18°18′S 347°48′E / 18.3°S 347.8°E [1]
Verona Rupes is a cliff on Miranda, a moon of Uranus. [3] It was discovered by the Voyager 2 space probe in January 1986. The cliff face, previously thought to be from 5 to 10 km (3 to 6 mi) [4] high, is currently estimated to be 20 km (12 mi) [5] high as of 2016, which makes it the tallest known cliff in the Solar System. [6]
It may have been created by a major impact, which caused the moon to disrupt and reassemble, [3] [6] or by the crust rifting. [7]
Given Miranda's low gravity, it would take about 12 minutes to fall from the top, reaching the bottom at the speed of about 200 km/h. [5]