A thin ribbon of stars around the ultra-diffuse galaxy UGC 9050-Dw1 may be the first globular-cluster stellar stream identified beyond the Milky Way. Its shape allowed astronomers to reconstruct the ...

Radcliffe Wave origin identified in new preprint: Pulkovo Observatory astronomers Bobylev and Bajkova propose globular ...

Our home galaxy, the Milky Way, grew to its current size in part by consuming smaller galaxies. Now, new data from NASA's Hubble Space Telescope show definitive evidence of a dwarf galaxy merging with ...

In the image above, a faint trail of stars can be seen stretching across the galaxy. These structures, known as globular cluster stellar streams, are coherent stellar structures that retain a record ...

Astronomers have discovered a globular cluster stellar stream outside the Milky Way, giving scientists a new way to map invisible dark matter in distant galaxies.

The Hubble Space Telescope's evidence of an "intermediate-sized" black hole about 6000 light-years away in the closest globular star cluster to our home planet. Credit: NASA's Goddard Space Flight ...

In a first, astronomers say they’ve detected a long ribbon of stars outside the Milky Way. The globular cluster stellar ...

The NASA/ESA Hubble Space Telescope has identified thousands of more than 5 billion years old globular clusters in the Virgo cluster of galaxies. One of the results of these discoveries led ...

This week’s image from the Hubble Space Telescope shows a stunning field of stars called a globular cluster. Taken with Hubble’s Wide Field Camera 3 and Advanced Camera for Surveys instruments, the ...

A strange, newly measured clump of stars orbiting the nearby Andromeda galaxy has the lowest level of heavy chemical elements ever seen in one of these mysterious star clusters. Named RBC EXT8, this ...

The first globular cluster stellar stream found beyond the Milky Way could provide a new way to map dark matter in distant ...