Earth Is A Prison

Once you're on Earth, you're never supposed to leave. We owe an ancient debt to the universe, a debt more than four billion years in the making. In order to get off the planet, that debt must be repaid. And once we're off, staying in space requires even more energy. Kurzgesagt explains why leaving Earth is like leaving prison — and just a difficult to do.

Your crate × Close

Free shipping over $99 in the U.S.
International rates at checkout. We're proud to offer a discount to Military, Nurses, and First Responders.