Black holes come in a range of sizes. Stellar mass black holes form from the collapse of massive stars, typically weighing ...

Astronomers from Swinburne University in Australia and elsewhere have employed the Keck II telescope to investigate the ...

This paper reports the discovery of a high-velocity star J07 ejected from globular cluster M15 approximately 21 million years ...

In dwarf galaxies, they are believed to form from the merger of smaller star clusters, called globular clusters, after they migrate to the galaxy center. However, no such merger of globular ...

"We were surprised by the streams of light that were visible near the center of the galaxies, as nothing similar has been observed in the past." ...

This week’s small-telescope target is globular cluster NGC 2808 in the southern constellation Carina the Keel. It shines at magnitude 6.2 and has a diameter of 13.8′. That means it covers 20 ...

Most open clusters reside in the arms of spiral galaxies, and their stars are usually relatively young. NGC 2031: In the top left corner of this starry sight, the globular cluster NGC 2031 shines ...