The universe is undergoing an accelerated expansion, but the rate of that expansion has been a very controversial topic over ...

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 ...

Galaxies, including the Milky Way, grow from thick, turbulent disks into layered structures. JWST’s images show this process ...

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 ...

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.

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 ...

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.

“Other Local Group dwarf galaxies are thought to have extreme orbits, including Leo I, Andromeda XIV and Andromeda XI, but Andromeda XII really stands out as a contender for a new entrant into ...

The Vera C. Rubin Observatory's first image release includes a 'staggering' view of 10 million galaxies in and around the ...

The Triangulum Galaxy, the third-largest member of the Local Group of galaxies, is shining with star formation in a new image from the Hubble Space Telescope.