Related by context. Frequent words. (Click for all words.) 63 telescopes 60 telescope 59 interferometers 58 optical telescopes 58 interferometric 57 interplanetary spacecraft 56 optical telescope 56 optical microscopes 56 photometer 55 infrared telescope 55 spectrometers 54 particle detectors 54 sensor arrays 54 observatories 54 Remote sensing 54 spectrographs 54 optical microscope 54 astronomical observations 54 HiRISE camera 54 x ray imaging 53 photometry 53 adaptive optics 53 Keck telescope 53 optical microscopy 53 optical wavelengths 53 photonic devices 53 interferometer 53 eyepieces 52 hyperspectral 52 astronomical observatory 52 interferometry 52 illuminators 52 Paranal 52 VLBI 51 scanning electron microscope 51 spectroscopic 51 CubeSat 51 microscopes 51 particle detector 51 Arecibo Observatory 51 X ray telescope 51 optics 51 photonic crystals 51 observatory 51 telescopic 51 photovoltaic arrays 51 WM Keck Observatory 51 WFC3 51 micro optics 51 AFMs 50 Webb Telescope 50 Pan STARRS 50 geodesy 50 camera obscura 50 photometric 50 particle accelerators 50 radar altimeter 50 near infrared NIR 50 spectrophotometers 50 integrated photovoltaic BIPV 50 JWST 50 astronomical objects 50 remote sensing 50 confocal microscope 50 microelectronic devices 50 Lick Observatory 50 imager 49 ionisation 49 eyepiece 49 ultrasonics 49 XMM Newton 49 SIRTF 49 radomes 49 frequency comb 49 Southern Observatory ESO 49 superconducting magnet 49 colliders 49 arrays 49 pinhole cameras 49 infrared 49 transmission electron microscope 49 Moritex 49 Cosmic Origins Spectrograph 49 fused silica 49 geostationary satellites 49 optoelectronic components 49 ZEISS 49 satellites 49 astronomy 49 astrophotography 49 opto 48 Sofradir 48 lidar 48 sundials 48 MEMs 48 geodesic domes 48 fluidics 48 Earthlike 48 visible wavelengths 48 scanning tunneling microscope 48 gravitational lensing