• Question: do you think there is life on other planets or universes?

    Asked by yummyyumyum to Anthony on 18 Jan 2019.
    • Photo: Anthony Redmond

      Anthony Redmond answered on 18 Jan 2019: last edited 18 Jan 2019 4:37 pm

      I think there is definitely a possibility that there is life on other planets. If there are other universes then this possibility may be even greater. But the chances that we cold find each other (in space or time!) or interact if we do are much smaller.

      Even if life exists elsewhere, it may not be much like us, and it could be so different that we might not easily recognise it as life! By this I mean that life elsewhere, will almost definitely be less like ourselves than even bacteria are, even if it shares a common origin with life on earth (e.g. if the last common ancestor of life on earth got here by meteorite)! Its possible that life elsewhere would have different genetic code (assuming that we consider this necessary for life at all!), or even be based on different chemistry.
      All this also means it is extremely unlikely for alien life to be remotely so similar to ourselves as the aliens we see on TV!