Related by context. Frequent words. (Click for all words.) 62 magnetars 62 Cepheids 62 pulsars 60 planetary nebulae 60 auroral 60 X ray emission 59 radial velocity 59 WASP #b 59 GRBs 59 Galaxy Evolution 59 Hubble observations 59 Gamma ray bursts 59 moonlets 59 optical wavelengths 58 redshifts 58 photometry 58 aurorae 57 supernova remnants 57 solar corona 57 pulsations 57 XMM Newton 57 astronomical objects 57 super Earths 57 extrasolar planets 56 extrasolar planet 56 microwave radiation 56 magnetar 56 active galactic nuclei 56 photometer 56 COROT 56 visible wavelengths 56 planet orbiting 56 Type Ia supernovae 56 microlensing 56 amplitudes 56 planets circling 56 interferometric 56 supernova remnant 56 baryons 56 Crab Nebula 56 Eta Carinae 56 ionospheric 55 celestial object 55 meteoroids 55 Pulsars 55 oscillations 55 brown dwarfs 54 Saturn rings 54 elemental composition 54 pulsar 54 redshift 54 rocky planets 54 interferometry 54 optical telescopes 54 terrestrial planets 54 exoplanets 54 habitable planets 54 Gamma rays 54 polar vortex 54 supernovae 54 dwarf galaxies 54 Cancri 54 infrared wavelengths 54 elliptical galaxies 53 substorms 53 unaided eye 53 supernova explosion 53 spectroscopic 53 nebulae 53 Orion Nebula 53 Higgs particle 53 gravitational wave 53 subatomic particle 53 interferometers 53 occultation 53 muons 53 galaxy clusters 53 star Gliese 53 wavelengths 53 quasars 53 distant galaxy 53 neutrino 53 magnetic reconnection 53 Oort Cloud 53 spectrographs 53 Cosmic rays 53 WIMPs 53 WFPC2 53 keV 53 Kuiper Belt objects 52 aerosol particles 52 HD #b [002] 52 Brownian motion 52 muon 52 gamma ray bursts 52 Gliese #g 52 VLBI 52 Haumea 52 distant galaxies 52 supernova explosions 52 photonic crystal