Related by context. Frequent words. (Click for all words.) 60 spectrographs 60 photometer 59 interferometers 59 JWST 59 interferometer 58 LIGO 57 optical wavelengths 57 Cosmic Origins Spectrograph 57 optical telescope 56 gravitational wave 56 interplanetary spacecraft 56 COROT 56 spectrometer 55 interferometry 55 telescope 55 GLAST 55 Mini SAR 55 Webb Telescope 55 spacecraft 55 particle detector 55 WFC3 55 visible wavelengths 55 photonic crystal 54 infrared 54 multispectral 54 photodetector 54 CubeSat 54 radiometer 54 confocal 54 radar altimeter 54 LRO 54 hyperspectral 54 optical microscopes 54 microscopic imager 54 LROC 54 MetOp 53 EPOXI 53 NanoSail D 53 HiRISE camera 53 infrared radiation 53 spacecraft orbiting 53 SMOS 53 frequency comb 53 MARSIS 53 optical telescopes 53 photonic crystals 53 XMM Newton 53 infrared wavelengths 53 CALIPSO 53 radome 53 ultrasonic sensors 53 microwave frequencies 53 heliostats 53 optical microscopy 53 sunshield 53 LCLS 53 NASA Goddard 53 adaptive optics 53 nanosatellite 53 infrared telescope 53 beamline 53 InGaAs 53 plasmons 52 synthetic aperture radar 52 spectroscopic 52 Resolution Imaging 52 particle detectors 52 GOCE 52 Mauna Kea Hawaii 52 Galaxy Evolution 52 orbiter 52 NASA Lunar Reconnaissance 52 optical microscope 52 Spectrometer 52 Gravity Probe B 51 nanomechanical 51 spectrometers 51 STIS 51 shorter wavelengths 51 NASAs 51 photometry 51 eyepieces 51 electro optic 51 terahertz radiation 51 scramjet 51 THEMIS 51 beamlines 51 telescopes 51 wavelengths 51 Cassini Huygens 51 Very Large Telescope 51 SPIRE 51 Fluorescence 51 fluorescence imaging 51 ESOC 51 diffractive 50 Hubble Telescope 50 astronomical objects 50 NASA Cassini 50 Arecibo Observatory 50 HiRISE