An observer hiding inside a black hole can eavesdrop on quantum objects outside itvan van/Shutterstock Quantum eavesdropping is possible across a black hole’s event horizon, one of the most impermeable…
For as long as we have tried to figure out the nature of reality, we have grappled with the concept of empty space. Around 400 BC, when the ancient Greek…
In March 1974, Stephen Hawking published the paper that made his name. It contained the revelation that black holes – gravitational giants from which nothing, not even light, can escape…
Previously, physicists theorised that black holes are the fastest possible scramblers of informationMARK GARLICK/SCIENCE PHOTO LIBRARY/Alamy When two quantum objects interact, all the information they carry becomes scrambled. Now, physicists…
An artist’s impression of a black hole consuming gasJohn A. Paice In the distant universe, a supermassive black hole seems to be devouring an enormous cloud of gas, producing an…
Supermassive black holes that beam powerful jets of matter towards Earth, known as blazars, accelerate particles to extraordinarily high energies – and astronomers have finally figured out how Space 23…
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