The Frontier Is Everywhere • 1989 • episode "1/10" • The Sagan Series

29:00

James May takes a journey of discovery across the universe.

S1E2 • James May's Things You Need to Know • 2011 • Astronomy

10:35

Last week we covered multiple star systems, but what if we added thousands or even millions of stars to the mix? A star cluster. There are different kinds of clusters, though. Open clusters contain hundreds or thousands of stars held together by gravity. They’re young, and evaporate over time, their stars let loose to roam space freely. Globular clusters, on the other hand, are larger, have hundreds of thousands of stars, and are more spherical. They’re very old, a significant fraction of the age of the Universe itself, and that means their stars have less heavy elements in them, are redder, and probably don’t have planets (though we’re not really sure).

35 • Crash Course Astronomy • 2015 • Astronomy

43:01

A soaring quest through the solar system’s exotic and hidden water realms, from the deep seas below the icy crust of Europa to the vast prehistoric oceans that once existed on Mars billions of years ago.

S1E4 • Space's Deepest Secrets • 2016 • Astronomy

18:46

This year we said goodbye to one of our most intrepid planetary explorers, the Opportunity rover. Take a look back at its storied 15-year mission on Mars, and how it revolutionized our understanding of not just the red planet, but our solar system at large.

Breakthrough • 2019 • Astronomy

42:29

Uranus and Neptune are mysterious, icy worlds at the edge of the solar system; new discoveries reveal that these strange planets may have helped start life on Earth.

S6E5 • How the Universe Works • 2018 • Astronomy

42:28

New discoveries might finally reveal how supermassive black holes are made, and using the latest technology, experts are on the verge of understanding how these monsters grow and how they affect life on our planet.

Space's Deepest Secrets • 2019 • Astronomy