Related by context. Frequent words. (Click for all words.) 58 Cepheids 57 magnetar 56 magnetars 56 WASP #b 55 Lunine 55 A'Hearn 55 Hubble observations 55 galaxy formation 55 Eta Carinae 54 Robock 54 X ray emission 53 auroral 53 Astrophysicist 53 radial velocity 53 Filippenko 53 Galaxy Evolution 53 astrophysicists 53 XMM Newton 53 Melosh 52 GRBs 52 Gehrels 52 Cosmologists 52 solar corona 52 Higgs particle 52 Niels Bohr Institute 52 meteoroid 52 aerosol particles 52 Type Ia supernovae 52 supernova explosions 52 astronomers 51 Cassini imaging 51 elliptical galaxies 51 Hawking radiation 51 CfA 51 Crab Nebula 51 planets circling 51 Rignot 51 magnetic reconnection 51 ultraviolet wavelengths 51 Astrophysicists 51 VIRTIS 51 Changizi 51 galaxy clusters 51 planetary nebulae 51 supernovae 51 supernova explosion 51 boson 50 supernovas 50 Strohmayer 50 spectroscopic 50 isotope ratios 50 solar nebula 50 astrophysical 50 Pasachoff 50 cosmic ray 50 gamma ray burst 50 decoherence 50 protoplanetary disk 50 Einstein theories 50 Venusian 50 dwarf galaxies 50 active galactic nuclei 50 Melott 50 gravitational lensing 50 Varki 49 O'Dor 49 redshift 49 interstellar medium 49 isotopic composition 49 moonlets 49 nuclei 49 Deisseroth 49 planet orbiting 49 brown dwarfs 49 National Astronomical Observatory 49 planets orbiting 49 microlensing 49 terrestrial planets 49 Planetary Science Institute 49 Saturn rings 49 Oort Cloud 49 Cassini radar 49 neutron star 49 CMEs 49 atmospheric chemistry 49 gamma ray bursts 49 Pulsars 49 Carilli 48 theoretical calculations 48 Kuiper belt 48 pulsars 48 WMAP 48 planet orbits 48 numerical simulations 48 distant galaxy 48 Astrophysics 48 substorms 48 polar vortex 48 supernova remnants 48 Figer 48 COROT