NASA Telescopes Spot Surprisingly Mature Cluster in Early Universe
28 Jan 2026, 16:38 GMT
By Lee Mohon
Topic: Chandra X-Ray Observatory
Source URL: https://www.nasa.gov/missions/chandra/nasa-telescopes-spot-surprisingly-mature-cluster-in-early-universe/
A new discovery captures the cosmic moment when a galaxy cluster – among the largest structures in the universe – started to assemble only about a billion years after the big bang, one or two billion years earlier than previously thought. This result, made using NASA’s Chandra X-ray Observatory and James Webb Space Telescope, will