Valles Marineris (Mars)
3,870 km (2,405 mi)
Length
The great canyon system of Mars, seen from above and measured end to end. About 3,870 km long, as far as New York to Los Angeles.
Published
How big is that?
3,870 km is 437 times Mount Everest and 30% of Earth.
Valles Marineris is the 14th largest of the 39 Cosmic Scale objects, and the 14th largest of the 109 objects across all three SizeItUp games.
Size comparison
To scale, smallest to largest: Valles Marineris in orange beside the Cosmic Scale objects nearest in size, in teal.
| Object | Size | vs Valles Marineris |
|---|---|---|
| The MoonEarth's only natural satellite. | 3,475 km across | 90% of the size |
| Io (Moon of Jupiter)The most volcanic world in the Solar System. | 3,643 km across | 94% of the size |
| Valles Marineris (Mars) | 3,870 km long | – |
| Callisto (Moon of Jupiter)Jupiter's battered outer giant moon, covered in craters. | 4,820.6 km across | 1.2× bigger |
| MercuryThe smallest planet and the closest to the Sun. | 4,879 km across | 1.3× bigger |
In other units
| Metres | 3,870,000 |
|---|---|
| Kilometres | 3,870 |
| Feet | 12,700,000 |
| Miles | 2,405 |
How it's measured
Length. NASA.
Sources
- science.nasa.gov: Extends about 2,400 miles (3,870 kilometers) in length.
Checked against the source on .
Could you have guessed it by eye?
Valles Marineris is one of the objects in Cosmic Scale, a daily size comparison game: you stretch a shape to the size you think is right beside one you know.