Hubble Uncovers Galactic History Through Ancient Star Clusters

The NASA/ESA Hubble Space Telescope has captured a stunning image of the globular star cluster Messier 30 (M30), providing a glimpse into the galaxy's ancient past. Located about 27,500 light-years away in the constellation Capricornus, M30 is a roughly spherical grouping of stars containing tens of thousands to millions of stars. These clusters are impressively ancient, with ages estimated to be between 11.5 to 13.5 billion years, making them nearly as old as the universe itself. By studying globular clusters, astronomers can learn about the galaxy's development long ago and gain insights into its original chemistry. Hubble has observed M30 multiple times, collecting data that has helped researchers understand the cluster's composition and evolution. The image above was created with data from three observing programs, showcasing the wide range of wavelengths Hubble can see, from ultraviolet to near-infrared light. Each wavelength provides valuable information about how these groups of stars formed and evolved.