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Asteroids - The Good, the Bad and the Ugly

Horizon 2010-2011
Episode 6 of 15

Famed for their ability to inflict Armageddon from outer space, asteroids are now revealing how they are responsible for both life and death on our planet.

Famed for their ability to inflict Armageddon from outer space, asteroids are now revealing the secrets of how they are responsible for both life and death on our planet.

Armed with an array of powerful telescopes, scientists are finding up to 3,000 new asteroids every night. And some are heading our way.

But astronomers have discovered that it's not the giant rocks that are the greatest danger - it's the small asteroids that pose a more immediate threat to Earth.

Researchers have explained the photon propulsion that send these rocks across space, and have discovered that some asteroids are carrying a mysterious cargo of frost and ice across the solar system that could have helped start life on Earth.

1 hour

Last on

Thu 28 Jun 2018 23:00
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Music Played

Timings (where shown) are from the start of the programme in hours and minutes

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Credits

Narrator Peter Firth
Producer Dan Kendall
Director Dan Kendall

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