A dangerous sport in which a diver in a protective suit jumps from orbit and falls through a planet's atmosphere, practised recklessly by B'Elanna Torres on Voyager's holodeck.
Orbital skydiving involves leaping from a spacecraft at orbital height and descending through the atmosphere in a heat-resistant suit before deploying a parachute.
It is shown in the Voyager episode Extreme Risk. B'Elanna Torres, numb since learning that her Maquis friends in the Alpha Quadrant have been killed, runs a series of perilous holodeck programmes with the safety protocols switched off, orbital skydiving among them, simply to feel something. Chakotay eventually confronts her.
The sport had been devised for Star Trek Generations, which was to open with James Kirk landing from an orbital jump; the scene was filmed but cut from the finished film.