A protogalaxy in the Milky Way may be our galaxy's original nucleus

Millions of ancient stars spanning about 18,000 light-years at the Milky Way’s heart are the kernel around which the galaxy grew, researchers say.

Mysterious 'ancient heart' of the Milky Way discovered

A Protogalaxy in the Milky Way may be our Galaxy's Original

IAL 28: Galaxies

Ancient Stars Somehow Survived Close to the Center of the Milky

Basics Stars – NASA Universe Exploration

The Milky Way Demystified

Stellar Outburst Brings Water Snowline into View - National Radio

Hubble Space Telescope 2021 - eoPortal

At Live Science: Mysterious 'ancient heart' of the Milky Way

The Formation of the Galaxy

Astronomers identify the ancient heart of the Milky Way galaxy

Milky Way Flashcards

In the Milky Way's Stars, a History of Violence

How Did Galaxies Form?

Was our Galaxy a fresh Galaxy or a result of a supernova? - Quora