James Webb Telescope Unveils Ancient Star Clusters in Early Universe

Discovery of dense star clusters sheds light on galaxy formation and cosmic reionization shortly after the Big Bang

Astronomers found five massive star clusters in the 'Cosmic Gems' arc, dating back 460 million years after the Big Bang.
These clusters are significantly denser than modern globular clusters, offering insights into early star formation.
The discovery helps explain the epoch of reionization, when the first light sources illuminated the universe.
Gravitational lensing and JWST's sensitivity enabled the observation of these distant clusters.
Future studies with JWST aim to explore the physical properties and formation processes of these early star clusters.