Related by context. Frequent words. (Click for all words.) 63 interplanetary spacecraft 63 GALEX 62 Synthetic Aperture Radar 62 ESA XMM Newton 61 X ray telescopes 60 laser altimeter 60 infrared telescopes 60 ray Space Telescope 60 scanning electron microscopes 59 imaging spectrometer 59 interferometric 59 credit NASA JPL 59 Interferometer 59 Subaru Telescope 59 Spectrometers 58 National Astronomical Observatory 58 force microscopy AFM 58 spacecraft orbiting 58 multibeam 57 atop Mauna Kea 57 Heliospheric Observatory SOHO 57 Spectroscopic 57 Keck telescope 57 Science Experiment HiRISE 57 interferometers 56 Credits ESA 56 NASA Cassini 56 scanning electron microscope SEM 56 Moon Mineralogy Mapper 56 situ measurements 56 coronagraph 56 spectrographs 56 Mauna Kea Hawaii 56 HiRISE camera 56 Magnetometer 56 X ray telescope 55 Keck Observatory 55 Credit NASA JPL 55 Herschel Space 55 spectral imaging 55 Gamma ray 55 astronomical observatories 55 Pancam 55 photometer 54 Remote sensing 54 Mars Reconnaissance Orbiter MRO 54 Surveys ACS 54 Magnetic resonance 54 penetrating radar 54 distant quasars 54 JPL manages 54 VLBI 54 opto mechanical 54 robotic rovers 54 VIRTIS 54 STEREO spacecraft 54 tomographic 54 solar corona 54 radiometer 54 electromagnetic EM 54 Hinode 54 Steward Observatory 54 Exoplanet 54 infrared telescope 54 WM Keck Observatory 54 Wilkinson Microwave Anisotropy Probe 54 Earth orbiting satellites 53 Lunar Reconnaissance Orbiter LRO 53 microscopic imager 53 Mars Surveyor Operations 53 transmission electron microscopes 53 NASA Infrared Telescope 53 CALIPSO 53 ultracold atoms 53 X ray detector 53 interferometry 53 scanning tunneling microscopy 53 spaceborne 53 Galaxy Evolution 53 Viking landers 53 optical biosensors 53 Radiometric 53 panchromatic 53 DISR 53 Mars Orbiter 53 Suzaku 53 gravitational microlensing 53 photon counting 52 transmission electron microscope 52 X ray fluorescence 52 NASAs 52 OSIRIS 52 Adaptive Optics 52 WFC3 52 RAD# [002] 52 Rosetta spacecraft 52 spectrometers 52 Tomography 52 telescopes 52 multispectral imaging 52 orbiting Hubble Space Telescope