Getting blown out of an airlock and into space without a suit is not a pleasant experience. But if it were to happen, just how long could you survive?

In fact, longer than you probably think. While you'll be unconscious within 15 seconds, you might be able to cling on for as long as three minutes if you're somehow placed back into a pressurized space straight away after rescue. In this video, Today I Found Out explains why you can survive quite that long. [Today I Found Out]