This is an image of Mars.
Click on image for full size
Image from: NASA
Theories about Martian water & Climate
Scientists have two ideas about what happens to water on Mars. These ideas conflict with each other.
- 1.) Warm weather caused river channels & floods, which released water into the atmosphere. Rain returns water to the same ground. The result is that *water is recycled*.
- 2.) Floods caused water to flow (over time) from the higher ground to low ground. It was not released again, even when the weather became warm, but remained *permanently* frozen into the ground .
How can we tell which of these ideas is correct? Further exploration of Mars would help find the answers.
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