Our ideas about the universe are based on a century-old simplification known as the cosmological principle. It suggests that when averaged on large scales, the Cosmos is homogeneous and matter is distributed evenly throughout.
Astronomy
Jun 29, 2023
2
59
Primordial holes formed in the exotic conditions of the big bang may have become their own source of matter and radiation.
Astronomy
Apr 14, 2023
9
123
Observations of supermassive black holes at the centers of galaxies point to a likely source of dark energy—the 'missing' 70% of the universe.
Astronomy
Feb 15, 2023
86
5253
What is behind dark energy—and what connects it to the cosmological constant introduced by Albert Einstein? Two physicists from the University of Luxembourg point the way to answering these open questions of physics.
General Physics
Jan 24, 2023
32
1850
The European Space Agency (ESA) recently announced a new mission of its science program: a small telescope orbiting the Earth dubbed Arrakhis. But although its name is inspired by the sci-fi novel Dune, it will not be looking ...
Astronomy
Dec 12, 2022
1
43
RUDN University astrophysicists have gathered the most important discoveries of modern cosmology from 1917 to our time. The collected data became an introduction to Philosophical Transactions of the Royal Society A in two ...
Astronomy
Nov 21, 2022
0
82
Scientists from around the world have reconstructed the laws of gravity, to help get a more precise picture of the universe and its constitution.
Astronomy
Nov 4, 2022
74
448
The mid-eighteenth century marked the conclusion of a significant period of expansion for the Qing empire (1644-1911). The empire controlled nearly twice as much land as before, and updated maps were needed to record and ...
Other
Oct 12, 2022
0
11
Early in its history, shortly after the Big Bang, the universe was filled with equal amounts of matter and "antimatter"—particles that are matter counterparts but with opposite charge. But then, as space expanded, the universe ...
General Physics
Sep 8, 2022
282
893
By applying a machine-learning technique, a neural network method, to gigantic amounts of simulation data about the formation of cosmic structures in the universe, a team of researchers has developed a very fast and highly ...
Astronomy
Jul 21, 2022
0
104
