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Compelling new data that chemical and fossil evidence of ancientmicrobial life on Mars
On Nov 26, 6:08*pm, Uncle Al wrote:
None accessible. *Not enough (reactive volume)(time)(conditions) in the first 2 billion years, then insufficient survivable conditions for the next 3 billion years. *Mars gets only [(1.496x10^11 meters)/(2.28x10^11 meters)]^2 = 43% of Earth's insolation and it has a much more eccentric orbit, 0.0167 and 0.09341 respectively. *Nasty place to evolve. there is alot of evidence the planet had very active geologic and volcanic activity and a much denser atmosfere with preasures good enough to have water flowing all over the surface. same rotation that the earth, same tilts producing season, 1/3 the gravity, it seems like a fun place for life to evolve! Mars' surface is well scorched by unattenuated solar deep UV - no ozone layer, no more than 7 torr of atmosphere (in the lowlands), lots of particulate radiation from cosmic rays and solar storms (no magnetosphere). *Surface eeath to organics of every kind. *Mars is cold enough to freeze out Dry Ice at 3 torr ambient pressure. *Yeah, that's a Garden of Eden. by the terrain itself anyone can see that mars did have many Extintion Level Events. from massive volcanic eruptions that this planet will never have in its life to killer meteor collitions. its no surprise this type of thing can destroy an atmosfere and turn an entire planet dry and cold ending all life. Recoverable viable microbes exist in South African gold veins 2+ miles underground and 60+ million years old. *Even if Mars harbors deep life there is no way to access it. *The total absence of fossils of any kind in Martian surface cuts and a scarps examined by the rovers tells us a lot. so the rovers didnt find any evidence of past microbial life? The Atacama Desert has life under "impossible" conditions in its salt extrusions. *Antarctica high deserts likewise in sandstone. *Mars is insanely more aggressive than either. it became like that between 1 and 2 billions years ago possibly by the reason i mention above creating a domino effect ending the more earth like mars era. r.y |
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