Black Holes Are Born When the Universe Bounces ⚡ экспресс
Original: "Cosmological Bounce Relics: Black Holes, Gravitational Waves, and Dark Matter"
A new mechanism shows that black holes and dark matter can emerge in a bouncing universe without a Big Bang.
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The cosmos can compress and bounce, like a ball. Inside such a cycle, black holes and dark matter don't disappear; they survive as dense clumps. If a clump is larger than 90 meters, it will break through the bounce and become the seed of a future galaxy.
🎯 For a clump of matter to survive the bounce, its diameter must be at least 90 meters—the length of a football field.
🎬 A cyclic cosmos, contracting and being reborn, is described in Poul Anderson's novel 'Tau Zero': the characters witness the death and birth of a new world.