Scientists have discovered two supermassive black holes, locked together in a final, terrible spiral. They’re about to collide. And when they do, it will shake the fabric of spacetime itself. Combing through decades of radio telescope observation data, a team of Caltech astronomers discovered a radio pattern from the deep …
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(Credit: Robin Dienel/Carnegie Institution for Science)We are constantly learning new things about the universe, but the more we know, the clearer it becomes that we’re missing pieces of the puzzle. The possible existence of dark matter is one of the more vexing missing pieces, but a team from …
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Gravitational-wave detectors can be used to measure gravitational-field hair of extreme black holes, according to a paper published in the journal Physical Review D. Extreme Kerr black holes have gravitational hair that can be measured at finite distances and violates the uniqueness theorems. Image credit: Sci-News.com / Zdeněk Bardon / …
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Spinning black holes store rotational energy that can be extracted; when a black hole is immersed in an externally supplied magnetic field, reconnection of magnetic field lines within the ergosphere can generate negative energy particles that fall into the black hole event horizon while the other accelerated particles escape stealing …
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In a new paper in the journal Physical Review Letters, an international team of theoretical physicists described a scenario for the formation of primordial black holes from vacuum bubbles in the early Universe and discussed its intriguing realization that can naturally account for all of the dark matter. ‘Baby universes’ …
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