Chris Hadfield is a Canadian astronaut who is a mission specialist on STS-74 and STS-100. Currently he is living in space aboard ISS (International Space Station) as a Flight Engineer on Expedition 34, and will be the Commander of Expedition 35.
In other words he is orbiting the earth right now!!
Check out this video of his wristwatch!
You can also follow him on twitter! He is regularly tweeting out pictures from space. There are some amazing pictures on here!