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Methane on Mars could signal life [now]

  1. Mar 29, 2004 #1

    Ivan Seeking

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    Could it be...? :eek:

    http://news.bbc.co.uk/2/hi/science/nature/3577551.stm
     
  2. jcsd
  3. Mar 30, 2004 #2

    Nereid

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    Methane occurs in comets; carbon is found in carbonaceous meteorites; several million (?) tonnes of extra-(martial?) material falls on Mars each year ... how much methane in Mars' atmosphere arises from these sources?

    Given that methane has a short life in the martian atmosphere, what is the annual rate of methane production implied by these results (in tonnes/year)?
     
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