Massive stars refer to stars that are more than ten times the mass of the sun. They can release powerful ultraviolet radiation, ionize the gas in the interstellar medium, and eventually produce the elements necessary for ...
Astronomy
Jul 13, 2023
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174
The discovery of a rare type of white dwarf star system provides new understanding into stellar evolution.
Astronomy
Jun 15, 2023
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94
A new study has revealed the true shape of the diffuse cloud of stars surrounding the disk of our galaxy. For decades, astronomers have thought that this cloud of stars—called the stellar halo—was largely spherical, like ...
Astronomy
Nov 18, 2022
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817
Scientists studying V Hydrae (V Hya) have witnessed the star's mysterious death throes in unprecedented detail. Using the Atacama Large Millimeter/submillimeter Array (ALMA) and data from the Hubble Space Telescope (HST), ...
Astronomy
Mar 28, 2022
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567
A team led by astronomers at the University of California, Riverside, has found that some dwarf galaxies may today appear to be dark-matter free even though they formed as galaxies dominated by dark matter in the past.
Astronomy
Feb 9, 2021
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1103
Astronomers studying galaxy evolution have long struggled to understand what causes star formation to shut down in massive galaxies. Although many theories have been proposed to explain this process, known as "quenching," ...
Astronomy
Jul 16, 2020
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328
Today, at the 233rd AAS meeting in Seattle, astronomers from the Sloan Digital Sky Survey (SDSS) announce that they have developed a new tool to find otherwise-hidden galaxy mergers in data from the Mapping Nearby Galaxies ...
Astronomy
Jan 9, 2019
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87
New work from Carnegie's Jonathan Gagné and the American Museum of Natural History's Jacqueline Faherty identified nearly a thousand potential members and 31 confirmed members of stellar associations—stars of similar ages ...
Astronomy
Aug 28, 2018
7
126
This entrancing image shows a few of the tenuous threads that comprise Sh2-308, a faint and wispy shell of gas located 5,200 light-years away in the constellation of Canis Major (The Great Dog).
Astronomy
Apr 21, 2017
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236
In a unique study, an international team of researchers including members from the Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU) simulated the violent collisions between supernovae and its surrounding ...
Astronomy
Nov 28, 2016
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107
