Watch ESA explain how it plans to find gravitational waves
In just under a week the European Space Agency (ESA) will launch its LISA Pathfinder spacecraft on a Vega rocket. Buried within the vessel are two cubes made of gold-platinium which, scientists hope, can lay the groundwork for measuring gravitational waves in space. The theories and testing procedures can be tricky to wrap your head around, but thankfully the ESA has made some explainer videos (below) to help you out.
Source: ESA (YouTube)
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