Unlike our Milky Way, some galaxies have an active black hole in their center driving powerful outflows of gas. But we know very little about their impact and origin. ESA's future X-ray mission Athena will change this. In ...
Astronomy
Mar 28, 2022
1
411
After the Big Bang, the universe, glowing brightly, was opaque and so hot that atoms could not form. Eventually cooling down to about minus 454 degrees Fahrenheit (-270 degrees Celsius), much of the energy from the Big Bang ...
Astronomy
Jan 12, 2022
0
317
This spectacular image from the NASA/ESA Hubble Space Telescope captures the spiral galaxy NGC 105, which lies roughly 215 million light-years away in the constellation Pisces. While it looks like NGC 105 is plunging edge-on ...
Astronomy
Jan 7, 2022
0
188
Recently, the eROSITA (extended Roentgen Survey with an Imaging Telescope Array) X-ray telescope, an instrument developed by a team of scientists at Max-Planck-Institut für Extraterrestrische Physik (MPE), has gained attention ...
Astronomy
May 25, 2021
0
13
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
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3549
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
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1025
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
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755
Scanning the sky for X-ray sources, ESA's XMM-Newton X-ray observatory has been busy with the XXL Survey, its largest observational programme to date. The second batch of data from the survey has just been released, including ...
Astronomy
Oct 4, 2018
1
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