The Wabar craters are impact craters located in Saudi Arabia first brought to the attention of Western scholars by British Arabist, explorer, writer and...

including the Inaccessible Cones, Little Belknap, South Belknap, and Twin Craters, as well as the Belknap hot springs. Postglacial, mafic eruptions are...

caldera that has been largely buried by youthful pit craters and cinder cones with well-preserved craters. The most recent eruptions may have occurred only...

official and unofficial names chosen by the New Horizons team. Plutonian craters are named after scientists and other people associated with the study of...

a central pit. Older impact craters are somewhat shallower than young ones implying a degree of relaxation. The density of impact craters varies across...

from relatively fresh rayed craters to highly degraded crater remnants. Mercurian craters differ subtly from lunar craters in that the area blanketed by...

activity and has many associated geological features, such as lava tubes and craters that fill with spring water. The local flora includes pines, ceanothus...

a double-dagger (‡) indicates that the team was the last to arrive at a Pit Stop in a non-elimination leg, and had to perform a Speed Bump task in the...

Crater Lake National Park is a national park of the United States located in southern Oregon. Established in 1902, Crater Lake is the fifth-oldest national...

sits in a graben. Pit craters are often associated with graben. Pit craters do not have rims or ejecta around them, like impact craters do. Studies have...