Astronomers have played a game of guess-the-numbers with cosmological implications. Working from a mock catalog of galaxies prepared by a Japanese team, two American teams correctly guessed the cosmological parameters used ...
Astronomy
Mar 19, 2021
0
2594
A description of gravity compatible with the principles of quantum mechanics has long been a widely pursued goal in physics. Existing theories of this 'quantum gravity' often involve mathematical corrections to Heisenberg's ...
Quantum Physics
Feb 10, 2021
4
278
For the first time, hard-to-find lithium has been identified and measured in the atmosphere of burned out stars called white dwarfs, according to a study led by the University of North Carolina at Chapel Hill published online ...
Astronomy
Dec 17, 2020
0
524
Much mystery surrounds dark energy and the cosmological constant, the proxies used to explain the accelerating expansion of the Universe. New research suggests that an early model of dark energy presents a competing theory ...
Astronomy
Oct 29, 2020
16
3549
Dark energy is one of the greatest mysteries in science today. We know very little about it, other than it is invisible, it fills the whole universe, and it pushes galaxies away from each other. This is making our cosmos ...
Astronomy
Jul 23, 2020
60
186
The anti-de Sitter/conformal field theory (AdS/CFT) correspondence, also referred to as gauge/gravity duality, hypothesizes the existence of a relationship between two types of physics theories, namely gravity theories in ...
The expansion of the Universe has occupied the minds of astronomers and astrophysicists for decades. Among the cosmological models that have been suggested over the years, Lambda cold dark matter (LCDM) models are the simplest ...
General Physics
Mar 26, 2020
0
286
A physicist from RUDN University has proposed a new theoretical model for the interaction of spinor and gravitational fields. He considered the evolution of the universe within one of the variants of the widespread Bianchi ...
General Physics
Dec 16, 2019
6
1025
One of the biggest mysteries in science began with a dying star.
Astronomy
Nov 25, 2019
1
39
Physicists use two types of measurements to calculate the expansion rate of the universe, but their results do not coincide, which may make it necessary to update the cosmological model. "It's like trying to thread a cosmic ...
Astronomy
Nov 18, 2019
44
755
