When a black hole winks at you: Variability identified in supermassive black hole in Andromeda galaxy
A Michigan State University researcher saw X-rays coming from a black hole using the NASA Chandra X-Ray Observatory telescope.
https://phys.org/news/2025-04-....black-hole-variabili
Galaxies die earlier than expected
For a long time, scientists thought that only actively star-forming galaxies should be observed in the very early Universe. The James Webb space telescope now reveals that galaxies stopped forming stars earlier than expected. A recent discovery deepens the tension between theoretical models of cosmic evolution and actual observations. Among hundreds of spectra obtained with the Webb program RUBIES, the team has found a record-breaking galaxy that had already stopped forming stars during an epoch where galaxies are normally growing very rapidly.
https://www.sciencedaily.com/r....eleases/2025/04/2504
Insight from one of Milky Way's most extreme environments
In new images, scientists have gotten the closest look yet at Sagittarius C -- a 'stellar nursery' where clouds of gas and dust have collapsed to form thousands of new stars.
https://www.sciencedaily.com/r....eleases/2025/04/2504
Galaxies die earlier than expected: Webb sees signs of halted star formation 700 million years after Big Bang
An international team led by UNIGE shows that red and dead galaxies can be found only 700 million years after the Big Bang, indicating that galaxies stop forming stars earlier than predicted by models.
https://phys.org/news/2025-04-....galaxies-die-earlier
Sagittarius C: Webb provides closest look yet at one of Milky Way's most extreme environments
Sagittarius C is one of the most extreme environments in the Milky Way galaxy. This cloudy region of space sits about 200 light-years from the supermassive black hole at the center of our galaxy. Here, a massive and dense cloud of interstellar gas and dust has collapsed on itself over millions of years to form thousands of new stars.
https://phys.org/news/2025-04-....sagittarius-webb-clo
