Stellar Collisions Were Common in Early Universe, James Webb Telescope Reveals

Phys.org · 2026-10-26
Stellar Collisions Were Common in Early Universe, James Webb Telescope Reveals

The James Webb Space Telescope has uncovered evidence that stellar collisions were far more frequent when the universe was young. By peering deep into space, the telescope observes the cosmos as it existed not long after the Big Bang, revealing extraordinarily compact stellar systems where stars were packed tightly together. In these dense environments, the vast distances that normally separate stars in today's universe were greatly reduced, making collisions much more likely. This challenges the long-held assumption that stellar collisions are rare everywhere and at all times. Understanding these early interactions helps astronomers piece together how galaxies evolved and how stars formed in the universe's infancy. The findings suggest that the chaotic early universe was a far more violent place than our current cosmic neighborhood.