Panspermia Catch 22



On the one hand, a planet needs enough gravity to hold
in the necessary gases to have the atmosphere that
leads to life.
On the other, 'there is probably not enough energy in
the most violent volcano eruption to eject gravel size
or larger rocks out of the gravity well of a
terrestrial planet and into space." 'Life As We Do Not
know It.'

Therefore it is highly unlikely for a planet with the
necessary gravity to begin life, to also eject that
life into space.

Comment?

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Relevant Pages

  • Re: Whats the Problem?
    ... Life processes depend primarily on biochemical mechanisms, ... which gravity is a fairly insignificant influence. ... In many areas of the planet today, underground water seeps up to the ... Increase gravity some and that underground water stays underground. ...
    (talk.origins)
  • Re: Whats the Problem?
    ... Life processes depend primarily on biochemical mechanisms, ... which gravity is a fairly insignificant influence. ... In many areas of the planet today, underground water seeps up to the ... Increase gravity some and that underground water stays underground. ...
    (talk.origins)
  • Re: Whats the Problem?
    ... Life processes depend primarily on biochemical mechanisms, ... which gravity is a fairly insignificant influence. ... In many areas of the planet today, underground water seeps up to the ... Increase gravity some and that underground water stays underground. ...
    (talk.origins)
  • Re: Re: Whats the Problem?
    ... In many areas of the planet today, underground water seeps up to the ... Increase gravity some and that underground water stays underground. ... life has been able to adapt and thrive, ...
    (talk.origins)
  • Re: The Universal Mind
    ... We spend most of our energy fighting gravity, ... We don't yet occupy a planet which has half ... the conditions to exist which brought about life on this planet. ... you have a seriously fragmented brain. ...
    (sci.logic)