On Tuesday, October 6 at 8:45 p.m., the documentary Pluto: Mysteries at the Boundaries of Solar System will premiere on SCIENCE & VIE TV, revealing the dwarf planet in a way you have never seen before. For decades, Pluto was little more than a faint point of light barely visible even through the most powerful telescopes. A distant, icy world located several billion kilometers from Earth, Pluto was discovered in 1930 by American astronomer Clyde Tombaugh. Named after the Roman god of the Underworld, it was seen as a dark, mysterious object, seemingly from another universe. That perception changed dramatically with the arrival of a space probe. In January 2006, NASA launched the New Horizons mission with the ambitious goal of reaching Pluto and capturing its first close-up images. This journey, spanning nearly nine years through the vast emptiness of space, finally brought the spacecraft near Pluto in July 2015. However, the mission nearly failed: the ground team lost contact with the spacecraft, and it almost passed Pluto without transmitting any data. Fortunately, contact was eventually reestablished, and the images and data that followed stunned scientists around the world. The images from New Horizons show a Pluto far more complex than anyone had imagined. Rather than a uniform, lifeless surface, the dwarf planet features ice mountains, canyons, vast plains, and craters, all covered in snow and ice. The colors—reds and whites—are striking and unexpected. At the center of Pluto's visible surface is a large heart-shaped region, composed of a solid nitrogen glacier with no craters, suggesting that the surface is constantly changing and renewing itself. Scientists are puzzled by how such geological activity can occur on a world with temperatures as low as -230°C. They have identified features that resemble volcanoes, but instead of lava, frozen water appears to flow like molten rock. The presence of ammonia in the surface composition might help explain this, as it lowers the freezing point of water. The source of the heat driving these processes remains unclear, with theories ranging from radioactive elements in the core to a unique type of snow that could act as an insulator. This heat raises an intriguing question: could Pluto hide a liquid water ocean beneath its icy crust? Additionally, the New Horizons mission has provided the first detailed images of Pluto's five moons. The largest, Charon, is so massive that the two bodies orbit around a shared center point, resembling a binary system rather than a planet and its satellite. Pluto's atmosphere, complex and layered, was studied in Earth-based laboratories and may be responsible for its reddish hue. It also contains the building blocks for essential molecules for life, suggesting that Pluto might meet some of the conditions necessary for life to emerge.