NASA just discovered a living relic from the Milky Way’s earliest days hidden in plain sight

NASA proved Terzan 5 is not a globular star cluster but a living fossil from the Milky Way's earliest formation. Webb and Hubble jointly revealed four distinct stellar generations spanning 12.5 billion years. This reclassification reshapes how scientists understand galactic bulge formation. Terzan 5 may be the oldest surviving fragment of the galaxy's ancient building blocks — hiding in plain sight for decades.

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