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The spacecraft in question is called LISA Pathfinder, and in common with jewellery, it will contain a significant quantity of precious metal when it blasts off from ESA’s spaceport in Equatorial Guinea in September. It’s not a mission in and of itself; as the name implies, it’s a trailblazer, designed to test the equipment for a larger mission, LISA, which hopes to detect gravity waves: the deformation in the fabric of space-time which Einstein predicted would occur when massive objects like black holes collide.
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