Related by context. Frequent words. (Click for all words.) 59 planet orbiting 59 Type Ia supernovae 59 X ray emission 58 pulsations 58 planet orbits 58 globular cluster 58 magnetar 57 supernova remnant 56 Eta Carinae 56 elliptical galaxies 56 dwarf galaxy 56 supernova 56 interferometry 55 supernova explosion 55 pulsar 55 accretion disk 55 planetary nebulae 55 photometric 55 spiral galaxy 55 Hubble observations 55 GRBs 54 microlensing 54 planetary nebula 54 planets circling 54 Milky Way Galaxy 54 Crab Nebula 54 globular clusters 54 celestial object 54 XMM Newton 53 ESO Very Large Telescope 53 auroral 53 brown dwarf 53 Algol 53 GRB # 53 HD #b [002] 53 planets orbiting 53 star Gliese 53 Large Magellanic Cloud 52 COROT 52 HARPS 52 supernova remnants 52 magnetization 52 Cassiopeia 52 ionized gas 52 nebula 52 spectra 52 quasar 52 supermassive black hole 52 magnetic flux 52 Betelgeuse 52 gamma ray burst 52 magnetic reconnection 51 extrasolar planet 51 gravitational lensing 51 galaxy formation 51 supernovae 51 Cancri 51 spectroscopic 51 solar corona 51 Orion Nebula 51 amplitudes 50 FRET 50 astronomical objects 50 brown dwarfs 50 neutron star 50 ejecta 50 redshift 50 galaxy 50 spiral galaxies 50 luminosity 50 phosphorescence 50 Andromeda galaxy 50 constellation Leo 50 interferometer 50 Andromeda Galaxy 50 constellation Orion 50 subatomic particle 50 magnetic fields 50 orbits 50 Alpha Centauri 50 galaxy cluster 50 unaided eye 50 planets 50 X ray Observatory 49 habitable planets 49 terrestrial planets 49 numerical simulations 49 exoplanet 49 Astrophysicists 49 anisotropy 49 Spitzer Space Telescope 49 Gamma ray bursts 49 ecliptic 48 occultation 48 wavefront 48 constellation 48 Galaxy Evolution 48 irradiance 48 astronomers 48 gravitational tug 48 supernovas