A galaxy cluster is a massive are where hundreds, or even thousands, of galaxies are present. So, having two separate galaxy ...

Discover the latest images of galaxies that highlight stunning stars, dust clouds, and magnificent cosmic formations across ...

Galaxy cluster Abell 1489, as imaged by the International Gemini Observatory, contains more than 200 of the gravitationally-bound systems of stars, stellar remnants, interstellar gas and dust.

New JWST observations of the Phoenix Cluster of galaxies support a theory about star formation that other clusters challenge.

Galaxy cluster Abell 1489, as imaged by the International Gemini Observatory, contains more than 200 of the gravitationally-bound systems of stars, stellar remnants, interstellar gas and dust.

Ursa Major III, the faintest object in our galaxy, orbits the Milky Way at a distance of more than 30,000 light years. Until ...

Faint Bridge of Stars Reveals Rare Galactic Merger Astronomers have created one of the most detailed views ever captured of a galaxy cluster located 700 million light-years away, revealing a delicate ...

In the past decade, the European Space Agency's Gaia space telescope has revealed the nature, history, and behavior of ...

Dwarf galaxy nuclei contain hundreds of thousands to hundreds of millions of stars, making them the densest stellar clusters in the known universe — and this research seems to confirm that such ...

Galaxy clusters are often described by superlatives. After all, they are huge conglomerations of galaxies, hot gas, and dark matter and represent the largest structures in the Universe held ...

Astronomers have spotted two massive galaxies locked in a cosmic tug-of-war 700 million light-years from Earth — and for the first time in such a nearby galaxy, watched as a faint stream of stars is ...

"Galaxy clusters are also dominated by dark matter," Jacqueline McCleary, assistant professor of physics at Northeastern University, said in a statement.