Related by context. Frequent words. (Click for all words.) 68 WM Keck Observatory 59 ESO Very Large Telescope 57 NASA Chandra 56 Very Large Telescope 54 XMM Newton 53 Astrophysics 53 adaptive optics 53 Lowell Observatory 53 infrared telescope 53 optical telescope 53 CloudSat 53 astronomers 52 Spitzer Space Telescope 52 telescopes 52 Telescope 52 spectroscopic 52 Astrophysical Journal 52 telescope 52 Smithsonian Astrophysical Observatory 51 planetary scientist 51 THEMIS 51 NASA Cassini spacecraft 51 scanning electron microscope 50 optical telescopes 50 LIGO 50 IceCube 50 observatories 50 JILA 50 interferometer 50 HiRISE 50 WMAP 49 Observatories 49 NASA Goddard 49 MODIS 49 Astrophysical Journal Letters 49 multispectral 49 astrophysicists 49 WHOI 49 Earth Observatory 49 ESO 49 X ray Observatory 49 Planetary Laboratory 48 transmission electron microscope 48 astronomical observations 48 Technology Caltech 48 Radio Astronomy Observatory 48 NASA Aqua 48 Kavli Institute 48 Harvard Smithsonian 47 interferometry 47 X ray emission 47 Scripps Institution 47 postdoctoral researcher 47 astronomer 47 exoplanet 47 NASA Astrobiology Institute 47 Chandra X ray 46 Spectrometer 46 Space Telescope 46 quasars 46 astrophysics 46 seismometers 46 redshift 46 Astronomy 46 LLNL 46 extrasolar planet 46 gravitational lensing 46 planet orbiting 46 gamma ray burst 46 extrasolar planets 46 infrared spectrometer 45 distant galaxy 45 British Antarctic Survey 45 NASA Ames 45 Woods Hole Oceanographic 45 Cassini 45 Hubble Space Telescope 45 HD #b [002] 45 spectrograph 45 GNS Science 45 orbiting telescope 45 galaxy cluster 45 seismographs 45 geophysicists 45 cosmic ray 45 journal Geophysical Research 45 Berkeley Lab 45 distant galaxies 45 LRO 45 NASA Mars Odyssey 45 dwarf galaxy 45 gravitational waves 45 EMBL 44 LSST 44 NASA Mars Reconnaissance 44 optical microscope 44 Astrobiology 44 Cassini imaging 44 synchrotron 44 Applied Physics Laboratory 44 NASA JPL