Core Concept: Multimessenger astronomy probes deep-space events with an arsenal of lenses [Astronomy]

On September 22, 2017, four billion years into its journey through space, a ghostly particle hit the ice under Earth's South Pole. This rare event was picked up by IceCube, the largest neutrino detector on the planet, triggering a worldwide alert. In response, telescopes on the ground and in orbit...

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