Quick Summary
Y Gofod – Discover the mysteries of the planets and the Moon, learn how astronauts communicate across space, and find out what makes rockets roar, all in this engaging S4C HD documentary.
About This Program
Programme Overview
Y Gofod is a captivating episode broadcast on S4C HD that invites viewers on an immersive journey through the vastness of space. This British television offering delves into the mysteries of the planets that populate our Universe, explores the unique characteristics of the Moon, and reveals the sophisticated ways astronauts maintain communication while beyond Earth’s atmosphere. The episode also provides a clear, engaging explanation of how rockets generate the thrust needed to escape gravity, making complex science accessible to a wide audience.
What to Expect
The episode begins with a panoramic overview of the Solar System, highlighting each planet’s distinct features—from the scorching surface of Mercury to the swirling storms of Jupiter. Viewers are then guided to the Moon, where the programme examines its geological history, its role in shaping tides, and its importance as a stepping‑stone for future human exploration. Following this, the focus shifts to the technology that connects astronauts with mission control, illustrating the use of radio waves, satellite relays, and real‑time data transmission that keep crews safe and informed during missions.
Why Watch
For UK television audiences seeking both education and entertainment, Y Gofod offers a balanced blend of stunning visuals and clear, concise narration. The episode’s approachable style makes it ideal for families, school groups, and anyone with a curiosity about space. By demystifying the science behind rockets—explaining propulsion, fuel combustion, and the engineering challenges of launch—the programme empowers viewers with a deeper appreciation of the ingenuity behind modern space travel.
Technical Insight
In addition to the scientific content, the episode showcases the collaborative effort between scientists, engineers, and astronauts. It highlights how communication networks are designed to overcome the vast distances of space, ensuring that messages travel reliably between Earth and orbiting vessels. The segment on rockets breaks down the stages of a launch, illustrating how each phase contributes to overcoming Earth’s gravitational pull, and underscores the continual advancements that keep the field of aerospace engineering at the forefront of innovation.
Ein Byd Bach broadcasts on S4C HD at 9:05am, Thursday, 6 November 2025. (Subtitles, repeat)

