Quick Look: NASA Telescopes Spot Surprisingly Mature Cluster in Early Universe
A growing galaxy cluster has been found at a time astronomers did not expect it.
Galaxy clusters are some of the largest structures in the entire universe.
Deep looks from NASA’s Chandra and Webb enabled this discovery.
This “protocluster” exists at least a billion years earlier than scientists predicted.
More at: https://chandra.si.edu/photo/2026/protoc