00:00:00 – Asteroid alert: Earth is constantly threatened by asteroids and other space debris. The vast majority of these impacts are minimal and have almost no effect on the planet. However, during its lifetime, Earth was hit by asteroids that caused such extensive damage that it changed the planet for centuries. How do we know when the next major impact might occur? Is there anything we can do to stop it?

00:45:08 – The secrets of Saturn: From 2004 to 2017, the Cassini-Huygens spacecraft launched in 1997 orbited Saturn. It returned a wealth of knowledge about this elusive planet, including the secrets of its rings and its largest moon, Titan.

01:30:14 – Space Weather: The Earth's magnetic field is vitally important not only to the planet, but also to life on the planet. This field provides the ideal conditions to allow life to thrive on Earth and protect us from dangerous space debris. But what would life on Earth look like in the future when this field dangerously weakens?

02:15:32 – Solar Storm: The power of the sun is both impressive and terrifying. Although it is 147.7 million kilometers away, the Earth still feels the full effects. An example of this are solar storms, where explosions on the surface of the sun send radiation toward Earth.

03:00:51 – Great Lakes: The Great Lakes are an incredible natural resource. A fifth of the world's drinking water is stored there, and they contain enough water to flood mainland America up to 9 feet deep. How did such large bodies form on Earth? And how are rising water levels affecting these Great Lakes?

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