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- Mon Oct 22, 2007 11:12 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: How do Martian craters survive? (APOD 22 Oct 2007)
- Replies: 2
- Views: 1905
How do Martian craters survive? (APOD 22 Oct 2007)
Something has always puzzled me about Martian craters. Given that they are very old, and that there is so much dust/soil all over the place, why aren't the craters filled to the rim? Does the wind fill and empty them at the same rate? How does the amount of filling depend on wind speed, particle siz...