The surprising behavior of black holes in an expanding universe
Physicist Nikodem Popławski's study reveals black hole behavior in an expanding universe. Einstein's equations suggest a constant expansion rate at black hole event horizons, challenging previous assumptions and shedding light on the Hubble tension. Popławski's work hints at a link between black holes, wormholes, and dark energy.
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In a recent study, physicist Nikodem Popławski explored the behavior of black holes in an expanding universe. He found that according to Einstein's equations, the rate of the universe's expansion at the event horizon of every black hole must be constant, indicating that dark energy is the only energy present at the event horizon. This discovery challenges previous assumptions about the pressure of matter and curvature of spacetime at black hole horizons. Popławski's work also sheds light on the Hubble tension, a discrepancy in measured values of the Hubble parameter. He suggests that this discrepancy is a natural outcome of analyzing black holes in an expanding universe. Furthermore, Popławski's equations imply that the cosmological constant, related to dark energy, must be positive for the universe to exhibit its current acceleration. His findings hint at a connection between black holes and wormholes, suggesting that every black hole could potentially be a gateway to another universe.
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