NASA Chandra X-ray telescope data from galaxy cluster Abell 2146 showed a "shockwave that stretches for some 1.6 million ...

Astronomers discover more than 100 hidden black holes in a star cluster, revealing surprising movements in ancient galactic ...

Scientists using the XRISM satellite have uncovered a major clue to one of astronomy’s longstanding mysteries: why galaxy ...

Astronomers have explained how a galaxy cluster maintains its heat, despite emitting X-rays that cool the hot gas at its center. The group discovered the existence of a fast-moving, high-temperature ...

In 1987, an enormous blue arc, thought to be hundreds of trillions of miles long, was first considered one of the largest ...

Recently, an international team of astronomers from China's top Tsinghua University, along with collaborators from Italy, ...

Chinese astronomers and their international peers have refreshed the limits for Galactic observation using China's ...

The JWST has done it again. The powerful space telescope has already revealed the presence of bright galaxies only several ...

Using the Magellan Clay Telescope, astronomers have performed a spectroscopic study of blue straggler stars in the globular ...

Galaxy cluster Abell 1489 is seen here in an image from the International Gemini Observatory. Galaxy cluster Abell 1489, as imaged by the International Gemini Observatory, contains more than 200 ...

Now gather a few hundred billion stars and star clusters together, and you’ve got an immense structure known as a galaxy. The galaxy in which our star — the sun — resides is the Milky Way, so named ...

Caldwell 71: This Hubble image of a loosely bound collections of stars reveals a portion of the open cluster Caldwell 71.