• Question: If there was no gravity, what would happen as there is no where for you to go?

    Asked by slamdunkeroo to Claire, Kate, Matt, Rob, Sam on 17 Jun 2013.
    • Photo: Sam Geen

      Sam Geen answered on 17 Jun 2013:

      Without gravity, you wouldn’t get galaxies, or stars, or planets, or people. The universe would just be a bunch of gas and dark matter floating around. But you can get places in the universe with low gravity – in orbit, it feels like there’s no gravity because the centripetal force of orbiting the planet cancels out gravity. People can live in that environment – check out Commander Chris Hadfield’s videos on YouTube for all kinds of demonstrations of how that works out.

    • Photo: Robert Woolfson

      Robert Woolfson answered on 17 Jun 2013:

      Without gravity, it’s not so much there’s nowhere as there is no idea of up or down or left or right. If we somehow existed in a world without gravity, I guess we’d think about the world in a completely different way.

      Whether we’d exist is a different matter. At a molecular level, the bonds that hold us together would still work. But there’d be nothing to make molecules get bigger. Once things reached a certain size they’d just stop growing.

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