Orbiting Earth at around 27.000 km/h, the International Space Station is one of humanity’s greatest engineering achievements, but also one of the most unforgiving places ever built. Astronauts and mission controllers recount moments when routine work suddenly became a fight for survival: a spacesuit filling with water, toxic ammonia spraying across a spacewalker, dangerous temperature extremes, radiation, fire, contamination and the constant threat of collision. The series reveals how every mission depends on training, improvisation and split-second decisions in an environment where even a small failure can become fatal. Across the two episodes, presented here together in a single uninterrupted video, the danger escalates from the hazardous construction and maintenance of the station to the growing risks of life aboard it. Astronauts face micrometeoroids and space debris travelling at lethal speeds, docking emergencies and system failures, culminating in the extraordinary 2021 incident when the newly arrived Nauka module unexpectedly fired its thrusters and sent the entire ISS rotating out of control. With communications at risk and the structure under immense strain, crews in orbit and controllers on Earth must work together to regain control. The result is a gripping story of courage, science and survival inside a machine that has kept humans continuously living in space for more than two decades.
Professor Brian Cox joins Chris Lintott and the team to investigate one of the most intriguing new mysteries in modern astronomy. Observations from the James Webb Space Telescope have revealed hundreds of compact, extraordinarily bright objects known as “little red dots”, appearing less than a billion years after the Big Bang. Many may hide rapidly growing supermassive black holes, raising a profound question: how could such enormous objects have formed so early in cosmic history? The journey begins with the strange physics of black holes themselves, from event horizons and singularities to the supermassive black hole at the centre of the Milky Way and the gigantic black hole in the galaxy M87. With cosmologist Emma Chapman and Professor Sadegh Khochfar, the programme explores radical explanations for these ancient monsters, including primordial black holes born soon after the Big Bang and massive black holes formed directly from collapsing clouds of gas, bypassing stars altogether. Cutting-edge computer simulations recreate the first billion years of the universe and reveal how the earliest galaxies and black holes may have emerged within the cosmic web. These discoveries are forcing astronomers to reconsider not only how supermassive black holes grow, but how galaxies and the early universe itself evolved.
Captured during her Manchester shows on a sold-out world tour, this concert film brings Billie Eilish closer than ever, turning the stage into a dark, emotional and visually hypnotic space where every whisper, scream, silence and movement feels intensely personal. Co-directed with James Cameron, the film transforms a live performance into a cinematic experience, surrounding the audience with the atmosphere, scale and intimacy of one of the most distinctive artists of her generation. More than a concert recording, it becomes a journey through the sound and emotion of Hit Me Hard and Soft, where fragile ballads, explosive moments, dreamlike lighting and the roar of thousands of fans collide in one powerful experience. Billie moves between vulnerability and confidence, loneliness and connection, softness and strength, creating a show that feels both massive and intimate. The film invites viewers not just to watch the performance, but to feel as though they are part of it.
In the final two episodes, Dean Potter’s dream of pushing free solo climbing beyond anything seen before collides with the arrival of Alex Honnold, a younger climber capable of taking the sport into terrifying new territory. As both men circle the impossible challenge of El Capitan, Dean is forced to confront not only a rival, but the fear that his place at the edge of climbing history may be slipping away. What begins as a battle for greatness becomes something far more personal: A struggle with ego, identity, isolation and the dangerous need to keep proving himself when the world is already watching. As Dean’s mental health declines and some of his closest supporters begin to drift away, he takes a risky job in China and seems to move even closer to the edge. But a new relationship gives him a fragile sense of grounding, and his lifelong dream of flight finally comes into focus through the radical world of wingsuit flying. The final chapters become both breathtaking and haunting, following a man who searched for freedom in the air, in the mountains and in the spaces where fear becomes almost spiritual. Intimate, tense and deeply emotional, they reveal the beauty and tragedy of a life lived in pursuit of the impossible.
In the final two episodes, the documentary investigates the immense geological forces that continue to reshape our planet. Scientists and adventurers travel to Guatemala's Volcán de Fuego, one of the most active volcanoes on Earth, capturing spectacular eruptions, rivers of lava, and towering ash clouds from astonishingly close range. Along the way, the series reveals how volcanoes are formed, how tectonic plates trigger earthquakes and tsunamis, and how volcanic activity can even create entirely new islands in the middle of the ocean. The journey then turns to one of nature's most breathtaking displays: the Aurora Borealis. In the frozen landscapes of northern Sweden, scientists uncover how powerful storms on the Sun send streams of charged particles towards Earth, illuminating the night sky with vast curtains of color. Combining stunning footage with cutting-edge research, the documentary explores solar activity, space weather, eclipses, and the remarkable connection between our planet and the forces that originate far beyond its atmosphere.
Physicist Bob Lazar claims he was recruited in the late 1980s to work at a secret facility known as S4, near Area 51, where his task was to study and reverse-engineer advanced craft of unknown origin. With a background linked to Los Alamos, he describes in detail the technology he encountered, including propulsion systems unlike anything publicly known and materials that seem to defy conventional physics. Through his testimony, archival footage and interviews, the film reconstructs what he says happened inside one of the most secretive programs ever alleged. As his story unfolds, it raises concrete questions about classified research, government secrecy and whether some technological breakthroughs may already exist beyond public reach.
Across the two episodes, presented here together in a single uninterrupted video, the danger escalates from the hazardous construction and maintenance of the station to the growing risks of life aboard it. Astronauts face micrometeoroids and space debris travelling at lethal speeds, docking emergencies and system failures, culminating in the extraordinary 2021 incident when the newly arrived Nauka module unexpectedly fired its thrusters and sent the entire ISS rotating out of control. With communications at risk and the structure under immense strain, crews in orbit and controllers on Earth must work together to regain control. The result is a gripping story of courage, science and survival inside a machine that has kept humans continuously living in space for more than two decades.