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Do We Need a New Theory of Gravity?
...when we have to open eyes for something new. But we know something is not quite right in Einstein’s theory of general relativity. When it comes to black holes, for...
Mathematicians Prove Hawking Wrong About the Most Extreme Black Holes
...holes can provide further insights into near-extremal black holes, which are thought to be plentiful in the universe. “Einstein didn’t think that black holes could be real [because] they’re just...
Diminishing Dark Energy May Evade the ‘Swampland’ of Impossible Universes
...experiments about black holes and quantum gravity — and try to identify general principles that consistent universes all obey. These possible universes comprise “the landscape.” Hypothetical universes with properties that...
What Can Tiling Patterns Teach Us?
...had someone do one of those lightbox diffraction experiments where you poke holes in the paper. And so he had them go on a Penrose tiling and poke holes in...
Mathematicians Attempt to Glimpse Past the Big Bang
...Observatory in Greenwich. Something similar happens at the boundary of mathematical models of black holes. The equations that describe spherical nonrotating black holes, worked out by the physicist Karl Schwarzschild...
Dogged Dark Matter Hunters Find New Hiding Places to Check
...play. Some theoretical physicists are reconsidering a long-sidelined idea that this invisible matter might take the form of primordial black holes created during the Big Bang. One more possibility is...
AI Starts to Sift Through String Theory’s Near-Endless Possibilities
...space-times surrounding exotic black holes. Perhaps, he speculated, computers could also solve for the metrics of Calabi-Yau space-times. “Everyone said, ‘Oh, no, you couldn’t possibly do that,’” Wiseman said. “So...
Hopes of Big Bang Discoveries Ride on a Future Spacecraft
...a few billion. This will let LISA listen in on astrophysical events that ground-based observatories can’t “hear,” such as the mergers of supermassive black holes (as opposed to star-sized black...
Can Information Escape a Black Hole?
...century, when black holes were originally discovered. And I would love it if you could take us through the general relativistic understanding of black holes, without the complications of quantum...