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Space debris danger

Duration: 02:59

There are an estimated 35 million objects orbiting the Earth, making space junk a growing problem. Dara O Briain and the people tracking it at the UK Space Agency explain why.

Available since: Thu 10 Jan 2013

This clip is from

Stargazing LIVE Series 3, Episode 3

5/6 Dara and Brian discuss meteors, asteroids and comets and their surprising secrets.

First broadcast: 10 Jan 2013

Image for Episode 3 Not currently available on BBC iPlayer

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