Joe, as I explained to Brent, the question was not if water has existed on Mars in the past, it was if it was present in OCEAN quantities, over large geographical (areological?) areas. You have to read the announcement carefully, I was underwhelmed at first too, but this really is big news to a Martian geologist. C. --- Joe Bauman <bau@desnews.com> wrote:
It's just not big news that Mars once had water. We have had proof for some time that water ice exists at the poles and there are numerous photos of river channels on Mars. So why did NASA fly scientists from Pasadena to Washington to say they found proof water once soaked the Opportunity site? Just to show the rover found what it was looking for, I guess.
And I'm still not convinced the spheres are only concretions.
Right. They are blueberries! ;) C. __________________________________ Do you Yahoo!? Yahoo! Search - Find what youre looking for faster http://search.yahoo.com