Related by context. Frequent words. (Click for all words.) 72 substorms 66 supernova explosion 65 X ray emission 64 Earth magnetosphere 64 gamma ray burst 64 magnetar 61 auroras 61 aurora 61 coronal mass ejections 61 oscillations 61 dynamical 60 magnetosphere 60 GRBs 60 sunspot 60 sunspot activity 60 cosmic ray 59 solar flares 59 gamma ray bursts 59 supernova remnant 59 neutrino 59 geomagnetic 58 cosmic rays 58 amplitudes 58 supernovae 58 geomagnetic storms 58 quasar 58 coronal mass ejection 58 ejecta 58 Brownian motion 58 Iapetus 58 supernova explosions 57 comet nucleus 57 volcanism 57 galaxy cluster 57 laser pulse 57 spacetime 57 ionosphere 57 dwarf galaxy 57 neutron star 56 NASA Cassini spacecraft 56 CMEs 56 convective 56 pulsar 56 gravitational waves 56 geomagnetic storm 56 geomagnetic field 56 Eta Carinae 56 distant galaxies 56 laser pulses 56 galaxy clusters 56 occultation 56 cometary 56 quark gluon plasma 56 muons 56 gravitational wave 55 supernova 55 sunspots 55 anisotropy 55 superfluid 55 interstellar medium 55 COROT 55 XMM Newton 55 extrasolar planet 55 gravitational lensing 55 gamma rays 55 supermassive black hole 55 nuclei 55 cosmic microwave background 55 comet 55 femtoseconds 55 oscillation 55 perturbation 54 interferometry 54 subatomic particles 54 ringed planet 54 astrophysical 54 high temperature superconductivity 54 THEMIS 54 distant galaxy 54 radioactive decay 54 atmospheric circulation 54 neutrinos 54 ecliptic 54 magnetization 54 elliptical galaxies 54 heliosphere 54 Enceladus 54 interstellar dust 54 vortices 53 Saturn rings 53 exoplanet 53 quasars 53 crustal 53 galaxies 53 perturbations 53 pulsations 53 greenhouse warming 53 HD #b [002] 53 photons 53 gamma ray 53 magnetic fields