Webb just clocked nearly 9,000 young star clusters and found the biggest ones break from their birth clouds in 5 million years, a timing clue that could reshape how astronomers model galaxies growing up - Space Daily

The James Webb Space Telescope has given astronomers a sharper look at how young star clusters escape their birthplaces, and the result cuts against the simple intuition that smaller clusters should clear out faster. In a Nature Astronomy study, researchers u…