2nd Generation of Stars Can Rise from Stellar Clusters

"Star clusters are building blocks of galaxies — almost all stars formed in star clusters," said study lead author Chengyuan Li, an astronomer at Peking University in Beijing. Stars in globular clusters are thought to all form at the same time in a single burst from a common cloud of gas. "In a star cluster, the first stellar generation usually contains very massive stars, and those very massive stars will contribute very high-energy photons — that is, X-ray photons — into thei