• Question: how does gravity wo0rk?

    Asked by 653kvna44 to David, Colin on 19 Nov 2014.
    • Photo: Colin Keogh

      Colin Keogh answered on 19 Nov 2014:

      Thats a pretty heavy question, with a pretty long answer. How stuff works explains it really well..
      http://science.howstuffworks.com/environmental/earth/geophysics/question232.htm

    • Photo: David Taylor

      David Taylor answered on 19 Nov 2014:

      The short answer is that nobody knows.
      We know that everything attracts everything else, so a really big mass like the Earth will attract a smaller mass (like you). But so far we don’t know why that happens. That’s one of the questions that they might answer by using the Large Hadron Collider in CERN.
      Did you read about that spacecraft that they landed on the comet? They had problems because gravity is so small on the comet that it bounced around a lot.

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