Space Is Silent: Movies Got This Wrong

In movies, spaceships explode with a huge BOOM. In real space, you would hear nothing.
Sound is just air pushing air, and space has almost no air to push.

So how do astronauts talk on a spacewalk? And why did NASA still find a "sound" coming from a black hole 240 million light years away?

Sources: Smithsonian National Air and Space Museum; NASA Chandra X-ray Observatory (Perseus cluster sonification); OpenStax Astronomy.

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