大象传媒

Hours before the European Space Agency's Rosetta mission meets up with its target, the comet Churyumov-Gerasimenko, 'The Sky at Night' presenter Dr Chris Lintott talks about the decade long mission.

The unique, solar-powered probe is set to loop around the Earth and Mars before making the long, dark journey out to the orbit of Jupiter and back.

Probes have chased comets before, but this will be the first time a probe has chased and then orbited a comet. It will also be the first time Earth will see close-up images of a comet in high resolution.

This clip is originally from 5 live with Chris Warburton on Tuesday 5th August 2014.