• Question: why is there no life on any planets

    Asked by lilmini to Mark on 15 Jun 2010 in Categories: .
    • Photo: Mark Roberts

      Mark Roberts answered on 15 Jun 2010:

      An interesting qu that – to be honest we don’t for /sure/ know that there is no life on other planets

      Why there might not be really relates to the chemistry of how life works – the chemistry we need relies on water and carbon – if these are not present in sufficient quantities and in a ‘useable form’ then life (well as we know it!) can’t really exist. Though there are theories that life could exist using silicon instead of carbon as it has similar chemical properties.

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