The expansion of the universe at some stage of evolution is well described by the Friedmann model. It was derived from general relativity a hundred years ago, but it is still considered one of the most important and relevant ...
General Physics
Jan 22, 2024
2
219
Near the center of the Milky Way Galaxy sits an immense object that astronomers call Sagittarius A*. This "supermassive" black hole may have grown in tandem with our galaxy, and it's not alone. Scientists suspect that similar ...
Astronomy
Jun 20, 2023
4
1737
For the first time, astronomers have captured images that show a star consuming one of its planets. The star, named ZTF SLRN-2020, is located in the Milky Way galaxy, in the constellation Aquila. As the star swallowed its ...
Astronomy
May 13, 2023
1
85
Research led by the University of Southampton has revealed how supermassive black holes (SMBHs) are feeding off gas clouds which reach them by traveling hundreds of thousands of light years from one galaxy to another.
Astronomy
Jan 19, 2023
3
156
A trio of astrophysicists, two from Princeton, the other from New York University, has calculated estimations on how soon the universe could collapse if theories regarding dark energy as having quintessence are correct. In ...
RUDN astrophysicists have proposed a new method for approximate calculation of the parameters of spherically symmetric black holes in the Einstein-Maxwell theory. By comparing the shadow radii of the black holes obtained ...
Astronomy
Jan 29, 2020
31
110
Thanks to a natural phenomenon, it's not all about the plays and celebrity sightings in New York City. When the sun lines up with the Manhattan street grid before setting, the city gets bathed in radiance.
Space Exploration
May 29, 2018
0
16
It's like something out of an interplanetary chess game. Astrophysicists at the University of Toronto have found that a close encounter with Jupiter about four billion years ago may have resulted in another planet's ejection ...
Astronomy
Oct 29, 2015
6
3784
More than 100 million years has been wiped off the age of the first stars but there is still the question of what happened in the first billion years of the universe.
Astronomy
Feb 18, 2015
0
43
Researchers from the Université libre de Bruxelles and the Université de Montpellier have succeeded, for the first time, in measuring the temperature at the heart of certain stars, as well as dating them. Their study is ...
Astronomy
Jan 8, 2015
4
33
