We have direct evidence for the current existence of water on the surface of which terrestrial object?

Name: We have direct evidence for the current existence of water on the surface of which terrestrial object?
Brand: Quizplus
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Question

Quizplus · Accepted Answer

There is evidence of liquid water on the surface of Mars, as well as frozen water in the polar ice caps and as subsurface permafrost. This evidence comes from observations made by orbiting spacecraft and exploration rovers on the surface.

We Have Direct Evidence for the Current Existence of Water