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Neutrinos Linked With Cosmic Source for the First Time
...tracing ultrahigh-energy neutrinos back to their astrophysical source. That source appears to be a supermassive black hole at the center of a distant galaxy. Every time a black hole gobbles...
Salamander’s Genome Guards Secrets of Limb Regrowth
...They wear their gills on the outside, a set of three feathery horns on each side of the head. Their four-fingered hands with black nails are delicate and vaguely human...
The Universe Is Not a Simulation, but We Can Now Simulate It
...York, coded some of the first black holes, putting them into GASOLINE in 2008. Skipping or simplifying tons of physics, she programmed an equation dictating how much gas the black...
Mathematicians Disprove Conjecture Made to Save Black Holes
...mathematicians Mihalis Dafermos and Jonathan Luk have proven that the strong cosmic censorship conjecture, which concerns the strange inner workings of black holes, is false. “I personally view this work...
What Astronomers Are Learning From Gaia’s New Milky Way Map
...massive black hole at the center of the Large Magellanic Cloud. Full-size galaxies almost always harbor huge central black holes, which are of mysterious provenance. Their presence in some mini...
Troubled Times for Alternatives to Einstein’s Theory of Gravity
...principle, which states that very dense strong-gravity objects such as neutron stars or black holes “fall” in the same way when placed in a gravitational field. (On Earth, the more...
Whisper From the First Stars Sets Off Loud Dark Matter Debate
...group looked at black holes as a possible explanation, since black holes are the brightest extragalactic radio sources in the sky. Yet black holes also produce other forms of radiation,...
Black Hole Echoes Would Reveal Break With Einstein’s Theory
...center. Yet the center of a black hole is, famously, a place where we can never look. It’s protected by the black hole’s horizon — the surface surrounding the black...
Why Stephen Hawking’s Black Hole Puzzle Keeps Puzzling
...that black holes are not truly black. Quantum uncertainty causes them to radiate a small amount of heat, dubbed “Hawking radiation.” They lose mass in the process and ultimately evaporate...