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Old November 12 2012, 02:00 AM   #10
Location: Kentucky
Re: New Discovery: Super Earth in a Nearby System

The gas giant is probably the big risk, because if the atmosphere is thick enought it's either going to create extremely high surface temperatures or the planet will be so far from the star that there probably won't be a great enough influx of solar energy to support abundant photosynthetic surface life, on which complex animal life depends.

I don't think gravity alone would rule out life until it causes secondary problems, like molten lava flows or fusion in the core, since bacteria can thrive at 400,000 G's!

CNN story on bacteria

I would think a lot of our own multicellular ocean life would likewise be largely immune to gravit (such as jellyfish) and ocean life evolving to use neutral bouancy skeletal structures doesn't seem a bit far-fetched.
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