Related by context. Frequent words. (Click for all words.) 51 COROT 49 CfA 48 ESO Very Large Telescope 47 solar corona 47 interferometer 47 XMM Newton 47 interferometric 46 Mauna Kea Hawaii 46 planet orbiting 46 spectrographs 46 ESRF 46 Galileo spacecraft 45 Ecole Polytechnique Federale de 45 CRISM 45 aerosol particles 45 STScI 45 Southern Observatory ESO 45 Spectrometer 44 Hubble observations 44 Eta Carinae 44 NASA Aqua 44 radiometer 44 Figer 44 infrared mapping spectrometer 44 Keck Observatory 44 MARSIS 43 Filippenko 43 Very Large Telescope 43 Astrophysicists 43 Astrophysicist 43 Galaxy Evolution 42 auroral 42 NASA Goddard 42 Cassini imaging 42 La Silla Chile 42 Cepheids 42 Cassini radar 42 Lisse 42 Garching Germany 42 Astrophysics 42 silicates 41 Earthlike 41 mid latitudes 41 solar irradiance 41 Hinode 41 planetary scientist 41 infrared spectroscopy 41 transmission electron microscopy 41 Gehrels 41 Observatories 41 National Astronomical Observatory 41 Planetary Science Institute 41 ionospheric 41 CIRS 41 redshift 41 WM Keck Observatory 41 Tropical Rainfall Measuring 41 visible wavelengths 41 WMAP 41 Computer simulations 40 Udry 40 Andromeda Galaxy 40 HD #b [002] 40 gravitational lensing 40 Lick Observatory 40 astrophysicists 40 Envisat 40 Nasa Jet Propulsion 39 isotope ratios 39 CALIPSO 39 gamma ray burst 39 Rignot 39 NASA Cassini 39 Carolyn Porco 39 astronomical observations 39 X ray Observatory 39 oxygen isotopes 39 Astrophysics CfA 39 DESY 39 spherules 39 astrophysical 39 astronomers 39 Astronomers 39 optical telescope 38 VLBI 38 Niels Bohr Institute 38 astronomer 38 interplanetary spacecraft 38 Observatory 38 Cassini scientist 38 positron 38 colliders 38 particle detector 38 Alfred McEwen 38 Edwin Hubble 38 Des Marais 38 Pasachoff 38 Credit NASA JPL 38 optical telescopes 38 infrared spectrometer 38 polar caps