Life-Swapping Scenarios for Earth and Mars

[Mr. McD]

Evidence is mounting that the time-weathered red planet was once a warm and water-rich world. And a Mars awash with water gives rise to that globe possibly being fit for habitation in its past – and perhaps a distant dwelling for life today.



Planet swapping microbes

The idea that the seeds of life hobnob between far-flung celestial localities is known as panspermia.

Could Mars be a domain for both microbes flung off Earth due to asteroid and comet impacts, as well as a planet where a "second genesis" might have also occurred? Furthermore, if this was the case, could external life and made-on-Mars biology co-exist?

http://www.space.com/scienceastronomy/mars_life_041213.html

[burythehatchet]

1. It depends ...

will we have to issue an errata page for every bible in existence?

[phantom power]

2. That's a bit pervy, don't you think?

[Forkboy]

3. Great stuff...thanks for posting this!