Related by context. Frequent words. (Click for all words.) 68 Spectrometer 67 photometer 66 spectrographs 65 elemental composition 65 spectrometers 65 spectrometry 64 Mini SAR 64 spectrometer 63 VIRTIS 63 X ray fluorescence 63 spectroscopic 63 radiometer 62 interferometric 61 infrared spectrometer 61 X ray telescope 61 OSIRIS 61 COROT 60 Resolution Stereo Camera 60 interferometers 60 XMM Newton 60 force microscopy AFM 60 Galileo spacecraft 60 infrared spectroscopy 59 interferometer 59 multispectral 59 Galaxy Evolution 59 particle detector 59 particle detectors 59 radar altimeter 59 exosphere 59 Gravity Recovery 58 NASA Cassini 58 SMOS 58 solar corona 58 interferometry 58 Southern Observatory ESO 58 Neutrons 58 photoluminescence 58 ESO Very Large Telescope 58 Lunar Reconnaissance Orbiter LRO 58 MARSIS 58 spacecraft orbiting 58 CRISM 57 Remote sensing 57 LOFAR 57 interplanetary spacecraft 57 ultraviolet wavelengths 57 samarium 57 Raman spectroscopy 57 infrared telescope 57 calorimeter 57 nanosatellite 57 La Silla Chile 57 Viking landers 57 Itokawa 57 Very Large Telescope 57 ionised 57 photochemistry 57 Suzaku 56 X ray diffraction 56 ESA Mars 56 frequency comb 56 near infrared NIR 56 Fluorescence 56 ionospheric 56 radial velocity 56 NASA Cassini spacecraft 56 Resolution Imaging 56 synchrotron radiation 56 Keck telescope 56 gas chromatograph 56 lunar soil 56 keV 56 Mauna Kea Hawaii 56 Mass Spectrometer 56 X ray beam 56 Lunar Prospector 56 Gamma rays 56 superlens 56 photometric 56 spectroscopy 56 spectrograph 55 photometry 55 active galactic nuclei 55 electromagnetic EM 55 neutron scattering 55 infrared wavelength 55 astronomical telescope 55 optical wavelengths 55 microscopic imager 55 scanning electron microscopy 55 geochemists 55 isotopic 55 nanomechanical 55 mass spectroscopy 55 Hubble observations 55 dispersive 55 Conductivity 55 martian soil 55 NASA Lunar Reconnaissance 55 magnetic resonance spectroscopy