Cassini's mission coming to an end
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Cassini's mission coming to an end

5 April 2017 Last updated at 16:57 BST

A spacecraft that's been orbiting around the planet Saturn, for the past 13 years, is about to start its final mission.

Cassini began its incredible mission to Saturn back in 1997 but now it's running out of fuel.

So what exactly will happen to it next?

Watch Jenny's report.