• Question: are there always going to be stars, a sun and a moon

    Asked by senior to Alan on 11 Mar 2014.
    • Photo: Alan Fitzsimmons

      Alan Fitzsimmons answered on 11 Mar 2014:

      For us they will always be there, but only because our lives are so short.

      The sun will die eventually, but it will be in 5 billion years time.

      As old stars die, new stars are being born. We see this happening today with our telescopes.We think this will keep happening for hundreds of billions of years.

      We’re not sure of the Moon will always be there. It may be that when the sun dies it will destroy the Earth, and the Moon with it But that’s so far in the future no one is worrying about it.

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