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Pieces as large as 20 millimeters (1 in) were found on Crater Rim Drive while 0.3 m (1 ft) blocks hit the crater overlook area. [15] This was the first explosive eruption of Halemaʻumaʻu since 1924, and the first lava eruption from the crater since 1982. [16]
The similarity between Mimas's appearance and the Death Star in Star Wars due to the large size of Herschel has often been noted, both in the press and in NASA/JPL press releases. [ 6 ] [ 7 ] This is a coincidence, however, as the crater's similarities were not discovered until 1980 after Voyager 1 gained line of sight, three years after the ...
Mimas's low density, 1.15 g/cm 3, indicates that it is composed mostly of water ice with only a small amount of rock, and study of Mimas's motion suggests that it may have a liquid ocean beneath its surface ice. The surface of Mimas is heavily cratered and shows little signs of recent geological activity.
The Kaali impacts (c. 1500 BC) during the Nordic Bronze Age may have influenced Estonian and Finnish mythology, [5] the Campo del Cielo (c. 2500 BC) could be in the legends of some Native Argentine tribes, [6] [7] while Henbury (c. 2700 BC) has figured in Australian Aboriginal oral traditions. [8] Macha crater field map One of the Kaali craters
This is a list of named geological features on Mimas, a moon that orbits the planet Saturn. Mimantean features are named after people and places in Arthurian legend or the legends of the Titans . The sole exception to this is Herschel Crater , named after William Herschel , the astronomer who discovered Mimas in 1789.
As the trend in the Earth Impact Database for about 26 confirmed craters younger than a million years old shows that almost all are less than two km (1.2 mi) in diameter (except the three km (1.9 mi) Agoudal and four km (2.5 mi) Rio Cuarto), the suggestion that two large craters, Mahuika (20 km (12 mi)) and Burckle (30 km (19 mi)), formed only ...
Many vents of the Honolulu Volcanics are furrowed; [62] erosion has cut gullies in the slopes of Diamond Head [38] and Punchbowl Crater. [152] Wavecut terraces formed in some volcanoes during sea level highstands; [ 111 ] it is likely that wave erosion breached Hanauma Bay, flooding it, [ 14 ] either during or after the eruption that created it.
Haleakalā is far smaller than many volcanic craters ; there is an excellent chance that it is not extinct, but only dormant; and strictly speaking it is not of volcanic origin, beyond the fact that it exists in a volcanic mountain. [8] Haleakalā as seen looking northwest from Big Island, Hawaii, near Kawaihae, 85 kilometers (53 mi) away