Related by context. Frequent words. (Click for all words.) 60 magnetar 57 GRB # 57 active galactic nuclei 57 pulsars 57 Gliese #g 57 Eta Carinae 57 Type Ia supernovae 57 pulsar 56 dwarf galaxy 55 X ray emission 55 radial velocity 55 accretion disk 55 supernova remnant 55 supernova explosion 54 Brownian motion 54 Hawking radiation 54 Higgs particle 54 galaxy cluster 54 gravitational lensing 53 Gamma ray bursts 53 super Earths 53 XMM Newton 53 Cancri 53 muon 53 galaxy formation 53 planetary nebulae 53 subatomic particle 53 galaxy clusters 52 supernova remnants 52 observable universe 52 GRBs 52 planet orbits 52 microlensing 52 globular cluster 52 extrasolar planet 51 supermassive black holes 51 gamma ray burst 51 Crab Nebula 51 globular clusters 51 planetary nebula 51 Bose Einstein condensate 51 Kuiper belt 51 HD #b [002] 51 optical biosensors 51 gravitational wave 51 supernovae 51 neutron star 51 atomic nuclei 51 planet orbiting 51 WIMPs 51 Pulsars 50 photoelectric effect 50 planets circling 50 dwarf galaxies 50 magnetic reconnection 50 ecliptic 50 exoplanets 50 muons 50 X ray Observatory 50 accreting 50 brown dwarfs 49 spiral galaxies 49 solar nebula 49 brown dwarf 49 quark gluon plasma 49 Galaxy Evolution 49 supernova 49 gamma ray bursts 49 supernova explosions 49 elliptical galaxies 49 Spintronics 49 planetoid 49 neutron stars 49 interstellar medium 49 quasar 49 singularities 49 high temperature superconductivity 48 distant galaxy 48 distant galaxies 48 excitons 48 ribozyme 48 COROT 48 Large Magellanic Cloud 48 gravitational attraction 48 colliders 48 Saturn rings 48 Hubble observations 48 extrasolar planets 48 redshifts 48 electron beams 48 quanta 47 positron 47 GeV 47 spatial dimensions 47 quantum theory 47 Haumea 47 innermost planet 47 MeV 47 supergiant 47 spacetime 47 supernovas