By now, many of you know that rock star Canadian Space Agency astronaut Chris Hadfield has returned to Earth from the International Space Station (ISS).
Why do I call him a rock star?
While he was up there, one of his jobs was to answers questions from the public, and he did a delightful job. Frankly, I never even thought about many of the issues he addresses.
For example, have you been itching to know how astronauts brush their teeth in space?
Besides telling us how astronauts shave, sleep or exercise, Hadfield also explained some of the experiments that were conducted on board the ISS. Here's an example with a bonus of spectacular solar wind footage.
You can catch his many fascinating videos on his YouTube channel.