A record-breaking ascent of Everest was achieved in May 1978 by Reinhold Messner and Peter Habeler without the use of oxygen equipment. The duo's bold move raised questions about the risks of blood vessel bursts and brain damage.
Everest Unmasked
Reinhold Messner, a celebrated climber, embarks on a treacherous adventure to reach the summit without the support of supplemental oxygen, testing the limits of human physical and mental stamina.