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The Year in Physics
...April — a dark void, encircled by a luminous ring, humanity’s first-ever look at a black hole. The existence of black holes had not been in doubt, of course: Astronomers...
The Year in Physics
...unique. It singlehandedly upends notions about the young universe. Black holes were thought to have come along only after the formation of galaxies, once stars gravitationally collapsed into black holes...
A Deepening Crisis Forces Physicists to Rethink Structure of Nature’s Laws
...of colliding black holes is resolved by a “hidden” symmetry that links low- and high-frequency deformations of the shape of the black holes. Like other researchers, Dubovsky doesn’t seem to...
How Modern and Antique Technologies Reveal a Dynamic Cosmos
...region that features a binary system of mammoth yet compact objects. There, two supermassive black holes and their surrounding accretion disks are locked in a dance that will eventually merge...
A Cosmic-Ray Hunter Takes to the Sky
...that the bigger the better, so the supermassive black holes are usually a little bit ahead. It could be somewhere in the middle: intermediate-mass black holes. Or ultrahigh-energy cosmic rays...
Why Did The Universe Begin?
...made that black holes radiate, that quantum processes are responsible for this, and that this radiation could be captured by purely spatial geometries. And that was the inspiration to try...
Standard Model of Cosmology Survives a Telescope’s Surprising Finds
...universe; maybe the gas is denser; maybe somehow it is flowing in faster. I think we’re still learning about those processes.” Somerville also studies the possibility that black holes interfered...
Gravitational Waves Should Permanently Distort Space-Time
...loss of information in black holes, a very deep issue in the structure of space and time.” A Scar in Space-Time Why would a gravitational wave permanently change space-time’s structure?...
A Century Later, New Math Smooths Out General Relativity
...black holes. This could occur even in a space with small amounts of matter, if it’s concentrated strongly enough. In a recent paper, Conghan Dong, a graduate student at Stony...