New research from the SAGA Survey, comparing the Milky Way with 101 similar galaxies, unveils how our galaxy differs ...

The new composite image, which combines hundreds of photos from the Hubble Space Telescope, shows the Andromeda Galaxy with more than 200 million individually resolved stars.

The Milky Way's system of small, orbiting satellite galaxies is quite unusual, a new 12-year study of other galaxies in the ...

“It is necessary to understand which GCs belonged to satellite galaxies like Sgr dSph to understand how the Milky Way formed and evolved. Furthermore, since some of these GCs are comparable in ...

Also in the Local Group are a couple dozen dwarf galaxies. Several of these dwarf galaxies are satellite galaxies, orbiting around the large galaxies. The Milky Way has two prominent satellite ...

The Hubble Space Telescope has provided the most detailed survey of the Andromeda galaxy, revealing new clues about its ...

The Milky Way is so big that, over billions of years, its mass has captured numerous dwarf galaxies, which contain no more than a few billion stars, as satellites. But how many satellite galaxies ...

This NASA/ESA Hubble Space Telescope image features a dusty yet sparkling scene from one of the Milky Way's satellite ...

Analysis - You may not know it, but right now there's a huge cosmic rave party happening far, far above our heads. The chief ...

The haloes of galaxies show clear evidence for this, says the paper; faint streams and shells of stars, left by merging satellite galaxies, and star clusters scattered in their outskirts.

This detailed look will help astronomers piece together the Andromeda galaxy’s past history, including mergers with smaller satellite galaxies. In the decades following the launch of NASA's ...

The detailed look at the resolved stars will help astronomers piece together the galaxy's past history that includes mergers with smaller satellite galaxies. In the years following the launch of ...