Welcome to Cosmos in a Pod! I’m your host, Amitesh, and today, we’re unraveling the mysteries of globular clusters, the dense, glittering spheres of stars that orbit galaxies like ancient guardians. These cosmic structures are not only breathtaking but also hold clues to the early universe, the evolution of galaxies, and the life cycles of stars.

Episode Highlights

What Are Globular Clusters?

• Definition: Dense, spherical collections of stars bound by gravity, often found in the halos of galaxies.
• Key Features:
  • Contain tens of thousands to millions of stars.
  • Extremely old, with ages ranging from 10–13 billion years.
  • Primarily composed of low-metallicity stars from the early universe.