Which specific celestial structures are known as the most famous locales for ancient stars?

Answer

Globular Clusters.

Globular clusters are highlighted as particularly famous locales for housing extremely ancient stellar populations. These structures are defined as being tightly bound, spherical collections containing potentially millions of stars, and they typically orbit the galactic center tracing paths through the halo. Because these clusters formed very early, possibly even preceding the assembly of the main Milky Way structure, they function as excellent, densely packed laboratories for simultaneously studying the earliest stellar populations assembled from nearly pristine material.

Which specific celestial structures are known as the most famous locales for ancient stars?
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