Related by context. Frequent words. (Click for all words.) 65 HARPS 63 ESO Very Large Telescope 63 Very Large Telescope 58 Spectrometer 57 COROT 56 OGLE 54 microlensing 54 XMM Newton 54 Spitzer Space Telescope 53 La Silla Chile 52 European Synchrotron Radiation 52 Mini SAR 52 WM Keck Observatory 51 NASA Kepler 51 Galaxy Evolution 51 Keck Observatory 51 extrasolar planet 50 extrasolar planets 50 ExoMars 50 astronomers 50 OSIRIS 49 NASA Cassini 49 particle detector 49 Gemini Observatory 49 infrared spectrometer 49 spectroscopic 49 Hubble observations 49 MARSIS 49 NASA Chandra 48 exoplanets 48 planets orbiting 48 terrestrial planets 48 Lutetia 48 journal Astronomy 48 Cassini Huygens 48 X ray Observatory 47 spectrometers 47 star Gliese 47 rocky planets 47 super Earths 47 CALIPSO 47 Cassini orbiter 47 Large Magellanic Cloud 47 NASA Cassini spacecraft 47 planet orbiting 47 infrared telescope 47 CfA 46 planetary nebulae 46 NASA ESA Hubble 46 telescopes 46 Gamma Ray 46 Quantum Optics 46 spectrometer 46 spacecraft orbiting 46 Very Large Array 46 interferometry 46 transmission electron microscope 46 hyperspectral 46 microscopic imager 45 CRISM 45 Astrophysicists 45 exoplanet 45 telescope 45 interferometer 45 SMOS 45 planets circling 45 thermal emission spectrometer 45 Space Telescope 45 radiometer 45 Resolution Imaging 45 gravitational lensing 45 Jupiter moons 45 Astronomers 45 GOCE 45 NASA Aqua 44 gravitational wave 44 astrophysicists 44 ESRF 44 Cancri 44 Pan STARRS 44 infrared mapping spectrometer 44 HD #b [002] 44 spectroscopy 44 optical telescopes 44 Saturn moon Enceladus 44 redshifts 44 Credit NASA JPL 44 Spectroscopy 44 globular cluster 44 scanning electron microscope 44 habitable zones 44 Deimos 44 Astrophysical Journal 44 orbiting Saturn 44 Arecibo Observatory 44 WFC3 44 brown dwarfs 44 Solar Dynamics 44 X ray telescope 43 Palomar Observatory 43 CloudSat