moon lunar apennine mountain range and craters

58percent apennine astertoids atmosphere basalt bright closeup contrast craters crescent dark depressions domes ejecta flows geology gibbous grabens highlands hills illuminated imbrium impact landscape lava lunar magma mare maria meteorites micrometeorites moon mountain mtns nightsky phase plains planetarium plato ptolemaeus range rarefaction regolith ridges rilles satellite selenology serenitatis surface surfaces telescope terrae tranquillitatis tubes volcanism volcanoes waxing wrinkle zones