Triumph and Tragedy follows the story of NASA. With repeated triumphs and new challenges come increasing risk, until loss breaks the pattern.
Video documentaries about science and technology
This series offers a fresh look at an amazing organization and mankind's quest to understand the universe.
The Space Age: Nasa's Story offers a fresh look at an amazing organisation and mankind's quest to understand the universe
For fifty years, the Search for Extra Terrestrial Intelligence (SETI) has been scanning the galaxy for a message from an alien civilisation.
May 9 2016 sees one of the astronomical highlights of the year - a transit of Mercury across the sun, the best opportunity to observe this phenomenon until 2049.