End of an Era: The Final Shuttle Launch • 1989 • episode "6/10" • The Sagan Series

4:39

The shape, contents and future of the universe are all intricately related. We know that it's mostly flat; we know that it's made up of baryonic matter (like stars and planets), but mostly dark matter and dark energy; and we know that it's expanding constantly, so that all stars will eventually burn out into a cold nothingness. Renée Hlozek expands on the beauty of this dark ending.

TED-Ed • Astronomy

42:00

We strip apart black holes, one of the most feared objects in the universe, and tear off swirling galaxies of stars, planets, and cosmic dust layer by layer to explore the secrets of these hungry menaces lurking right on our cosmic doorstep.

1/6 • Strip the Cosmos • 2014 • Astronomy

43:01

The story of how a large aerospace company, BAE Systems, began a secret project to counter the force of gravity while NASA simultaneously ran a similar 'Breakthrough Propulsion Physics' program.

S1E6 • Space's Deepest Secrets • 2016 • Astronomy

43:47

An adventure spanning billions of years into the evolution of life.

1/13 • Cosmos: Possible Worlds • 2020 • Astronomy

18:33

Our Sun could erupt at any moment, spewing a vast wave of charged particles toward Earth that could leave millions of people without power for up to a year. Learn about the latest missions to protect our planet from this potentially devastating threat.

2017 • Astronomy

42:01

The possibility of a human civilization on Mars has seemed like a fantasy -- until now. We go behind-the-scenes at SpaceX, where Elon Musk shows us just how real this fantasy can be.

3/6 • Mars: The Secret Science Series 1 • 2014 • Astronomy