Related by context. Frequent words. (Click for all words.) 54 Type Ia supernovae 51 Astrophysics 50 XMM Newton 50 Astrophysical Journal 49 Hubble observations 49 supernovae 49 spectroscopy 48 COBE 48 Terahertz 48 Astrophysical Journal Letters 48 redshift 48 Spintronics 48 Caltech 48 frequency comb 48 Crab Nebula 48 numerical simulations 47 LBNL 47 planetary nebulae 47 exoplanets 47 TRIUMF 47 Galaxy Evolution 47 Physics 47 supernova remnants 47 HD #b [002] 47 Innovative Silicon 47 Spectroscopy 47 JEOL 46 gravitational lensing 46 COROT 46 JILA 46 NASA Chandra 46 beamline 46 Resolution Imaging 46 Eta Carinae 46 GRBs 46 supernova explosions 46 spectroscopic 46 NASA Goddard 46 nanosystems 46 interferometry 46 synchrotron radiation 46 gamma ray bursts 46 supernova explosion 45 GRB # 45 magnetar 45 journal Astronomy 45 Photovoltaics 45 Lick Observatory 45 X ray emission 45 Milky Way Galaxy 45 Cancri 45 LCLS 45 UCLA Henry Samueli 45 dwarf galaxy 45 supernova remnant 45 galaxy clusters 45 Berkeley Lab 45 Stanford Linear Accelerator 45 silicon photonics 45 antiprotons 45 magnetic reconnection 44 WMAP 44 solar corona 44 Pulsars 44 gamma ray burst 44 nanophotonics 44 Niels Bohr Institute 44 RIKEN 44 NRAO 44 Space Telescope 44 high temperature superconductivity 44 Cosmology 44 Planetary Science 44 galaxy cluster 44 Superconductivity 44 ESO Very Large Telescope 44 EPOXI 44 microlensing 44 GeV 44 Photonic 44 Calit2 44 particle accelerators 44 superconducting materials 44 Cassini Huygens 43 journal Physical 43 planetary nebula 43 interferometer 43 pulsars 43 THz 43 Computational Biology 43 quantum dot 43 astrophysicists 43 elliptical galaxies 43 quasar 43 Keck Observatory 43 LLNL 43 galaxy formation 43 Orion Nebula 43 Nano Letters 43 ionized gas 43 Solar System