A: To determine the age of a globular cluster, astronomers rely on the assumption that all the stars in the cluster formed at the same time and are the same distance from us. But the stars don’t all ...
We obtained archival Hubble Space Telescope Wide Field Camera 3 observations of the NGC 1651 field in the F475W (‘B’) and F814W (‘I’) broadband filters (Methods). The corresponding colour–magnitude ...
A sweeping new study has pulled back the curtain on the chaotic early lives of young stars, revealing that stellar infancy is far more turbulent and variable than previously thought. Over ten ...
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