First-ever detection of 'monster stars' 10,000 times larger than the Sun

Scientists using the James Webb Space Telescope have discovered evidence of "monster stars" that were 10,000 times bigger than the Sun and formed in the early universe. These stars were found in globular clusters, which are collections of between 100,000 and 1 million stars that were formed at the same time. The cores of these stars were much hotter than those seen in stars today, and scientists suggest it could be due to an excess of hydrogen burning at high temperatures. Most of these globular clusters are approaching the end of their life spans, but the discovery could provide important insights into the formation of supermassive stars.