In the local group of galaxies that also includes the Andromeda Nebula and our Milky Way, there are about 100 billion stars. According to astronomers' calculations, there should be many more.

Our little Local Group, by contrast, contains roughly 50 confirmed and possibly 30 unconfirmed galaxies, most of them unimpressive dwarfs. Many, perhaps most, galaxies exist in such small groups ...

The Local Group is a collection ofabout 40 galaxies, of which the MilkyWay and Andromeda are the dominant members. The rest of the galaxies are mostly small satellitesknown as "dwarfgalaxies" that ...

Stargazers may catch a cosmic light show this Fourth of July weekend when the Milky Way appears in the night sky across the ...

This portrait from the NASA/ESA Hubble Space Telescope puts the nearby galaxy NGC 4449 in the spotlight. The galaxy is ...

Another of the local group galaxies in the collection is NGC 3109, seen below, which is also 4 million light-years away — but, this time, in the Hydra constellation.

Scientists previously predicted the pair of galaxies would merge in about five billion years. Now, research suggests that ...

One group, led by astronomer R. Brent Tully of the University of Hawai'i measured the motions of some 56,000 galaxies to understand these basins and their distribution in space.

Researchers discovered the first ultra-faint dwarf galaxies to be found around a spiral galaxy with the mass of the Milky Way that’s outside of the Local Group, the clustering of galaxies that ...