|Coordinates||Lua error in Module:Coordinates at line 668: callParserFunction: function "#coordinates" was not found.|
|Naming||Word for "star" in Thai.|
Dao Vallis is a valley on Mars that appears to have been carved by water. It runs southwestward into Hellas Planitia from the southern slopes of the volcano Hadriacus Mons, and has been identified as an outflow channel. It and its tributary, Niger Vallis, extend for about 1,200 km (750 mi).
It is named after the Thai word for star, and it was proposed as a potential landing site for the 2012 Curiosity rover of the Mars Science Laboratory mission. In the fictional 2007 Canadian miniseries Race to Mars, it is the landing site for Gagarin, the lander.
Dao Vallis begins near a large volcano, Hadriacus Mons, so it is thought to have received water when hot magma melted huge amounts of ice in the frozen ground. Much of this water may have been released in very large "outburst floods". The partially circular depressions on the left side of the channel in the image below suggests that groundwater sapping also contributed water more gradually.
Section of Dao Vallis, as seen by THEMIS. Click on image to see relationship of Dao Vallis to other nearby features.
- Carr, M.H. (2006), The Surface of Mars. Cambridge Planetary Science Series, Cambridge University Press.
- "Geologic Evolution of Dao Vallis, Mars". Retrieved 2006-10-15.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
- "MSL Workshop Summary" (PDF). April 27, 2007. Retrieved May 29, 2007.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
- Dao Vallis (Released 7 August 2002)
|Wikimedia Commons has media related to Dao Vallis.|
|This article about the planet Mars or its moons is a stub. You can help Infogalactic by expanding it.|
|This article about an extraterrestrial geological feature is a stub. You can help Infogalactic by expanding it.|