It's not often that Google (GOOGL -0.53%) makes news when it's buying another computer. But this time, it's an extra-special machine that it bought in conjunction with NASA. It can do certain things thousands of times faster than a traditional supercomputer, and will be lent out to third-party researchers.

In the video below, Fool contributor Anders Bylund explains why he's so excited about quantum computing in general and this system in particular.