Venus is a hellish alien world believed to be impossible to extraterrestrial life; but new discoveries reveal shocking evidence within its deadly atmosphere and on its strange surface, all pointing to a possible future for planet Earth.
Experts aim to uncover what is hidden beneath Jupiter's violent storms. The story of how humans built machines that not only survived the perils of Jupiter, a massive and dangerous planet surrounded by a wreath of deadly radiation, but revealed its innermost secrets.
2019 • Astronomy
In the darkest reaches of the Solar System, the dwarf planet Pluto lies in a previously unknown region of space until an underground group of scientists took on the establishment and sent a spacecraft to the most distant world that's ever been explored.
2021 • Astronomy
In 2014, the International Space Station had to move three times to avoid lethal chunks of space debris and there is an increasing problem of satellites mysteriously breaking down. With first-hand accounts from astronauts and experts, Horizon reveals the scale of the problem of space junk. Our planet is surrounded by hundreds of millions of pieces of junk moving at 17,000 miles per hour. Now the US government is investing a billion dollars to track them, and companies around the world are developing ways to clear up their mess - from robot arms to nets and harpoons. Horizon investigates the science behind the hit film Gravity and discovers the reality is far more worrying than the Hollywood fiction.
In July 1969, history was made as 600 million people watched Neil Armstrong's giant leap for mankind on the surface of the moon. But behind these iconic images is an untold story. Now, 50 years later, Discovery and Science Channel celebrate the Apollo 11 moon landing with a two-hour television event, APOLLO: THE FORGOTTEN FILMS, that tells the complete story of this most audacious of missions. Featuring forgotten and never-before-seen footage from events surrounding the landmark mission, the documentary by Duncan Copp traces the decade's worth of effort involving half a million scientists that was required to enable that "one giant leap for mankind". The archives reveal the incredible lengths an army of engineers, scientists and astronauts went to, to achieve America's greatest technological feat.
2019 • Astronomy
Active galaxies pour out lots of energy, due to their central supermassive black holes gobbling down matter. Galaxies tend not to be loners, but instead exist in smaller groups and larger clusters. Our Milky Way is part of the Local Group, and will one day collide with the Andromeda galaxy. Clusters of galaxies also clump together to form superclusters, the largest structures in the Universe. In total, there are hundreds of billions of galaxies in the Universe.
The Orion Nebula is a interstellar cloud situated in the Milky Way, south of Orion's Belt. In a 2-year effort, scientists create a mosaic of over 100 images at the tip of Orion's sword to discover four massive young stars. What do they tell us about how planetary systems are formed?
Where and how are we going into space post Space Shuttle? Further travel in space is inhibited by the challenges of gravity wells and the science and cost of developing vehicles that can transcend them. How can the moon possibly help with this problem and move space exploration to the next level?