Like HowStuffWorks on Facebook!

10 Crazy Examples of Horrible Movie Science

'Star Wars'

Let's put this one to rest once and for all. There is no sound in space. None. Space is a vacuum, and vacuums are devoid of particles. (Unless it's a vacuum cleaner, in which case it's full of all sorts of particles and other dodgy-looking debris.) Sound is a vibration, and no particles means there's nothing to vibrate, hence the lack of noise.

So, all the bips and zaps and yowls and kerpows you hear in space-based movies are totally phony. But moviemakers can rarely resist – or honestly afford to – skip them. Otherwise, fighter ship scenes would seem beyond boring. Even some instrumental music could have a hard time keeping the lame-train from leaving.

Those TIE fighters trying to shoot up the Millennium Falcon in "Star Wars?" Not a peep. At least before the sound engineer got a hold of them.

The not-even-a-little-bit-believable space explosions are a separate issue entirely.