[ckilmer]

[ckilmer]

Polygonal cracks were carved on the "Escher" rock by a second wet episode (image: NASA/JPL/Cornell)

[softengine]

bump for later reading with son.

[hershey]

Fascinating stuff. If we brought back some Martian rocks and scraped some stuff onto an agar plate would bacteria possibly grow?

[Godebert]

Wow....I forgot all about the rovers. They were supposed to be functional for about 90 days but they'll be closing-in on a year of Martian roving this January.

[snopercod]

bump

[builder]

If we keep looking ,we will eventually find evidence of internal combustion engine use that must have ruined their ozone layer and killed this poor planet and all the inhabitants. This will surely happen to us also.

[FierceDraka]

This is just my semi-educated opinion on the subject. Mars' warm, wet period would have probably been shortly after the planet's formation, when there was still significant volcanism and carbon dioxide outgassing that caused a greenhouse effect.

Once the planet's volcanism died down, the distant Sun became the sole remaining source of heat on the surface, and Mars became the frozen desert it is today.

That's my guess, anyway.

[NormsRevenge]

wet episode..?

has there been more than one, I wonder?

Now, if they could just land a rover near Cydonia.

[RockinRight]

http://www.freerepublic.com/focus/f-news/1408665/posts