Related by context. Frequent words. (Click for all words.) 63 tropospheric 59 metallicity 58 coronal hole 58 optical wavelengths 57 exosphere 57 substorm 56 phonon 56 irradiance 55 X ray emission 54 anisotropy 54 Gamma rays 54 geomagnetic field 53 ionized gas 53 Supplementary Fig 53 Fig. 1A 53 plasmon 53 interplanetary spacecraft 53 photometry 53 electron density 53 keV 53 ionospheric 53 auroral 52 solar corona 52 ultraviolet wavelengths 52 visible wavelengths 52 amplitudes 52 emissivity 52 spectra 52 excitation 52 γ 52 icy moons 52 VIRTIS 52 spectrographs 52 planet orbits 51 interferometric 51 polar vortex 51 diffraction pattern 51 comet nucleus 51 fluxes 51 photometer 51 dispersive 51 ionize 51 magnetosphere 51 angular momentum 51 oscillations 51 cytosolic 51 active galactic nuclei 51 Fig. 1B 51 velocities 51 orbitals 51 cm -1 51 photosphere 51 oscillatory 51 COROT 51 hydrologic cycle 51 magnetization 50 rubidium atoms 50 ejecta 50 Cosmic rays 50 interstellar dust 50 photons 50 photoluminescence 50 Ultraviolet radiation 50 nuclei 50 1kHz 50 gravitational lens 50 interferometer 50 atmospheric 50 cosmic ray 50 sorption 50 excitations 50 gaseous planets 50 spectral 50 shorter wavelengths 50 redshifts 50 stimulated emission 49 MeV 49 directivity 49 redshift 49 SMOS 49 solar nebula 49 z = 49 obliquity 49 parameterization 49 #mV [002] 49 ellipsoid 49 radial velocity 49 radiometer 49 GPa 49 insolation 49 circular orbits 49 atmospheric turbulence 49 photometric 49 laser pulses 49 aerosol particles 49 geoid 49 wavelength 49 resonant frequency 49 highly elliptical orbit 49 mmol 49 interferometers