Related by context. Frequent words. (Click for all words.) 65 substorm 64 X ray emission 63 ultraviolet wavelengths 61 WASP #b 60 visible wavelengths 59 accretion disk 59 solar corona 59 Eta Carinae 58 galaxy NGC 58 diffraction pattern 58 supernova explosion 58 interferometric 58 orbiting planets 58 polar vortex 57 radial velocity 57 magnetar 57 Crab Nebula 57 GRBs 56 Ultraviolet radiation 56 active galactic nuclei 56 protoplanetary disk 56 tropospheric 56 anisotropy 55 dwarf galaxy 55 solar irradiance 55 astronomical objects 55 aurorae 55 extrasolar planet 55 gamma ray burst 55 supernova remnant 55 microlensing 55 shorter wavelengths 55 comet tail 55 meteoroids 54 auroral 54 ionized gas 54 Earth magnetosphere 54 celestial object 54 planet orbiting 54 supernova explosions 54 photometry 54 infrared wavelengths 54 planet orbits 54 photometer 53 interferometry 53 optical wavelengths 53 fluorescing 53 phytoplankton blooms 53 protostar 53 interferometers 53 nonlinearity 53 geoid 53 planetary nebulae 53 redshifts 53 constellation Orion 53 supernova remnants 53 fluorophores 53 oscillation 53 moonlets 53 meteoroid 52 irradiance 52 attosecond 52 atmospheric turbulence 52 convective 52 ejecta 52 photoluminescence 52 coronal 52 Saturn moon Enceladus 52 morphologies 52 spectroscopic 52 isotropic 52 electron density 52 coronal hole 52 Andromeda galaxy 52 keV 52 Gamma ray bursts 52 planetary nebula 52 Fomalhaut 52 stimulated emission 52 aurora 52 magnetosphere 52 superlens 52 GRB # 52 supermassive black hole 52 XMM Newton 52 sunspot 52 temperature gradient 52 magnetic reconnection 52 magnetars 52 elemental composition 52 poleward 52 supernova 52 ionised 52 infrared 52 occultation 52 Hawking radiation 52 mid latitudes 52 Ultraviolet light 52 infrared radiation 52 dynamical 52 oscillations