At present, the formation of galaxies is difficult to understand without the presence of a ubiquitous, but mysterious component, termed dark matter. Astronomers have measure how much dark matter there is around galaxies, ...
Astronomy
Oct 13, 2020
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The outskirts of the Milky Way are home to the galaxy's oldest stars. But astronomers have spotted something unexpected in this celestial retirement community: a flock of young stars.
Astronomy
Jan 8, 2020
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5105
A top goal in cosmology is to precisely measure the total amount of matter in the universe, a daunting exercise for even the most mathematically proficient. A team led by scientists at the University of California, Riverside, ...
Astronomy
Sep 28, 2020
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5544
In clusters of galaxies there is a fraction of stars which wander off into intergalactic space because they are pulled out by huge tidal forces generated between the galaxies in the cluster. The light emitted by these stars ...
Astronomy
Dec 2, 2022
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1838
Astronomers at MIT and elsewhere have used a massive cluster of galaxies as an X-ray magnifying glass to peer back in time, to nearly 9.4 billion years ago. In the process, they spotted a tiny dwarf galaxy in its very first, ...
Astronomy
Oct 14, 2019
3
581
By analyzing the data from the eROSITA Final Equatorial Depth Survey (eFEDS), an international team of astronomers has detected a new supercluster. The newly found structure consists of eight galaxy clusters. The discovery ...
An extraordinary ribbon of hot gas trailing behind a galaxy like a tail has been discovered using data from NASA's Chandra X-ray Observatory. This ribbon, or X-ray tail, is likely due to gas stripped from the galaxy as it ...
Astronomy
Dec 22, 2015
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114
Observations by the NASA/ESA Hubble Space Telescope and the European Southern Observatory's Very Large Telescope (VLT) in Chile have found that something may be missing from the theories of how dark matter behaves. This missing ...
Astronomy
Sep 10, 2020
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Using the first science image released by the James Webb Space Telescope (JWST) this month, an international team of scientists with significant contribution from the Technical University of Munich (TUM) has built an improved ...
Astronomy
Jul 28, 2022
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1296
Once a black hole forms, its intense gravitational field produces a surface beyond which even light cannot escape, and it appears black to outsiders. All the details of the complex mix of matter and energy in its past are ...
Astronomy
Oct 15, 2020
166
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