Related by context. Frequent words. (Click for all words.) 68 equatorial 63 latitudes 61 tropics 59 Equator 56 troposphere 54 Arctic Circle 54 Pacific Ocean 53 Northern Hemisphere 52 northern latitudes 52 Atlantic Ocean 51 equinox 51 Antarctica 50 jet stream 50 northern hemisphere 50 Enceladus 49 planets 49 orbits 48 polar regions 48 Tasman Sea 48 southern hemisphere 47 polar 47 Southern Hemisphere 47 Sedna 47 elliptical orbit 46 tropical 46 subtropical 46 water vapor 46 aurora 46 Martian surface 46 planet 46 convection 46 Milky Way 46 ionosphere 46 Pleiades 45 Uranus 45 auroras 45 oceans 45 northerly 45 winter solstice 45 Saturn rings 45 Antarctic Peninsula 45 extrasolar planets 45 Earth 44 Milky Way galaxy 44 Andes Mountains 44 sunspots 44 vernal equinox 44 magnetosphere 44 polar orbit 44 easterly 44 ocean 44 sun 44 Antarctic 44 ocean currents 44 infrared wavelengths 44 hemispheres 44 interstellar space 43 Halley Comet 43 Cape Horn 43 Cassini 43 southerly 43 Red Planet 43 icebergs 43 Earth crust 43 altitudes 43 habitable zone 43 volcanic activity 43 nebula 42 celestial bodies 42 tropical cyclones 42 volcanism 42 upwelling 42 solstice 42 cosmic rays 42 outermost 42 eyewall 42 east coast 42 cosmos 42 geostationary orbit 42 Mars 42 comets 42 convective 42 deg 42 galaxy 42 sunspot 41 west coast 41 Indonesian archipelago 41 northeasterly 41 suns 41 summer solstice 41 Bering Strait 41 glacial ice 41 warm moist 41 Lesser Antilles 41 volcanoes 41 Saturn moon 41 quasar 41 brown dwarf 41 Ellesmere Island 41 asteroid belt 41 orbiting