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3.5 kilometres underwater, scientists found a staggeringly energetic particle from outer space

In the search for elusive particles called neutrinos, researchers are stringing thousands of detectors in the depths of the Mediterranean.

Luke Barnes

At the centre of the Milky Way is a supermassive black hole called Sagittarius A*. It is roughly 27,000 light years from Earth and 23.5 million...

The largest known black hole jets, 23 million light years across, have been discovered in the distant universe. This pair of particle beams...