Related by context. Frequent words. (Click for all words.) 63 gravitational 53 supernova explosion 53 magnetic fields 53 gravitational pull 52 interstellar medium 49 gravitational lensing 49 magnetosphere 49 atomic nuclei 48 neutron star 48 spacetime 48 outer layers 48 electromagnetism 48 galaxy clusters 47 dynamical 47 vortices 47 heliosphere 47 gravitation 47 galaxies 47 hydrogen atoms 46 angular momentum 46 astrophysical 46 superfluid 46 neutron stars 45 galaxy 45 distant galaxies 45 vortex 45 planets 45 Einstein theory 44 nebulae 44 gravitational waves 44 outer planets 44 atomic particles 44 supermassive black holes 44 cosmic 44 ionosphere 43 orbits 43 quasar 43 filaments 43 atoms 43 starlight 43 planet orbiting 43 convective 43 galactic 43 centrifugal forces 43 subatomic particles 43 elliptical galaxies 43 atmospheric circulation 43 X ray Observatory 43 interstellar dust 43 Uranus 43 magnetic 42 ejecta 42 galaxy cluster 42 nebula 42 radioactive decay 42 nuclei 42 cosmic rays 42 distant galaxy 42 hydrodynamic 42 centrifugal force 42 particles 42 cosmic ray 42 corona 42 GRBs 42 general relativity 42 oscillations 41 cosmic microwave background 41 interstellar 41 dwarf galaxies 41 spiral galaxies 41 supermassive black hole 41 planetary 41 pulsar 41 terrestrial planets 41 gravity 41 brown dwarfs 41 deformation 41 velocities 41 orbiting 41 supernova 41 gaseous 41 quasars 40 rocky planets 40 Milky Way 40 neutrons 40 globular clusters 40 crustal 40 Iapetus 40 microstructures 40 deformations 40 disordered 40 cosmos 40 silicates 40 neutrinos 40 gamma rays 40 solar flares 40 deform 40 compressive 40 celestial bodies 40 gluons 40 supernovae