The moshing galaxies of Arp 105 dazzle in the Space Image of the Day Monday (March 10), which comes courtesy of Hubble.

The formation of elliptical galaxies has long been difficult to explain with cosmological models describing the evolution of the universe from the Big Bang to now. One of the challenges is that ...

Elliptical galaxies tend to reside in the densest environments while ... to construct environmental density maps and quantify how galaxy environment impacts star formation, AGN activity, and ...

An unusual elliptical galaxy with a history of absorbing smaller galaxies appears to be approaching its next target. An unusual elliptical galaxy with a history of absorbing smaller galaxies ...

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She noted, however, that the other FRB originating in a globular cluster was associated with a live galaxy, not an old elliptical in which star formation ceased billions of years ago.

DF2 (NGC 1052-DF2: A mysterious ultra-diffuse galaxy with little to no dark matter. About 65 million light-years away in the Cetus constellation. ESO 383-76: A supergiant elliptical galaxy.