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Galactic Astronomy

15Sep

Hubble Records Glints of a Shining Globular Cluster in the Sagittarius

The photo showcases NGC 6717, which exists more than 20,000 light-years from Earth in the Sagittarius constellation.Credit: ESA HUBBLENASA's Hubble telescope has given us some impressive images for many years. In 2019, when it turned 29, it sent us a treasure of a shot of the crab nebula.Now, it is back with a fantastic...

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15Sep

Red vs. Blue: Astronomers Trace the Beginnings of Unusual Loner Dwarf Galaxies

The fall of a blue ultra-diffuse galaxy into a galaxy system and its subsequent ejection as a red ultra-diffuse galaxy. Credit: MITThe results give a blueprint for finding such systems in deep space's quieter, emptier areas.By definition, dwarf galaxies are tiny and dim, with just a fraction of the stars located in the Milky...

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