Decide To Listen • 1989 • episode "5/10" • The Sagan Series

45:15

Artificial selection is one example, eyes another, of the well-documented and inescapable process of evolution--change in a population of species over time--by natural selection. These are some of the things that molecules do.

S1E2 • Cosmos: A Spacetime Odyssey • 2014 • Astronomy

47:03

Astronaut Chris Hadfield has seen the bullet holes left by asteroids on Earth's surface. Our planet is vulnerable. Could we ever survive elsewhere?

6/10 • One Strange Rock • 2018 • Astronomy

59:05

The dream of sending humans to Mars is closer than ever before. In fact, many scientists think that the first person to set foot on the Red Planet is alive today. But where should the first explorers visit when they get there? Horizon has gathered the world's leading experts on Mars and asked them where would they go if they got the chance - and what would they need to survive? Using incredible real images and data, Horizon brings these Martian landmarks to life - from vast plains to towering volcanoes, from deep valleys to hidden underground caverns. This film also shows where to land, where to live and even where to hunt for traces of extraterrestrial life.

Horizon • 2017 • Astronomy

75:30

In February 2019, after hurtling 300 million kilometers from Earth, the Japanese space probe Hayabusa 2 landed on the asteroid Ryugu. We follow the team behind the mission, as they sample parts of the asteroid and return it to our planet.

2020 • Astronomy

10:16

In today's Crash Course Astronomy, Phil takes a look at the explosive history of our cosmic backyard. We explore how we went from a giant ball of gas to the system of planets and other celestial objects we have today.

#9 • Crash Course Astronomy • Astronomy

42:01

NASA’s Curiosity mission is on a quest to find life on Mars, but what they uncover could reveal far more than what anyone expected

S1E2 • Mars: The Secret Science Series 1 • 2014 • Astronomy