This May 2010 NASA image, combining data from two instruments aboard NASA's Mars Global Surveyor, depicts an orbital view of the north polar region of Mars. A huge, potentially life-giving sea likely covered more than a third of Mars some 3.5 billion years ago, according to a study released Sunday.… Read more » (AFP/NASA/File)
Obama sez: the disappearance of the Martian oceans is all Bush’s fault.
ping
Did global warming dry up the water? /s
A third of Mars once covered by ocean... before Bush!
Interesting
Any evidence that they had crappie, perch, or walleye?
90% of what is now France was once covered by manure; quite a lot of it stayed there.
I have three problems with this. First and most important is our own grotesque lack of planetary models upon which to formulate theories about why things look the way they look. We have been able to study the surface of one planet in detail, and our own geologic studies still have significant gaps. It is presumptious to announce that whatever happened here must also happen on Mars.
The second problem is noted in the article. Where did the water go?
The third problem is more important. Where did the water originate?
I wonder why those two rovers on the Mars surface didn’t find any organic evidence of life?