It was filmed 400 kilometers above the Earth.

It's the latest experiments from the Remove Debris spacecraft, led by Sorry University.

It's a mission that's testing out the technologies that could clean up space junk.

It was absolutely a success on.

The goal of the experiment was to hit the target, and that's what we did.

It's important because there's so much debris up in space from spacecraft that are no longer operational to bits rocket body.

We really need to start clearing some of this debris out.

The way to make way for new spacecraft space is becoming increasingly cluttered.

It's estimated that there are now nearly 8000 tons of debris with 800,000 pieces the size of a marble or bigger, and each piece has the potential to do some serious damage.

In 2016 this crack in the window of the International space station was thought to have been caused when a tiny fleck of paints hit it.

Bigger objects could do even more harm.

Scientists are particularly worried about a European satellite the size of a double decker bus that stopped working in 2012.

It's now threatening other satellites in its path and needs to be removed from its orbit.

Last year, the remove debris spacecraft also tested a net, proving it could catch a passing satellite.

It's the first missions try and address this problem, and it's also used its on board cameras to track a tumbling target essential for hunting down any rogue space litter.

Its final test will be in the coming weeks.

It's set to burn up as it returns to Earth, preventing it from becoming a piece of space junk itself.

The hope is now that future missions could be scaled up so the celestial deep clean can begin.

It's a mission that's testing out the technologies that could clean up space junk.

This crack in the window of the international space station was thought to have been caused when a tiny flecks of paint hitting scientists are particularly worried about a European satellite the size of a double decker bus.

It's now threatening other satellites in its path and needs to be removed from its orbit.

The hope is now that future missions could be scaled up, so the celestial deep, clean begin.

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