Peter Habeler(1942 — ?)
Peter Habeler
Autriche
8 min read
Austrian mountaineer born in 1942, Peter Habeler is famous for making the first ascent of Everest without supplemental oxygen in 1978, alongside Reinhold Messner. This feat revolutionized our understanding of the limits of human endurance at high altitude.
Frequently asked questions
Key Facts
- 1942: born in Mayrhofen, Austria
- 1975: first ascent of Gasherbrum I (8,068 m) in alpine style with Reinhold Messner
- 8 May 1978: first ascent of Everest without supplemental oxygen with Reinhold Messner
- Career as a high-mountain guide and director of a mountaineering school in Mayrhofen
Works & Achievements
Together with Reinhold Messner, Habeler made the first ascent of a peak over 8,000 metres without supplemental oxygen and via a new route. This achievement was a direct prelude to the 1978 revolution on Everest.
Habeler and Messner climbed the legendary Eiger North Face in ten hours, setting a world record. This performance introduced the wider public to their radical alpine style, built on speed and light-and-fast principles.
A landmark achievement in modern mountaineering: Habeler and Messner reached the summit of Everest (8,848 m) without the use of artificial oxygen, proving that the human body can survive at the top of the world under natural conditions.
A personal account of the historic ascent, translated into many languages. Habeler describes with precision the doubts, the physiological challenges, and the moments of grace experienced on the slopes of Everest.
Throughout his life, Habeler trained generations of climbers and skiers in his home valley in Tyrol. This educational work, often overshadowed by his Himalayan achievements, forms an essential part of his legacy.
Anecdotes
Before the 1978 expedition, many doctors and physiologists insisted it was impossible for a human being to reach the summit of Everest without supplemental oxygen, predicting irreversible brain damage or even death. Habeler and Messner resolved to challenge this certainty, drawing on years of intensive training and high-altitude experience.
On May 8, 1978, after reaching the summit at 8,848 metres, Habeler descended to Camp IV in barely an hour. Exhausted and disoriented by the lack of oxygen, he slipped repeatedly, falling and picking himself up in a semi-conscious state. He later described the descent as a relentless struggle against unconsciousness and death.
In 1975, three years before their feat on Everest, Habeler and Messner had already broken a taboo by climbing Gasherbrum I (8,080 m, Pakistan) without artificial oxygen. It was the first time in the history of mountaineering that a summit above 8,000 metres had been reached without oxygen cylinders, opening the door to a revolution in Himalayan climbing practices.
In 1974, Habeler and Messner climbed the formidable north face of the Eiger in just ten hours, setting a world record. This achievement earned them an international reputation and already embodied their shared philosophy: climb light, fast, and without artificial assistance.
Born and raised in Mayrhofen in the Austrian Zillertal, Habeler first worked as a ski instructor and mountain guide in his home valley. Far from the image of a solitary adventurer roaming the world, he remained deeply rooted in his region, continuing to guide clients in the Alps between Himalayan expeditions.
Primary Sources
Peter Habeler recounts hour by hour the final ascent of May 8, 1978: the altered state of consciousness, each step becoming a struggle, and the certainty of approaching the absolute limits of the human body without resorting to any artificial aid.
The physiological data collected before and after the ascent confirm that Habeler and Messner reached the summit without supplemental oxygen, with critical oxygen saturation levels, but without any documented permanent neurological damage.
Messner describes the rope team formed with Habeler as a partnership built on absolute trust and a shared philosophy: reaching summits in pure alpine style, without artificial oxygen and without high-altitude porters.
On May 10, 1978, the Austrian press agency officially announced the success of the oxygen-free ascent, emphasizing that the feat fundamentally calls into question established medical certainties about human physiological limits at high altitude.
Key Places
Peter Habeler's hometown, nestled in the Zillertal valley in the Austrian Tyrol. He was born there in 1942 and spent his entire career as a mountain guide and ski instructor, remaining deeply attached to his Alpine roots.
The world's highest peak (8,848 m), and the setting of the historic achievement of 8 May 1978. The oxygenless ascent accomplished here by Habeler and Messner permanently transformed our understanding of the limits of human physiology.
The eleventh-highest peak in the world (8,080 m), in the Karakoram range. In 1975, Habeler and Messner made the first ascent of an 8,000-metre peak without supplemental oxygen here, foreshadowing their 1978 feat.
A legendary wall in the Bernese Alps (3,970 m), considered one of the most dangerous in Europe. In 1974, Habeler and Messner set a speed record by climbing it in ten hours, launching their international reputation as an extraordinary rope team.
The starting point for summit expeditions via the Nepalese side, located at 5,364 metres in the Khumbu Glacier. Habeler and Messner spent several weeks there acclimatising before their historic 1978 ascent.





