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British astronaut Tim Peake says running the London marathon in the "weightlessness" of space will be "very different".

Peake will become the first Briton to live on the International Space Station (ISS), following lift off on December 15.

Whilst aboard the ISS, Peake plans to train for the marathon on 24th April by "running every day for two hours".

The ISS will be 250 miles above the earth as the race takes place, but he will experience the "same sort of blisters and same sort of muscle cramps" as back on the ground.

Peake will be the second astronaut to run a marathon in space after NASA's Sunita Williams ran the Boston marathon in 2007.

This clip is originally from 5 live Drive on Friday 4 December 2015.