Venus is Earth's mysterious twin. A world that is about the same size as our home planet, and that formed in the same region of space, out of the same basic building blocks. We have been mesmerised by our closest neighbour since ancient times. Once we knew that Venus was planet and not a star, we began to wonder what life on Venus might be like. Was this an ocean world, shrouded in thick clouds, with verdant jungles, teeming with insects and dinosaurs?
The only way humankind could uncover the true nature of Venus, was to go there. And from the very birth of the space age, Venus would be the battlefront for our first bold steps into the cosmos. But this was to be a battle for space supremacy between two heavily armed super powers, each determined that it would be the one to get to Venus first. This fierce, rapidly evolving competition, was propelled by a furious determination to develop missiles that could kill millions of people.
This film traces humanity's first milestones in the conquest of our solar system. From the first planetary flyby with Mariner 2. The breathtaking Soviet Venera missions, that would become the first manmade objects to land on the surface of another planet. To the spare-parts Magellan spacecraft, built from the leftovers from other NASA missions. A spacecraft which would finally reveal a stunning global view of our enigmatic neighbour.
The story is joyfully told by scientists, engineers and historians who have invested their careers in understanding Venus. But unravelling the story Earth's twin, has forced us to accept some dark truths... Venus is like hell, with an atmosphere so dense that it is more like a liquid than a gas, which would crush most military submarines like a flimsy tin can. Venus has the hottest surface of any planet in the solar system. Venus was not paradise.
But how could this have happened? How could two planets, so seemingly similar, take such different paths? And if we cannot understand Venus, how can we really understand Earth?