RXTE 46 Science Popularisation Association 46 Pinwheel Galaxy 46 Arecibo Observatory 46 Planetology 46 astronomy astrophysics 46 particle detectors 46 jovian 46 Charles Beichman 46 elliptical galaxy NGC 46 Saturn Enceladus 46 WM Keck 46 Planetary Lab 46 Hubble observations 46 Magnetic Imager 46 Herschel telescope 46 Renu Malhotra 46 gravitational perturbations 46 Leon Lederman 46 Lewis Dartnell 46 Scheeres 46 ESO astronomer 46 earthlike planets 46 nebula NGC 46 spherical halo 46 Nobel Prizewinner 46 Carl Woese 46 Louis Agassiz 46 Polish astronomer Nicolaus 46 WASP #b 46 NASA STEREO 46 ray Space Telescope 46 Solar Observatory 46 Institut d' Astrophysique de 46 Uranian 46 Neil Turok 46 Leo Szilard 46 Butterfly Nebula 46 Evolutionary Anthropology Leipzig 46 Ultraviolet Imaging Spectrograph UVIS 46 Maunder minimum 46 globular cluster 46 telescopes 46 inch refractor 46 Leeuwenhoek 46 Chicago Adler Planetarium 46 van Arkel discovery 46 Theoretical physicists 46 astronomer Galileo Galilei 46 photometry 46 ETH Zurich Switzerland 46 La Silla Observatory 46 proto galaxies 46 dust enshrouded 46 mathematical physicist 46 Marcus du Sautoy 46 Galileo Galilei 46 Meg Urry 46 Peony nebula star 46 Werthimer 46 BLG #Lb 46 planets orbiting 46 COROT 46 Kostya Novoselov 46 Psycholinguistics 46 Daniel Patnaude 46 Robin Canup 46 Mini SAR 46 intracluster 46 Pleiades 46 astrophysics 46 Brera Observatory 46 Subaru Telescope 46 spectroscopically 46 Cat Paw Nebula 46 AMNH 46 zodiacal dust 46 Neil deGrasse Tyson 46 Capak 46 cosmic ray physics 46 ESO 46 Eta Carinae 46 Clyde Tombaugh discovered 46 Shoucheng Zhang 46 COBE 46 Infrared Array Camera 46 Rudolf Grimm 46 cosmic magnifying glass 46 J# +# [002] 46 cosmology 46 Robert Trivers 46 NuSTAR 46 Shing Tung Yau 46 Schawinski 46 Chunlei Guo 46 WIYN 46 optical wavelengths 46 astrophysicist 46 millisecond pulsars 46 Carle Pieters 46 Niels Bohr Institute 46 Massimo Marengo 46 Toutatis 46 Irving Langmuir 46 Natalie Batalha 46 NASA JPL 46 spacecraft flyby 46 Experimental Physics 46 NASA Chandra 46 Emile Durkheim 46 Gerhard Neukum 46 Parpola 46 CoRoT satellite 46 Frank Bertoldi 46 outer planets 46 Carlo Pedretti 46 Auger Observatory 46 Spudis 46 astro physicist 46 lunar craters 46 Leverhulme Trust 46 EVLA 46 Wilkinson Microwave Probe 46 S/# P2 46 radiotelescope 46 Christophe Lovis 46 submillimetre wavelengths 46 Moon Mineralogy Mapper M3 46 CHARA 46 professors emeriti 46 CSICOP 46 VLBI 46 #gy 46 Rolf Kudritzki 46 Milky Way galaxy 46 Interferometer 46 Keck Telescopes 46 exoplanet hunter 46 Mars CRISM 46 Ehrsson 46 HD# [005] 46 Aryabhata 46 Himiko 46 Henri Poincaré 46 submillimeter wavelengths 46 supermassive 46 Carl Sagan 46 École Normale Supérieure 45 NIST JILA 45 Jedicke 45 Rainer Blatt 45 Rössler 45 Peidong Yang 45 Claudius Ptolemy 45 gamma ray observatory 45 Feynman Prize 45 KH #D 45 astronomical observatories 45 Astronomie 45 Rogier