Red Bull Supersonic Freefall

This summer, Austrian daredevil Felix Baumgartner will be jumping from a helium balloon 23 miles above the surface of the Earth.

This is just a spectacular feat that Felix is attempting. Jumps like this have been attempted only a few times, in 1959 and 1960. And he'll break the sound barrier by diving from this altitude.

Space travel is an incredibly perilous endeavor, as we know all too well from the Challenger and Columbia disasters. But that's what makes this jump, and the last of its kind in 1960, so extraordinary. There is no ship, no heat shield between his spacesuit and his inhospitable surroundings -- a place where blood boils at body temperature. It's just a man against the elements.

I can't wait to see it.