Views of a massive galaxy cluster Abell 2256 have been captured by NASA’s Chandra X-ray Observatory, ESA’s XMM-Newton and ...

Astronomers may have uncovered the origins of the mysterious “little red dots,” some of the strangest galaxies seen in the ...

In 2009, NASA's Chandra X-ray Observatory released a captivating image: a pulsar and its surrounding nebula that is shaped like a hand. Since then, astronomers have used Chandra and other telescopes ...

By analyzing the data from NASA's Chandra spacecraft, astronomers have conducted the first X-ray study of a globular cluster ...