Related by context. Frequent words. (Click for all words.) 62 polar vortex 60 magnetosphere 59 ionized gas 59 Earth magnetosphere 58 tropospheric 57 dipoles 56 magnetic reconnection 56 Cosmic rays 56 X ray emission 56 excitations 55 accretion disk 55 Gamma rays 55 convective 55 solar corona 55 thermosphere 55 Oort Cloud 55 protoplanetary disk 55 ionospheric 54 ionize 54 dipole 54 interstellar medium 53 solar nebula 53 auroral 53 reverberant 53 meteoroid 53 oscillatory 53 circular orbits 53 superfluid 53 microwave radiation 53 ultraviolet wavelengths 53 rubidium atoms 52 oscillations 52 meteoroids 52 excitons 52 planetesimals 52 magnetic flux 52 shorter wavelengths 52 crystal lattice 52 heliosheath 52 poleward 52 magnetic fields 52 ionisation 52 Brownian motion 52 lithosphere 52 ionised 52 pulsations 52 phonon 51 electrically conducting 51 ejecta 51 aerosol particles 51 ionosphere 51 optical wavelengths 51 laser pulse 51 troposphere 51 active galactic nuclei 51 vortices 51 coronal 51 isotropic 50 radiative 50 geomagnetic field 50 alpha particles 50 interferometers 50 perturbations 50 WASP #b 50 moonlets 50 electron spins 50 spacetime 50 decoherence 50 interplanetary spacecraft 50 cosmic radiation 50 electron density 50 supernova explosions 50 galaxy cluster 50 wavelike 50 electromagnetic 49 supernova explosion 49 magnetar 49 harmful ultraviolet radiation 49 magnetars 49 magnetization 49 heliosphere 49 nuclei 49 orbitals 49 ultrasonic waves 49 keV 49 oscillation 49 gravitationally 49 -# degrees Fahrenheit [002] 49 photoluminescence 49 perturbation 49 plasmons 49 magnetic 49 upwellings 49 planet orbits 49 amplitudes 49 picoseconds 49 electrons 49 torus 49 magma chamber 48 liquid droplets 48 spectrographs