Excessive-Vitality Cosmic Ray Sources Get Mapped Out for the First Time

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Starburst galaxies, lively galactic nuclei, and tidal disruption occasions (from left) have emerged as high candidates for the dominant supply of ultrahigh-energy cosmic rays.{Photograph}: Daniel Chang/Quanta JournalThey twist and activate their method to Earth, which has made it almost unimaginable to determine the colossal monsters that create them. Within the Nineteen Thirties, the French physicist …
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Don’t Inform Einstein, however Black Holes Would possibly Have ‘Hair’

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{Photograph}: Getty PhotographsThe final principle of relativity states that black holes have solely three observable properties; extra ones, or “hair,” don’t exist. Or do they? An identical twins have nothing on black holes. Twins might develop from the identical genetic blueprints, however they’ll differ in a thousand methods—from temperament to coiffure. Black holes, based on …
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How Universes Would possibly Bubble Up and Collide

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{Photograph}: E.R. DEGGINGER/Science SupplyTo know how universes may inflate and stumble upon one another within the hypothetical multiverse, physicists are learning digital and bodily analogs of the method. What lies past all we will see? The query could appear unanswerable. However, some cosmologists have a response: Our universe is a swelling bubble. Exterior it, extra …
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The Seek for Darkish Matter Is Dramatically Increasing

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Physicists are checking whether or not darkish matter tickles several types of detectors, nudges starlight, warms planetary cores, and even lodges in rocks. Ever since astronomers reached a consensus within the Eighties that many of the mass within the universe is invisible—that “darkish matter” should glue galaxies collectively and gravitationally sculpt the cosmos as an …
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