Impossible Challenge • 2019 • episode "S1E1" • Apollo Back to the Moon

83:44

Nasa intends to send astronauts to Mars. To succeed, crew members will have to overcome unprecedented, life-threatening challenges, and while many of these hazards are physical, the most elusive are psychological. Throughout the expected three-year absence, crew members won't be able to communicate with Earth in real time due to the immense distance. The psychological impact of this level of disconnectedness and isolation - both from mission control and loved ones - is impossible to predict and endangers the mission itself. Directed to mitigate this threat is Dr Al Holland, a Nasa psychologist whose job is to keep astronauts mentally stable in space. The Longest Goodbye follows Holland, rookie astronauts Kayla Barron and Matthias Maurer and former astronaut Cady Coleman, among others, as they grapple with the tension between their dream of reaching new frontiers and the basic human need to stay connected to home.

2023 • Astronomy

43:56

Explore the story behind the man who found the first clues to life's beginnings on Earth.

3/13 • Cosmos: Possible Worlds • 2020 • Astronomy

42:29

Shocking new evidence has convinced some of the world's greatest physicists that the universe is a hologram. Using cutting-edge technology, they investigate the secrets of black holes and space-time to build the case for this game-changing discovery.

Space's Deepest Secrets • 2019 • Astronomy

43:01

A spectacular journey to the birth of stars and matter a billion years after the big bang. Scientists look for evidence of an extraordinary phenomenon known as the Cosmic Dawn, a dramatic moment in the history of the universe when the very first stars were created.

2015 • Astronomy

42:25

A milestone in physics: In 2015, scientists proved the existence of gravitational waves. These waves travel billions of light-years through space, eventually reaching Earth and bringing us insights that were previously unattainable.

2021 • Astronomy

42:00

Is there another Earth out there with liquid oceans, rocky continents and life like us? Astronomers seek the answer with spectroscopy, direct imaging and telescopes. They hope to find evidence of atmospheres, magnetospheres and signs of life.

S3E9 • How the Universe Works • 2014 • Astronomy