Austrian skydiver Felix Baumgartner. Red Bull Content Pool Come Tuesday, weather permitting, Austrian daredevil Felix Baumgartner will attempt to be the first person to break the sound barrier in free fall.

The mission will take Felix 23 miles above Earth in a small space capsule.

He will then step out of the capsule and plunge to Earth hoping to reach speeds that exceed 690 mph.

The vessel is rigged with 15 cameras so that the entire Red-Bull sponsored event can be broadcast live online.

It's an unthinkably dangerous stunt that will test the limits of the human body in one of the most brutal environments: Air pressure is practically nonexistent and temperatures can sink to negative 70 degrees Fahrenheit.

Continue clicking to see how it will all come together.