Related by context. Frequent words. (Click for all words.) 61 radial velocity 61 WM Keck Observatory 60 star Gliese 60 ESO Very Large Telescope 60 Very Large Telescope 59 optical telescopes 59 La Silla Chile 59 Mauna Kea Hawaii 58 photometer 57 microlensing 57 redshifts 57 planet orbits 57 infrared wavelengths 57 particle detector 56 redshift 56 photometry 56 Spitzer Space Telescope 56 spectroscopic 56 gravitational lensing 56 visible wavelengths 56 distant galaxy 56 Cancri 55 optical telescope 55 active galactic nuclei 55 planets circling 55 extrasolar planets 55 interferometry 54 COROT 54 HD #b [002] 54 XMM Newton 54 adaptive optics 54 planets orbiting 54 Keck Observatory 54 shorter wavelengths 54 Thermal Emission Imaging 54 Lick Observatory 54 spacecraft orbiting 54 telescopes 54 infrared telescope 54 distant galaxies 53 astronomical objects 53 extrasolar planet 53 NASA Chandra 53 Hubble observations 53 galaxy cluster 53 solar corona 53 Palomar Observatory 53 NASA Kepler 52 exoplanets 52 diffractive 52 keV 52 Very Large Array 52 infrared mapping spectrometer 52 supernova remnant 52 multispectral 52 orbiting Saturn 52 Milky Way Galaxy 52 frequency comb 52 unaided eye 52 planet orbiting 52 Andromeda galaxy 52 asteroid Itokawa 52 Orion Nebula 52 photometric 52 NASA Mars Reconnaissance 52 GRBs 52 NASA Cassini spacecraft 52 WFC3 52 interferometer 52 Mini SAR 52 elliptical galaxies 52 optical microscope 51 optical microscopy 51 radar altimeter 51 interplanetary spacecraft 51 quasars 51 Martian equator 51 attosecond 51 GeV 51 Eta Carinae 51 celestial objects 51 scanning tunneling microscope 51 Moderate Resolution 51 exoplanet 51 Chandra X ray 51 gravitational wave 51 Kepler telescope 51 CALIPSO 51 Saturn moon Enceladus 51 GRB # 51 Resolution Imaging 51 comet nucleus 51 THEMIS 51 parallax 51 Cassini Huygens 51 Spectrometer 50 astronomers 50 observatories 50 X ray Observatory 50 super Earths 50 moon Charon