Episode 1 - Secrets Of The Black Hole

Is there more to black holes - nature's ultimate abyss - than just darkness?

Episode 2 - Inside The Sun

Unraveling the secrets that lie beneath the surface of Earth's powerhouse.

Episode 3 - Killer Asteroids

Is there more to these deadly space rocks than the next Armageddon?

Episode 4 - Expedition Mars

Unraveling the mysteries surrounding this once Earth-like world

Episode 5 - Alien Worlds

Is there anybody out there?

Episode 6 - Hunting A Comet

Unravelling the sectors of these frozen travellers from the furthest reaches of the solar system.

Episode 3 - Killer Asteroids

Asteroids are constantly threatening Earth, with thousands lurking too close to our planet for comfort. We travel to Arizona to meet the team who spend every night scanning the heavens for asteroids that could threaten earth, and reveal how scientists test an intense laser beam they hope could one day deflect an asteroid away from Earth. 

But is there more to these deadly space rocks than the next Armageddon? At NASA we see astronauts train in weightless conditions for the first manned mission to an asteroid,  and discover how  asteroids could become cosmic gas stations to refuel rockets on mission into deep space. 

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for Discovery UK
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