In case you haven't seen it yet, check out the video of oceanographer Tim Shank in the Alvin submersible speaking to astronaut Suni Williams in the International Space Station. They spoke through 2 miles of water and 220 miles of air. But 222 miles? That's just the distance from New York to Boston. The real trick, of course, was reaching the submarine through the 2 miles of water. We wish we had a better picture, but this is pretty much what most of the conversation between the Alvin and the ISS looked like. [Quicktime]