Per Aspera Ad Astra • 1989 • episode "4/10" • The Sagan Series

59:02

Brian Cox considers the nature of time. He explores the cycles of time that define the lives of humans on Earth, and compares them to the cycles of time on a cosmic scale.

1/4 • Wonders of the Universe • Astronomy

10:13

Phil starts the planet-by-planet tour of the solar system right here at home, Earth.

11 • Crash Course Astronomy • Astronomy

9:35

Finding alien life on a distant planet would be amazing news - or would it? If we are not the only intelligent life in the universe, this probably means our days are numbered and doom is certain.

In a Nutshell • 2018 • Astronomy

6:21

The universe is unbelievably big – trillions of stars and even more planets. Soo… there just has to be life out there, right? But where is it? Why don’t we see any aliens? Where are they? And more importantly, what does this tell us about our own fate in this gigantic and scary universe?

1/2 • The Fermi Paradox • Astronomy

58:31

Four astronomers celebrate 50 years of work and friendship by going on a road trip to revisit some of the world's greatest observatories. In California, a world leader in observational astronomy at a time when America's space programme was at its height, the astronomers spent their formative years developing friendships that would last a lifetime, and making scientific discoveries that would change the course of history. Together they represent the most productive period astronomy has ever had. Their journey through the southwestern United States allows them to see once again the places and landscape they explored as young men. Now in their 70s, they share their reflections on a life spent looking at the universe. Star Men celebrates the history of stargazing: the inventions and discoveries that have enabled us to learn so much about the universe, but more importantly to understand how much more we have yet to discover.

2016 • Astronomy

47:01

Our rock is special - it's alive. Somehow our planet cooked up stardust and made life. But how did that begin and is it likely elsewhere? Astronaut host – Mae Jemison.

4/10 • One Strange Rock • 2018 • Astronomy