Messina Chasmata

The Messina Chasmata /mɛˈsiːnə ˈkæzmətə/ are the largest canyon or system of canyons on the surface of the Uranian moon Titania, named after a location in William Shakespeare's comedy Much Ado About Nothing.^[1] The 1,492 km (927 mi) long feature includes two normal faults running NW–SE, which bound a down-dropped crustal block forming a structure called a graben.^[2] The graben cuts impact craters, which probably means that it was formed at a relatively late stage of the moon's evolution,^[3] when the interior of Titania expanded and its ice crust cracked as a result.^[4] The Messina Chasmata have only a few superimposed craters, which also implies being relatively young. The feature was first imaged by Voyager 2 in January 1986.^[2]

Messina Chasmata

Messina Chasmata is near the center of this Voyager 2 image of Titania
Feature type	Chasm system
Location	Titania
Coordinates	33.30°S 25.00°W / -33.30; -25.00[1]
Length	~1,492 km (927 mi)[1][a]
Discoverer	Voyager 2
Naming	Official

Notes

1. Length is labelled under "diameter" in the GPN database.