In planetary nomenclature, a chasma /ˈkæzmə/ (plural: chasmata /ˈkæzmətə/) is a deep, elongated, steep-sided depression. As of 2020, the IAU has named...

Echus Chasma is a chasma in the Lunae Planum high plateau north of the Valles Marineris canyon system of Mars. It is in the Coprates quadrangle. Clay has...

and Ius chasmata, then Melas, Candor and Ophir chasmata, then Coprates Chasma, then Ganges, Capri and Eos chasmata; finally it empties into an outflow...

Ganis Chasma is a group of rift zones on the surface of the planet Venus. Bright spots detected by the Venus Monitoring Camera on the European Space Agency's...

Ithaca Chasma /ˈɪθəkə ˈkæzmə/ is a valley (graben) of Saturn's moon Tethys, named after the island of Ithaca, in Greece. It is up to 100 km (62 mi) wide...

Mandjet Chasma is a chasma on Pluto's moon Charon. Mandjet Chasma is 385 km (239 mi) long, and about 5–7 km (3.1–4.3 mi) deep with an average width of...

Hebes Chasma is an isolated chasma just north of the Valles Marineris canyon system of Mars. It is centered at 1 degree southern latitude and 76 degrees...

Eos Chasma is a chasma in the southern part of the Valles Marineris canyon system of the Coprates quadrangle and the Margaritifer Sinus quadrangles of...

crust created by the impact. The most prominent among them is called Ogygia Chasma. The crater must have originally been deep, with a high mountainous rim...

Ganges Chasma is a deep canyon at the eastern end of the vast Valles Marineris system on Mars, an offshoot of Capri Chasma, and is in the Coprates quadrangle...