4 Multiverses You Might Be Living In

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

14:20

Mars One plans one-way missions to Mars; the goal is not simply to explore, but to colonize the red planet. A one-way trip saves billions and eliminates the risk of a return voyage. But can the crew survive in such utter isolation? Some candidates for the mission reflect on this challenge.

S1E5 • Destination Mars • 2015 • Astronomy

11:13

Worried about black holes? Consider this: Every time you accelerate - you generate an event horizon behind you. The more you accelerate away from it the closer it gets. Don’t worry, it can never catch up to you, but the Unruh radiation it generates sure can.

PBS Space Time • 2018 • Astronomy

42:29

We don't yet know where the edge of the universe is or what happens there; but thanks to cutting-edge technology and new discoveries, experts might finally reveal the secrets of the phenomena that can be found in deepest reaches of the cosmos.

S8E7 • How the Universe Works • 2020 • Astronomy

58:58

The oceans define the earth. They are crucial to life and we used to think that they were unique to our blue planet. But we were wrong. It has recently been discovered that there are oceans all over our solar system, and they are very similar to our own. And now scientists are going on an epic journey in search of new life in places that never seemed possible. Nasa is even planning to dive to the depths of a strange, distant ocean in a remarkable submarine. Horizon discovers that the hunt for oceans in space is marking the dawn of a new era in the search for alien life.

Horizon • 2016 • Astronomy

50:34

The Apollo equipment has sat abandoned on the lunar surface for over 40 years. Now there is a renewed excitement and drive to return to the moon. This time, not to just plant a flag, but to colonize. How would we accomplish this? And why would we do it?

2019 • Astronomy