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Inspire kids to become scientists by saying that…..…………………………………………

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Though a black hole’s immense gravity pulls in surrounding material, some particles can  get catapulted away. These high-energy particles  heat gigantic bubbles of gas and create shock waves that compress cool gas sparking the births of stars  across multiple galaxies.

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Polchinski rejected the dualistic complementarity by saying that in-falling observers would get burnt up by a literal firewall at the event horizon.

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The firewall paradox is a conflict between three fundamental postulates- equivalence principle, unitarity and locality. To resolve the paradox, one of them must be abandoned.

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Since there’s no difference between acceleration due to gravity and the acceleration of a rocket, we shouldn’t feel anything amiss when we cross a black hole horizon. This is the equivalence principle in Einstein’s general theory of relativity.

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Unitarity demands that information cannot be destroyed.

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Locality means that events happening at a particular point in space can only influence nearby points.

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Locality implies that the laws of physics  hold far away from a black hole, even if they break down at  the singularity or at the event horizon.
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One solution to resolve firewall paradox is to have the equivalence principle break down at the event horizon, thereby giving rise to a firewall.

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Samir Mathur’s  “fuzzball conjecture” resolves the paradox by declaring that there is no event horizon (hence no information loss) but a ball of strings emitting heat in the form of Hawking radiation.

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Hawking himself believed that information temporarily confined behind event horizon, eventually escapes in an unusable form.

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According to Leonard Susskind and Juan Maldacena, quantum entanglements create invisible microscopic wormholes connecting the particles still inside the hole to particles that escaped long ago. Both Hawking radiation and information loss are in line with such entangled/wormholed  links.

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Black holes are so powerful wells of gravity that absolutely nothing, including light, can escape their pull.
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We still don’t know what happens to an object once it is pulled into a black hole.
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Perhaps a black hole’s intense gravity crushes a falling object into nothingness.
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Perhaps a black hole spits a falling object out in some remote part of the universe. Such black holes might act like wormholes between two points in time and space making ‘intergalactic space-travel’ or ‘time-travel’ possible.
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Juan Maldacena, Alexey Milekhin and Fedor Popov have constructed a traversable wormhole solution in four dimensions where a theoretical magnetic charge keep two rotating black holes apart until the electromagnetic radiation causes them to lose energy to merge with each other.Such a wormhole with no exotic matter equates to two quantum-entangled black holes.
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Maldacena’s wormhole balances classical and quantum effects.
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Maldacena’s wormhole has a non-trivial spacetime topology forbidden in the classical theory.

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Our universe is full of so many secrets that we might never think and imagine it completely.

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About 7.5 million black holes are travelling at about 70 kilometers per second after being born, ejected and kicked by  supernova explosions in our Milky Way  galaxy.

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A blackhole’s velocity tells us if it was  born with a supernova explosion, or with a burnt out collapsed star.

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When a massive star collapses upon itself to explode into a supernova, a black hole might be formed.

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