15 puzzles · Browse all puzzles
TEMPERATURE, ATMOSPHERE, GREENHOUSE, PRESSURE, ROTATION, SURFACE, CLOUDS, SULFUR, YELLOW, TOXIC, DENSE, STORM, LAYER, WIND, HEAT
ESCARPMENT, HIGHLANDS, REGOLITH, BOULDER, CRATER, TERRAE, VALLEY, SHADOW, MARIA, RILLE, BASIN, CLIFF, PEAK, DUST, RAYS
MICROLENSING, BRIGHTNESS, WAVELENGTH, PHOTOMETRY, TELESCOPE, DETECTION, STARLIGHT, SPECTRUM, TRANSIT, DOPPLER, GRAVITY, PLANETS, IMAGING, ORBITS, RADIAL