Related by context. Frequent words. (Click for all words.) 62 infrared mapping spectrometer 59 NASA Goddard 58 CloudSat 57 NASA ESA Hubble 57 CALIPSO 56 WFC3 56 multispectral 56 SMOS 56 interplanetary spacecraft 55 MESSENGER 54 Applied Physics Laboratory 54 Arecibo Observatory 54 HiRISE 54 radar altimeter 54 THEMIS 54 NASA Cassini spacecraft 53 Hubble observations 53 Webb Telescope 53 IceCube 53 Planetary Laboratory 53 LASP 53 CfA 53 XMM Newton 53 CRISM 53 Credit NASA JPL 52 Cassini 52 Gemini Observatory 52 adaptive optics 52 COROT 52 ESO Very Large Telescope 52 NASA JPL 52 astronomical observations 52 Keck Observatory 52 Envisat 52 EPOXI 52 Smithsonian Astrophysical Observatory 51 SPIRE 51 Gravity Probe B 51 spectroscopic 51 HRSC 51 interferometer 51 LCLS 51 OSIRIS 51 ESOC 51 Spectrometer 51 MBARI 51 CIRS 51 NASA Lunar Reconnaissance 51 MARSIS 51 neutron scattering 51 orbiting telescope 51 MODIS 51 Cassini spacecraft 51 interferometry 51 Cassini Huygens 50 telescope 50 hyperspectral 50 attosecond 50 NASA Cassini 50 JWST 50 optical microscopy 50 ICESat 50 infrared imagery 50 radiometer 50 confocal 50 STEREO 49 GLAST 49 microscopic imager 49 Galaxy Evolution 49 Cassini orbiter 49 Remote sensing 49 X ray telescope 49 GOCE 49 solar corona 49 Mars Reconnaissance Orbiter 49 Resolution Imaging 49 particle detector 49 infrared spectrometer 49 transmission electron microscope 49 scanning electron microscope 49 comet nucleus 49 gravitational wave 49 polar orbiting 49 spacecraft orbiting 49 astronomical objects 49 optical telescope 49 reconnaissance satellites 49 Chandra X ray 48 Saturn rings 48 astronomers 48 TRMM 48 multi spectral 48 Huygens 48 telescopes 48 CCD camera 48 Alfred McEwen 48 LRO 48 synthetic aperture radar 48 MAVEN 48 Pan STARRS 48 Nuclear Magnetic Resonance