E5 • Little Green Men

E1 • Killer Rocks

Earth is hit by 100 tons of rock from space every day. Most burn up in the atmosphere, but a single rock wiped out the dinosaurs. Could it happen again?

44m • 2021

Earth is hit by 100 tons of rock from space every day. Most burn up in the atmosphere, but a single rock wiped out the dinosaurs. Could it happen again?

E2 • Dark Star

Until recently, black holes were only theoretical. Now, scientists know that millions exist and some of them have the potential to be lethal to earth.

44m • 2021

Until recently, black holes were only theoretical. Now, scientists know that millions exist and some of them have the potential to be lethal to earth.

E3 • Death Ray

When a massive star dies it can direct a blast of radiation that would obliterate life of earth. What are the chances of this event occurring?

44m • 2021

When a massive star dies it can direct a blast of radiation that would obliterate life of earth. What are the chances of this event occurring?

E4 • Cosmic Scrap

More than 100 million pieces of small space debris are floating around the Earth. A big collision between two of these objects in low Earth orbit could be catastrophic.

44m • 2021

More than 100 million pieces of small space debris are floating around the Earth. A big collision between two of these objects in low Earth orbit could be catastrophic.

E5 • Little Green Men

Aliens could be lethal killers who want to invade and plunder our world. A team of experts investigate extra-terrestrial beings and their threat to human life.

44m • 2021

Aliens could be lethal killers who want to invade and plunder our world. A team of experts investigate extra-terrestrial beings and their threat to human life.

E6 • Big Sleep

How will the universe end? Experts discuss the many possible ways that could spark the beginning of the end for the universe including when and why it would happen.

44m • 2021

How will the universe end? Experts discuss the many possible ways that could spark the beginning of the end for the universe including when and why it would happen.