According to the standard model of cosmology, the vast majority of galaxies are surrounded by a halo of dark matter particles. This halo is invisible, but its mass exerts a strong gravitational pull on galaxies in the vicinity. ...
Astronomy
Aug 5, 2022
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1299
An international team of researchers has observed part of the formation of a dwarf galaxy, helping to explain how they evolve from a dwarf state to maturity. In their paper published in the journal Nature, the group describes ...
A recent picture by the DESI Legacy Imaging Survey features a mysterious globular cluster Whiting 1 in the galactic halo. So, what is Whiting 1 and why do we care about it?
Astronomy
Jul 6, 2022
0
219
A new fossil galaxy, which was uncovered via a systematic visual search of legacy survey images using the Mayall 4-meter telescope, led by Dr. David Martinez Delgado, could teach scientists about how galaxies form and confirm ...
Astronomy
Jun 30, 2022
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91
Astronomers analyzing data from the VLA Sky Survey (VLASS) have discovered one of the youngest known neutron stars—the superdense remnant of a massive star that exploded as a supernova. Images from the National Science ...
Astronomy
Jun 16, 2022
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2750
A team led by researchers at the University of North Carolina at Chapel Hill has found a previously overlooked treasure trove of massive black holes in dwarf galaxies. The newly discovered black holes offer a glimpse into ...
Astronomy
May 24, 2022
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An international group of astronomers, led by a physicist at the University of St Andrews, has revived an alternative gravity theory.
Astronomy
May 20, 2022
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207
A team of astrophysicists affiliated with multiple institutions in the U.S., one in Germany and one in Canada, has developed a new theory to explain the existence of odd, dark matter–free dwarf galaxies. In their paper ...
This newly revised NASA Hubble Space Telescope image of the Hickson Compact Group 31 (HCG 31) of galaxies highlights streams of star-formation as four dwarf galaxies interact. The bright, distorted clump of young blue-white ...
Astronomy
May 17, 2022
0
181
A quadruple star system discovered in 2017 and recently observed at the University of Canterbury Mt. John Observatory could represent a new channel by which thermonuclear supernova explosions can occur in the universe, according ...
Astronomy
May 13, 2022
2
372
