Sunday, July 12, 2009

Water On Mars

Science always revises theories and premises, based upon new information and proofs.

I can think of two examples in astronomy.

The first is the change of category of Pluto. It's no longer consider a separate planet in the solar system. Instead, it's considered to be more like an asteroid or a moon of Nepture.

Here's a picture of the second:

Proof positive that there is water on Mars.

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