The Capillary Cup is a zero-gravity cup designed by NASA astronaut Donald Pettit on the International Space Station. The product is an open drinking cup designed to be used in a microgravity ...

With three space missions under his belt — and more than a year aboard the International Space Station — NASA astronaut Donald Pettit has experienced something that very few humans have.

This isn't the first time Pettit demonstrated his engineering skills on the ISS. In 2008, he devised the zero-G coffee cup, which became the first patented invention in space. The astronaut was ...