Related by context. Frequent words. (Click for all words.) 63 NICMOS 63 XMM Newton 61 X ray emission 60 infrared radiation 59 interferometry 59 infrared wavelengths 59 interferometer 58 spectroscopic 58 quasar 58 infrared 58 Very Large Telescope 58 Mimas 58 COROT 57 Fomalhaut 57 ESO Very Large Telescope 57 celestial object 57 distant galaxy 57 planets orbiting 56 spectrometer 56 optical microscopy 56 X ray telescope 56 wavefront 56 spectra 56 accretion disk 56 auroral 56 ionized gas 56 infrared spectrometer 56 reflectance 56 adaptive optics 56 HD #b [002] 55 supernova remnant 55 quasars 55 microlensing 55 extrasolar planet 55 extrasolar planets 55 gravitational lensing 55 spiral galaxies 55 Spectrometer 55 infrared rays 55 photodetector 54 CCD camera 54 Spitzer Space Telescope 54 magnetar 54 astronomical objects 54 spectrometers 54 redshift 54 brown dwarf 54 unaided eye 54 X ray Observatory 54 astronomers 54 ejecta 54 Earth magnetosphere 54 starlight 54 Orion Nebula 54 optical microscope 54 photonic crystal 54 photometric 54 scanning tunneling microscope 54 nebulae 54 comet nucleus 54 telescope 54 radiative 54 ultraviolet 53 NASA Cassini spacecraft 53 dwarf galaxy 53 confocal microscopy 53 Crab Nebula 53 galaxy cluster 53 dwarf galaxies 53 anisotropic 53 brown dwarfs 53 OGLE 53 optical telescopes 53 spectroscopy 53 planet orbiting 53 telescopes 53 parallax 52 Saturn rings 52 gamma ray 52 astronomical observations 52 Large Magellanic Cloud 52 transmission electron microscopy 52 confocal 52 Resolution Imaging 52 OSIRIS 52 laser pulses 52 spiral galaxy 52 anisotropy 52 multispectral 52 NASA Chandra 52 HRSC 52 Eta Carinae 52 gravitationally 52 Phobos 52 WIMPs 52 diffraction 52 planet orbits 52 wavelengths 52 magnetic fields 52 gamma rays 52 interstellar dust