UPDATE: Astronaut Scott Parazynski, the astronaut whose climb we followed in yesterday's episode of Boing Boing Video with Miles O'Brien, has reached the summit of Mt. Everest! Read more about their trumphant ascent here, including the GPS devices they're using to track and publish the effort. He tried this last year, but was injured when he was very, very close to reaching the summit -- so this success, a year later, is all the more sweet. Congrats, Scott!