• Question: if space is a vacuum do things implode instead of explode?

    Asked by Mr epic man 56 to Ellen, Elliot, Hazel, Rupesh, Thomas on 20 Jun 2016.
    • Photo: Thomas Biggans

      Thomas Biggans answered on 20 Jun 2016:


      Space being a vacuum doesn’t make things implode or explode.

      An object implodes when the pressure outside the object is greater then the pressure inside. Because space is a vacuum there isn’t any pressure from space on an object to make it implode.

      Things in space do implode though such as stars when they die because of the strong force of gravity.

    • Photo: Elliot Jokl

      Elliot Jokl answered on 21 Jun 2016:


      Just to add another example onto Tom’s answer, if you filled a balloon on earth, and took it into space, it would pop!

      On earth, the pressure of our atmosphere pushes on the surface of the balloon with a similar force to the pressure of the air inside the balloon.

      In space, there is no atmosphere to push pressure on the surface of the balloon, so the pressure of the air inside the balloon would make the balloon expand until it popped.

      This doesn’t happen to space shuttles or the space station because they are made of strong enough materials that can handle the difference of pressure without expanding.

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