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
114
One of the unsolved mysteries in modern science is why the expansion of the universe appears to be accelerating. Some scientists argue it is due to a theoretical dark energy that counteracts the pull of gravity, while others ...
Astronomy
Jun 6, 2018
13
455
"Cosmologists are often wrong but never in doubt," Russian physicist Lev Landau once said. In the early days, astronomers began by observing and modelling stars in different stages of evolution and comparing their findings ...
Astronomy
Feb 28, 2018
7
98
When scientists recorded a rippling in space-time, followed within two seconds by an associated burst of light observed by dozens of telescopes around the globe, they had witnessed, for the first time, the explosive collision ...
General Physics
Dec 18, 2017
10
760
The unveiling this summer of the most accurate cosmic picture ever taken of the distribution of dark matter has left astrophysicists feeling both delighted and frustrated.
Astronomy
Oct 31, 2017
3
26
The accelerating expansion of the Universe may not be real, but could just be an apparent effect, according to new research published in the journal Monthly Notices of the Royal Astronomical Society. The new study—by a ...
Astronomy
Sep 13, 2017
308
1881
Astrophysicists have a fairly accurate understanding of how the universe ages: That's the conclusion of new results from the Dark Energy Survey (DES), a large international science collaboration, including researchers from ...
General Physics
Aug 3, 2017
31
422
From the earliest human civilizations, people have looked to the heavens and pondered the origins of the stars and constellations above. Once, those stories involved gods and magical beings. Now, there's science, and a large ...
General Physics
May 11, 2017
19
81
Astronomy experiments could soon test an idea developed by Albert Einstein almost exactly a century ago, scientists say.
General Physics
Feb 10, 2017
29
1011
(Phys.org)—Physicists have proposed that violations of energy conservation in the early universe, as predicted by certain modified theories of quantum mechanics and quantum gravity, may explain the cosmological constant ...
