• Question: Do you know if aliens exist

    Asked by choccybiscuit123 on 19 Jun 2019. This question was also asked by beano.
    • Photo: Ross Hill

      Ross Hill answered on 19 Jun 2019:


      We don’t know if they exist, but here are some BIG numbers to think about.

      Just in our galaxy (the milky way) there are ~300 BILLION stars…..
      People assume that the average star has 1 planet…. so thats 300 BILLION planets….. just in our solar system…

      Scientist at NASA estimate there are around 100 BILLION galaxies in the universe… so there’s a lot of planets that life could have evolved on….

      The main point is the universe is massive and we don’t know what is our there.

      More exciting than that… every living thing ever known to us, every living organisms ever seen by a human, existed on earth. Which is an incredibly beautiful thought.

    • Photo: Matthew Burgess

      Matthew Burgess answered on 19 Jun 2019:


      I don’t think anyone has yet found evidence that supports a definite conclusion that aliens exist.
      As Ross says, as we are starting to be able to put estimates on the number of star systems in the universe, and even start to be able to identify planets with atmospheres that might be similar to ours. So even if we limit our concepts of life to carbon based oxygen respiring like our planet we can argue that there is a probability of life coming into existence elsewhere in the universe.

      So a long winded way of say no/don’t know 😊

    • Photo: Kate Timms

      Kate Timms answered on 19 Jun 2019:


      No one knows if they exist or not as there is no physical evidence that they exist, yet. BUT as some of the others have said, our universe is so epically massive that its near impossible for life to not exist somewhere out there. To think we are alone in the universe isn’t just really sad, it’s also really egotistical to think we’re that special that we’re the only ones!

    • Photo: Rebecca Moon

      Rebecca Moon answered on 19 Jun 2019:


      I pretty certain there is no hardcore evidence for their existence, but it would be nice to think there is other life out there.

    • Photo: Kaitlin Wade

      Kaitlin Wade answered on 19 Jun 2019:


      We don’t know for definite that they exist but we’re are making moves to detect water on other planets so that we can maybe find life on these planets (at least life as we know it on earth!). I love the facts that Ross gave. I just hope that there is life out there but, if it’s far away, we might not ever meet that life or even find it.

    • Photo: Nina Rzechorzek

      Nina Rzechorzek answered on 19 Jun 2019:


      Not for sure – but can we ever really be 100% certain of anything?
      I would be extremely surprised if there were no other life forms out there in the Universe – but given that we created our own definition of ‘life’ would we even recognise these other forms if we see them? And that supposes that they would be visible to us….in the meantime there’s a whole lot of life left to discover on this planet.

    • Photo: Matthew Bareford

      Matthew Bareford answered on 20 Jun 2019:


      We don’t know for sure, but…

      I believe that somewhere out there, there must be another planet capable of supporting life in one form or another. Thus there must be alien life out there. How complex this is, is an entirely different matter. Due to conditions, it may be more or less complex. Also with the vast distances between planets and the ever changing stars and solar systems, perhaps life just hasn’t existed in multiple places at the same time period….yet?

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