molten crater
41Bach quadrangle — The Bach quadrangle encompasses the south polar part of Mercury poleward of latitude 65° S.Mariner 10 photographyAbout half of the region was beyond the terminator during the three Mariner 10 encounters and hence not visible. The entire mapped… …
42Mount Etna — Etna redirects here. For other uses, see Etna (disambiguation). Mount Etna Mount Etna viewed from the SW. Elevation …
43Kīlauea — For the town of Kilauea on Kauai, see Kilauea, Hawaii. Kīlauea The Pu u O o cone, a subsidiary volcano of Kilauea. An ash column in the background rises from the peak of Kilauea. The volcano behind the ash column is Mauna Loa, which is separate… …
44Mount Mazama — collapsed a large caldera, which was later filled with Crater Lake. Elevation 8,159 ft …
45Colonization of the Moon — Lunar outpost redirects here. For NASA s plan to construct an outpost between 2012 and 2024, see Lunar outpost (NASA). Moonbase redirects here. For other uses, see Moonbase (disambiguation). 1986 artist concept The colonization of the Moon is the …
46Mount Kilimanjaro — Kilimanjaro redirects here. For other uses, see Kilimanjaro (disambiguation). Kilimanjaro Kibo Summit of Kilimanjaro Elevation …
47Mono–Inyo Craters — Coordinates: 37°53′N 119°0′W / 37.883°N 119°W / 37.883; 119 …
48Yellowstone Caldera — The northeastern part of Yellowstone Caldera, with the Yellowstone River flowing through Hayden Valley and the caldera rim in the distance …
49Late Heavy Bombardment — The Late Heavy Bombardment (commonly referred to as the lunar cataclysm, or LHB) is a period of time approximately 3,800 to 4,100 million years ago (mya) during which a large number of impact craters are believed to have formed on the Moon, and… …
50earth — /errth/, n. 1. (often cap.) the planet third in order from the sun, having an equatorial diameter of 7926 mi. (12,755 km) and a polar diameter of 7900 mi. (12,714 km), a mean distance from the sun of 92.9 million mi. (149.6 million km), and a… …
