The National Aeronautics and Space Administration (NASA) has shared stunning image of center ... Deep in the heart of our Milky Way galaxy lies a massive star cluster containing more than half ...

Many mysteries about galaxy clusters are still out there. A structure in the heart of the Perseus galaxy ... Using both to create a composite image not only produced this new image, but, more ...

Stars shine like diamonds in this week’s image from the Hubble Space Telescope, which shows globular cluster Terzan 9. Located in the constellation of Sagittarius, Terzan 9 is relatively close ...

The globular cluster NGC 6397, a conglomeration of stars about 7,800 light-years from Earth, likely harbors a clump of small black holes at its heart ... 6397's total mass. Images: Black holes ...