• Question: can you blow up a balloon in space?

    Asked by anon-226221 to Sameed, Jose, joannabarstow, Heidi, Chris on 20 Nov 2019.
    • Photo: Heidi

      Heidi answered on 20 Nov 2019:

      Yep! It’s very easy to blow up a balloon in space. You blow up a balloon by putting a larger pressure in the balloon than outside the balloon, which then expands. In space, the pressure is almost zero, so it’s very easy to put more pressure inside the balloon than outside.

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