Hero Rupes is an escarpment on Mercury more than 300 kilometres (190 miles) long[2] located in the southern hemisphere of Mercury.

[1] Discovered by the Mariner 10 spacecraft in 1974, it was formed by a thrust fault, thought to have occurred due to the shrinkage of the planet's core as it cooled over time.

[3] The scarp is named after sloop Hero, Nathaniel Palmer's ship used to explore the Antarctic coast, 1820–21.

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