Centripetal and centrifugal forces are central to circular motion, but they're not the same. Discover the differences between ...

A former NASA engineer working on a propellant-less propulsion drive has claimed that the device can deliver enough thrust to achieve lift in Earth's gravity, an effect which should not take place ...

This story is part of Short Wave's series Space Camp about all the weird, wonderful things happening in the universe. Check out the rest of the series. What does it take to launch into space? Other ...