Using the NASA James Webb Space Telescope and Hubble Space Telescope, astronomers have made significant discoveries regarding star cluster formation within galaxies. By examining nearly 9,000 star clusters in four nearby galaxies, researchers found that massive clusters emerge from their gas clouds more quickly than smaller ones. Specifically, massive star clusters clear their surrounding gas in about five million years, while smaller clusters take between seven and eight million years. This rapid dispersal of gas affects the surrounding environment, impacting how stars and planets form. The study highlights the importance of stellar feedback, where winds and radiation from massive stars push away gas, thus influencing star formation in adjacent areas. Angela Adamo, a lead author and principal investigator of the FEAST programme at Stockholm University, noted that these findings provide crucial constraints for existing simulations of star formation. The research, published in Nature Astronomy, enhances our understanding of how galaxies evolve and may refine predictions about the conditions for planet formation around stars.