"Space: 1999" is a British science fiction television series that aired from 1975 to 1977. The show is set in the year 1999, where a catastrophic nuclear explosion on the Moon causes it to break away from Earth's orbit. The inhabitants of Moonbase Alpha, a lunar research station, must navigate the challenges of survival in deep space as they encounter various alien civilizations and phenomena. The series stars Martin Landau as Commander John Koenig and Barbara Bain as Dr. Helena Russell. Each episode features a mix of adventure, drama, and philosophical themes, exploring the human condition and the unknowns of the universe. Despite its short run, "Space: 1999" has gained a cult following and is remembered for its ambitious storytelling and visual effects.