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← Newest alien planet is just the right temperature for life

Alan4discussion's Avatar Jump to comment 30 by Alan4discussion

Comment 16 by mmurray

So ignoring all the constants the force is proportional to the radius. Hence gravity should be 2.4 g on the surface of this planet of gravity if g on the surface of earth.. Uncomfortable for us but evolution could have adapted I think.

2.4 times Earth gravity would not be so much of a problem for life under water. Some life on Earth lives in the deep oceans under enormous pressure.

There would however be the issue of a possible large moon, possible tidal-locking, axial instability in the absence of one, or gravitational variation around the center of mass or barycenter if a large moon or binary planet system was involved.

If we are looking at the possibilities of life and abiogenesis there are some interesting points on this discussion: - http://richarddawkins.net/articles/643549-origin-of-life-challenge-how-did-life-begin#page1

Wed, 07 Dec 2011 11:52:09 UTC | #896419