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

42:29

New discoveries are challenging everything we know about black holes -- astronomers are beginning to question if they even exist. The latest science tries to explain how they work & what they look like, despite the fact we've never actually seen one.

How the Universe Works • 2018 • Astronomy

48:10

We know what 4% of the Universe is made of. But what about the rest?

Astronomy

51:12

Join astronomers and astrophysicists as they probe light years beyond the Milky Way, in Understanding The Universe, part of Discovery's popular television series.

Astronomy

9:50

Join Phil for a tour of our capital-M Moon, from surface features, inside to the core, and back in time to theories about its formation.

12 • Crash Course Astronomy • Astronomy

43:43

Brilliantly narrated by film and television legend Sir Patrick Stewart, Journey To Space gives a sweeping overview of humanity’s accomplishments in space, as well as our ongoing activities and future plans. Journey To Space puts into historical context the magnificent contributions made by the Space Shuttle program and its intrepid space pioneers. It uses the most spectacular space footage – including unique views of Earth and operations in space – such as deploying and repairing the Hubble Space Telescope. It then goes on to show how the shuttle launched and assembled the International Space Station (ISS). Together, these programs have taught us how to live, build and conduct scientific experiments in space. The ISS will continue operating in space until 2024, and the film shows how it is building a foundation for the next giant leaps into space, concluding with a fascinating, realistic scenario of how astronauts will actually get to Mars, live there for long durations, and then return home after a two-and-a-half-year mission.

2015 • Astronomy

9:45

In this episode of Crash Course Astronomy, Phil takes you through the cause and name of the Moon's phases.

#4 • Crash Course Astronomy • Astronomy