Science Red Bull-fueled daredevil plans record skydive from edge of space

Austrian extreme skydiver Felix Baumgartner plans to ascend in a helium balloon to about 23 miles up, and then jump. He will break the sound barrier during freefall. 

Red Bull Stratos/AP

One man's quest to make a record-breaking leap from near the edge of space is nearing make-or-break time.