Related by context. Frequent words. (Click for all words.) 53 sparsely vegetated 53 terrain 52 dense brush 52 thickly wooded 52 flame retardant foam 52 icy crust 52 Earthlike 51 Jupiter moon Io 51 heavily timbered 51 sparse vegetation 51 sedimentary deposits 51 penetrating radar 50 subglacial 50 carbonate minerals 50 molten magma 50 hydrocarbon reservoirs 50 inversion layer 50 rocky ledges 50 Meridiani 50 Lava flows 50 avalanche chutes 50 tropopause 50 lateritic 50 molten rocks 50 deep ravines 50 melting glacier 50 hardened lava 49 exosphere 49 pyroclastic flow 49 permafrost melts 49 temperature gradients 49 Gusev crater 49 heavily vegetated 49 Ground penetrating radar 49 powdery sand 49 #,#-#,# ft. Loc 49 polar craters 49 pyroclastic 49 sedimentary layers 49 perforations #,#-#,# feet [003] 49 upper troposphere 48 polyaromatic hydrocarbons 48 permanently shadowed craters 48 Saturn magnetosphere 48 HiRISE camera 48 lunar soil 48 refroze 48 hydrothermal activity 48 methane ethane 48 volcanic vents 48 gaseous planets 48 Sand dunes 48 heavily cratered 48 Prevailing winds 48 Martian dust 48 steep ravines 48 permanently shadowed 48 convection currents 48 coniferous forest 48 subalpine 48 GJ #b [001] 48 abrasive particles 48 extrasolar 48 chromosphere 48 Neutron stars 48 Slightly warmer 48 martian soil 48 Forage availability 48 forested terrain 48 Eliot Glacier 48 glacier carved 48 Earth ionosphere 48 tinder dry grass 47 boulder strewn 47 tall reeds 47 sulfate aerosols 47 iron sulfate 47 iron sulfide 47 permafrost thaws 47 volcanic lava 47 cypress swamp 47 steep mountainsides 47 greenish tint 47 planetary embryos 47 contour maps 47 warmer wetter 47 hummocks 47 freshly plowed 47 dispersing chemicals 47 Turnagain Pass 47 thermodynamically 47 slushy crystalline form 47 photosphere 47 silicate minerals 47 Himalaya Mountains 47 Valles Marineris 47 turbid water 47 plantlife 47 subsurface 47 ionizes 47 creek bottoms