Debut: The viability of a manned trip to Mars is examined by researchers, scientists and astronauts. First up: logistical challenges and technical obstacles faced by the international space community in sending a manned mission to Mars and bringing it back. William Shatner narrates.
The physical toll on astronauts embarking on a three-year Mars mission, including muscle depletion and loss of bone mass in zero gravity, and damage from cosmic radiation, is examined. William Shatner narrates.