Using the James Webb Space Telescope and NASA's Chandra X-ray space telescope, scientists have observed the most distant and thus earliest galaxy cluster ever seen coming together. The infant cluster, ...

Galaxy cluster Abell 1489 is seen here in an image from the International Gemini Observatory. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Where it is: 3.7 billion light-years from Earth, in the constellation Carina When it was shared: June 30, 2025 Why it's so special: Galaxy clusters act as a magnifying lens, shining light on the ...

Astronomers using data from NASA’s Chandra X-ray Observatory and other telescopes have put together a detailed map of a rare collision between four galaxy clusters. Eventually all four clusters — each ...