Using the Hubble Space Telescope (HST) and Jansky Very Large Array (VLA), astronomers have investigated an ultra-diffuse galaxy known as UGC 9050-Dw1. Results of the study, published June 9 on the pre-print server arXiv, ...
How do you weigh a galaxy? It's an astronomical challenge, particularly if it's the galaxy you call home. It turns out there are several ways to get a handle on the mass of the Milky Way, and a recent study posted on the ...
Astronomy
Jun 2, 2023
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The densely packed globular cluster NGC 6325 glistens in this image from the NASA/ESA Hubble Space Telescope. This concentrated group of stars lies around 26,000 light-years from Earth in the constellation Ophiuchus.
Astronomy
May 22, 2023
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The James Webb Space Telescope has helped astronomers detect the first chemical signs of supermassive stars, "celestial monsters" blazing with the brightness of millions of Suns in the early universe.
Astronomy
May 17, 2023
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Globular clusters are the most massive and oldest star clusters in the universe. They can contain up to 1 million stars. The chemical composition of these stars, born at the same time, shows anomalies that are not found in ...
Astronomy
May 11, 2023
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Using the James Webb Space Telescope (JWST) and the Hubble Space Telescope (HST), astronomers from the University of Padua, Italy, and elsewhere have observed a metal-poor globular cluster known as Messier 92. The observations ...
This image from the NASA/ESA Hubble Space Telescope shows the globular star cluster NGC 2419. Globular clusters are both beautiful and fascinating. They are spherical groups of stars that orbit the center of a galaxy, and ...
Astronomy
Apr 7, 2023
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The Milky Way increases its mass by merging with low-mass dwarf galaxies. Some of these dwarf galaxies will experience tidal forces during orbiting around the Milky Way, and their member stars will be lost.
Astronomy
Mar 21, 2023
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On June 20, 2022, the James Webb Space Telescope spent just over one hour staring at Messier 92 (M92), a globular cluster 27,000 light-years away in the Milky Way halo. The observation—among the very first science observations ...
Astronomy
Feb 22, 2023
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A galaxy has been discovered that mirrors the very early version of our home galaxy, the Milky Way. The galaxy, dubbed the "Sparkler," is embedded in a system of globular clusters and satellite galaxies, and appears to be ...
Astronomy
Feb 6, 2023
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