Meet Perseverance, NASA's latest rover, as it heads to Mars to answer one question: did life exist on the red planet? On the way, it will lay the foundation for human exploration of our closest neighbour. Today, Mars is hostile to life. It's too cold for water to stay liquid on the surface, and the thin atmosphere lets through high levels of radiation, potentially sterilizing the upper part of the soil. But it wasn't always like this. Some 3.5 billion years ago or more, water was flowing on the surface. It carved channels still visible today and pooled in impact craters. A thicker carbon dioxide atmosphere would have blocked more of the harmful radiation. The Mars 2020/Perseverance rover is designed to better understand the geology of Mars and seek signs of ancient life. The mission will collect and store a set of rock and soil samples that could be returned to Earth in the future. It will also test new technology to benefit future robotic and human exploration of Mars, as the Ingenuity Helicopter.
When ancient Greece fell into decline, mathematical progress stagnated as Europe entered the Dark Ages, but in the East mathematics reached new heights. In the second episode, Du Sautoy explores how maths helped build imperial China and discovers how the symbol for the number zero was invented in India. He also looks at the Middle Eastern invention of algebra and how mathematicians such as Fibonacci spread Eastern knowledge to the West.
Beneath the modern streets of Rome lies a city of breathtaking scale and ambition, once the heart of an empire that shaped the world. In this 15-part journey, archaeologist Dr. Darius Arya becomes your guide into a vivid time machine, where stunning CGI reconstructions resurrect the capital in all its glory. From the steamy elegance of vast bath complexes to the roar of chariot races, from awe-inspiring temples to political halls where history was forged, each episode reveals how engineering brilliance, artistic mastery, and human will transformed humble hills into the Eternal City. This is not just a tour of ruins—it’s Rome as its citizens once knew it.
An uplifting, boots-on-the-ground chronicle of ten first-time triathletes grinding toward Ironman 70.3 Swansea: dawn swims, wind-chewed bike rides, and long, lonely runs that turn strangers into a squad. Guided by local coaches and an irrepressible community spirit, they juggle work, family, injuries, and self-doubt while learning that endurance is as much about heart as it is about heart-rate. Shot with brisk intimacy and a clear love for its subjects, the film leans into small victories—clipless-pedal triumphs, cold-water courage—and the way a race can remake a life. By race day, the question isn’t who podiums—it’s how far determination, teammates, and a town’s backing can carry ordinary people beyond their limits.
In Episodes 4 and 5, you can see how the most universal human desire—to bring new life into the world—collides with science, culture, and the limits of our own biology. From groundbreaking fertility treatments that promise hope to countless families, to the hidden struggles behind why so many people still can’t conceive, these episodes reveal the fascinating and often heartbreaking reality of reproduction today. You’ll also witness the raw, unfiltered experience of itself: the intense pain, the unexpected complications, and the inspiring ways doctors and parents try to make this incredible ordeal safer and more humane.
In the concluding episode of the series, Jim encounters ever larger cosmic structures to reveal the latest breakthroughs in our understanding of the universe. For example, Jim comes face to face with our galactic home, the Milky Way, a monstrous structure sculpted by the gravitational forces of dark matter. Jim finds out from pioneering researcher Adrian Fabian about the black hole at its centre, whose strange behaviour includes emitting the lowest note that can be heard in the cosmos. At an even greater scale, Jim encounters huge structures such as the Laniakea Supercluster, of which the Milky Way is only a tiny part. Then there’s the 'Giant Arc', a collection of galaxies that account for more than three per cent of the observable universe. Jim learns from its discoverer, British PhD student Alexia Lopez, that this gargantuan structure is forcing scientists to reassess their theory of how the universe evolves and may overturn some of the most fundamental principles in physics.
Today, Mars is hostile to life. It's too cold for water to stay liquid on the surface, and the thin atmosphere lets through high levels of radiation, potentially sterilizing the upper part of the soil. But it wasn't always like this. Some 3.5 billion years ago or more, water was flowing on the surface. It carved channels still visible today and pooled in impact craters. A thicker carbon dioxide atmosphere would have blocked more of the harmful radiation. The Mars 2020/Perseverance rover is designed to better understand the geology of Mars and seek signs of ancient life. The mission will collect and store a set of rock and soil samples that could be returned to Earth in the future. It will also test new technology to benefit future robotic and human exploration of Mars, as the Ingenuity Helicopter.