Windhorst 45 Balzan Prize 45 hadron 45 philosopher mathematician 45 William Baumol 45 Biomolecular Medicine 45 Oskar Morgenstern 45 Galileo Copernicus 45 Stellarium 45 Douglas Engelbart 45 Trifid 45 X ray wavelengths 45 GJ #b [001] 45 Alberto Saal 45 Herschel Space 45 planets 45 planets orbiting sun 45 Yusef Zadeh 45 geochronology 45 Pluto Eris 45 Dante Lauretta 45 NASA Jet Propulsion Lab 45 Bryan Gaensler 45 Rayleigh scattering 45 Carina Nebula 45 Max Planck Institut fuer 45 Dark Cosmology 45 MIT planetary scientist 45 De Pontieu 45 Hubble telescope 45 Nicholas Kurti 45 Paranal 45 spiral galaxy NGC 45 Giovanni Picardi 45 Budker 45 Lev Vygotsky 45 ETH Zürich 45 Thermal Emission Spectrometer 45 Parapsychology 45 CalTech 45 Charon Pluto 45 Physics Letters 45 Physics Applied Physics 45 Centre d' Etudes 45 Giovanni Schiaparelli 45 SETI Search 45 retrograde orbits 45 Galileo telescope 45 Wales Aberystwyth 45 Lunar Exploration 45 cosmologists 45 Fermi Telescope 45 Anton Zeilinger 45 Relations Observatory STEREO 45 Marx Freud 45 Magueijo 45 IRC +# 45 UDFy # 45 Mössbauer 45 observatory telescope 45 Nir Shaviv 45 optical spectra 45 ESO telescopes 45 Majorana 45 LUCIFER 45 Atacama Large Millimeter submillimeter 45 Helioseismic 45 nanomechanics 45 Compact Array 45 Harvard Smithsonian Astrophysical 45 Didier Sornette 45 Max Planck Institute 45 synchrotrons 45 Galilean moons 45 supernovae 45 Theoretical Astrophysics 45 Particle Accelerator 45 Cabrol 45 Hubble Near Infrared 45 moons orbiting 45 radial velocity technique 45 Cees Dekker 45 VIRTIS 45 Lagoon Nebula 45 Saturn rings 45 Tinbergen 45 Hubert Curien 45 Niles Eldredge 45 VY Canis Majoris 45 Grenoble Observatory 45 Extrasolar Planets 45 NASA Astrobiology 45 Paranal Observatory 45 OGLE 45 Corot 45 scanning tunneling microscope 45 Herzberg Institute 45 Erwin Schrodinger 45 Cosmological Physics 45 physics astronomy 45 Anne Verbiscer 45 cosmic microwave background 45 polar mesospheric clouds 45 Credit ESO 45 de Gennes 45 supernova remnants 45 Astronomer 45 Giant Magellan Telescope 45 Keivan Stassun 45 Saturnian system 45 Meghnad Saha 45 astronomer Edwin 45 Sunyaev 45 Geophysical Sciences 45 David Spergel 45 Toshiyuki Nakagaki 45 Hans Moravec 45 noctilucent clouds 45 Fraunhofer IFF 45 Gregor Mendel 45 Comet Elenin 45 astrophysical sciences 45 Shanghai Astronomical Observatory 45 galaxies nebulae 45 orbital resonance 45 supramolecular chemistry 45 Submillimeter 45 de Duve 45 Digitized Sky Survey 45 Physics Astronomy 45 Michelson Morley 45 Cometary 45 Cassini Imaging 45 HIFI 45 Spectroscopic Explorer 45 cosmological observations 45 Postdoctoral Researcher 45 Ramon Arrowsmith 45 StarDate 45 Henri Becquerel 45 Uranus Neptune 45 sunlike stars 45 Einstein 45 Stanislas Dehaene 45 Cerro Paranal 45 Einstein theory 45 martian meteorites 45 interferometry 45 IceCube telescope 45 Pierre Drossart 45 Mendeleev 45 Don Eigler