Nothing can evoke an existential perspective-spiral quite like looking at an image of a galaxy. At first glance, these sublime structures may appear rather serene. But in fact the center of many galaxies is a turbulent environment ...
Astronomy
Aug 25, 2023
1
4172
A powerful satellite called XRISM (X-ray Imaging and Spectroscopy Mission) is set to provide astronomers with a revolutionary look at the X-ray sky.
Space Exploration
Aug 25, 2023
0
22
A University of Kansas survey of a swath of the cosmos using the James Webb Space Telescope has revealed active galactic nuclei (AGN)—supermassive black holes that are rapidly increasing in size—are rarer than many astronomers ...
Astronomy
Aug 23, 2023
57
307
Astronomers have made a thorough forensic study of a star that was torn apart when it ventured too close to a giant black hole and then had its insides tossed out into space.
Astronomy
Aug 22, 2023
0
5103
Nearly every galaxy in the universe contains a supermassive black hole. Even galaxies that are billions of light years away. This means supermassive black holes form early in the development of a galaxy. They are possibly ...
Astronomy
Aug 10, 2023
2
49
The universe is humming with gravitational radiation—a very low-frequency rumble that rhythmically stretches and compresses spacetime and the matter embedded in it.
Astronomy
Aug 9, 2023
0
904
At the heart of our galaxy, there is a monster black hole. Known as Sagittarius A*, it has a mass of 4.2 million suns, and it's only about 27,000 light-years from Earth. Sag A* is the closest supermassive black hole, and ...
Astronomy
Aug 3, 2023
0
150
An international team of astronomers has performed high-cadence optical monitoring of an active galaxy known as Markarian 1018. Results of the observational campaign, published July 26 on the pre-print server arXiv, shed ...
Astronomers from Shanghai Astronomical Observatory (SHAO) of the Chinese Academy of Sciences and their collaborators have found five Green Pea (GP) galaxies with double-peaked narrow lines among nearly 1,550 GP galaxies. ...
Astronomy
Jul 31, 2023
0
70
Black holes are the most mysterious objects in the universe, with features that sound like they come straight from a sci-fi movie.
Astronomy
Jul 26, 2023
3
3961
