Nice simulation (mixed with some real shots it seems) There are some spots on Earth that seem at least close to being devoid of life. The lifeless zone in the core of the Atacama desert:
http://www.astrobio.net/pressrelease/781/dry-limit-of-life "The Atacama is the only place on Earth (from which) I've taken soil samples to grow microorganisms back at the lab and nothing whatsoever grew," said Fred A. Rainey, an associate professor in biological sciences at LSU, who is a co-author of the study and an expert on microorganisms in extreme environments. "Normally, when you take a soil sample from any environment and you plate it on nutrient media, you see many different bacterial colonies growing there after a few days. But, in the case of the soils collected in some areas of the core region of the Atacama Desert, no or very few bacterial colonies appear, even after 20 days of incubation. So even hear on our living planet there are spots even on the surface that seem to be so sterile that nothing grows in a petri dish. On an aside - regarding the search for another genesis of life. wouldn't it be amazing if the first alien life form we may eventually discover is found living amongst us right here on earth. Some humble, heretofore unnoticed micro-organism in some marginal niche that when studied is found to belong to a separate tree of life. Every life form we know of so far can trace its origin to this single genesis, but need it necessarily be so? Of course we have not found such a species. yet. but then where have we looked? Have we truly assayed the depths of the sea and in the water column. Have we looked at all the micro-spaces between crystalline structures in continental bedrock. We know some microorganisms eke out an existence exploiting chemical gradients in granitic rocks, literally eating the rock. It is true that even the most exotic extremophiles we have discovered so far all belong to our same genesis.. .a testimony to the efficiency & vigor of DNA/RNA life forms, but how many of this planets diversity of microorganisms have we studied. How many life forms (especially microorganisms) yet remain to be discovered? I would not rule out the possibility that we discover that the aliens are right here amongst us. and have always been; perhaps even preceding our own genesis (or arrival onto this planet from genesis elsewhere. say Mars). Lovely flyover in that ESA video though; thanks for sharing. From: everything-list@googlegroups.com [mailto:everything-list@googlegroups.com] On Behalf Of LizR Sent: Tuesday, October 29, 2013 2:17 PM To: everything-list@googlegroups.com Subject: Is there life on Mars? Doesn't look too promising so far. Where are all the tripods and canals? http://mashable.com/2013/10/29/mars-flyover-video/ -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
