Extremely distant galaxies are usually too faint to be seen, even by the largest telescopes. But nature has a solution—gravitational lensing, predicted by Albert Einstein and observed many times by astronomers. Now, an ...
Astronomy
Feb 2, 2018
8
428
Using the Australian Square Kilometer Array Pathfinder (ASKAP), an international team of astronomers has detected a radio relic in a merging galaxy cluster known as SPT-CL 2023-5535. The discovery is reported in a research ...
When spectacular cosmic events such as galaxy collisions occur, it sets off a reaction to form new stars, and possibly new planets that otherwise would not have formed. The gravitational pull that forces the collisions between ...
Astronomy
Feb 9, 2024
32
3718
At the center of a galaxy cluster, 1 billion light years from Earth, a voracious, supermassive black hole is preparing for a chilly feast.
Astronomy
Jun 8, 2016
58
1303
An innovative interpretation of X-ray data from a cluster of galaxies could help scientists fulfill a quest they have been on for decades: determining the nature of dark matter.
Astronomy
Dec 19, 2017
19
879
Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), ...
Astronomy
Mar 22, 2017
135
1359
Galaxies and dark matter go hand in hand; you typically don't find one without the other. So when researchers uncovered a galaxy, known as NGC1052-DF2, that is almost completely devoid of the stuff, they were shocked.
Astronomy
Mar 28, 2018
73
1157
Thanks to data from a magnified, multiply imaged supernova, a team led by University of Minnesota Twin Cities researchers has successfully used a first-of-its-kind technique to measure the expansion rate of the universe. ...
Astronomy
May 11, 2023
0
1424
In a hypothetical scenario, small, primordial black holes could be captured by newly forming stars. An international team, led by researchers at the Max Planck Institute for Astrophysics, has now modeled the evolution of ...
Astronomy
Dec 22, 2023
45
351
Searching for life in the vast universe is an overwhelming task, but scientists can cross one place off their list.
Astronomy
Aug 9, 2018
8
548
