• Question: First To answer gets the vote How old is the universe with explanation?

    Asked by anon-225687 to Sameed, Jose, joannabarstow, Heidi, Freya, Chris on 16 Nov 2019. This question was also asked by anon-225883.
    • Photo: Heidi

      Heidi answered on 16 Nov 2019:


      The universe is about 13.8 billion years old. The way we know that is through Einstein’s theory of General Relativity. Using that, we can work out how fast the universe has been expanding in the past, and then turn the clock back to work out when the universe was at it’s “zero” point, or “zero” size. 🙂

Comments