SpaceTV-1, a set of Ultra High Definition 4k cameras from space streaming company Sen, was delivered to the International Space Station (ISS) last year, and is now broadcasting live views of Earth and ...

But therein lies Pettit's genius. He's brought with him to space a homemade star tracker, a device that rotates a camera to compensate for the ISS's movement. It's a variation on a tool used by ...