Gravitational waves could give us insights into fast radio bursts Fast radio bursts (FRBs) are mysterious pulses of energy that can last from a fraction of a millisecond to about three seconds. Most of them come from outside the galaxy, although one has been detected coming from a source inside the Milky Way. Some of them also repeat, which only adds to their mystery.
https://phys.org/news/2025-01-....gravitational-insigh

Newfound galaxy class may indicate early black hole growth In December 2022, less than six months after commencing science operations, NASA's James Webb Space Telescope revealed something never seen before: numerous red objects that appear small in the sky, which scientists soon called "little red dots" (LRDs). Though these dots are quite abundant, researchers are perplexed by their nature, the reason for their unique colors, and what they convey about the early universe.
https://phys.org/news/2025-01-....newfound-galaxy-clas

X-ray flashes from a nearby supermassive black hole accelerate mysteriously Astronomers observed flashes of X-rays coming from a supermassive black hole at a steadily increasing clip. The source could be the core of a dead star that's teetering at the black hole's edge.
https://www.sciencedaily.com/r....eleases/2025/01/2501

New study unveils breakthrough in understanding cosmic particle accelerators Scientists have come a step closer to understanding how collisionless shock waves -- found throughout the universe -- are able to accelerate particles to extreme speeds.
https://www.sciencedaily.com/r....eleases/2025/01/2501

NASA's Hubble tracks down a 'blue lurker' among stars The name 'blue lurker' might sound like a villainous character from a superhero movie. But it is a rare class of star that NASA's Hubble Space Telescope explored by looking deeply into the open star cluster M67, roughly 2,800 light-years away.
https://www.sciencedaily.com/r....eleases/2025/01/2501