UPDATE: The jump has been aborted due to "gusty winds." No word on when it will be rescheduled.
You don't want to miss this -- watch live on YouTube at 10:30 a.m. PST/1:30 p.m. EST as Austrian skydiver Felix Baumgartner attempts to make history:
Baumgartner will undertake a stratospheric balloon flight to more than 120,000 feet and make a record-breaking freefall jump in the attempt to become the first man to break the speed of sound in freefall (an estimated 690 miles per hour), while delivering valuable data for medical and scientific advancement.
Fingers crossed that this ends well.