Valles Marineris

American  

[val-uhs-mar-uh-nair-is] / ˈvæl əsˌmær əˈnɛər ɪs /

noun

Astronomy.

1. a canyon on Mars, 3,100 miles (5,000 km) in length, named after the Mariner spacecraft.

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Example Sentences

This region near the cliffs of Valles Marineris preserves signs of a wetter past.

From Science Daily

"We investigated two sulfate-bearing sites near the vast Valles Marineris canyon system that included mysterious spectral bands seen from orbital data, as well as layered sulfates and intriguing geology," said Bishop.

From Science Daily

The research focused on two areas close to Valles Marineris, one of the largest canyon systems in the solar system.

From Science Daily

The second site lies on the plateau above Juventae Chasma, a 5-km-deep canyon located just north of Valles Marineris.

From Science Daily

Sulfate minerals are widespread throughout the Valles Marineris region, especially in rugged landscapes called chaotic terrains.

From Science Daily