A study reveals that parts of the Milky Way are much older than previously thought

The Milky Way’s thick disk is 2 billion years older than astronomers thought, and likely formed just 800 million years after the Big Bang, according to a new study based on an unusual type of star.

Our galaxy can be divided into two main parts: the thin disk, which contains Solar System Most of what we know as Milky Way; The thicker disc is the rarest, largest and oldest. To reconstruct the history of these components, a team of astronomers from the Max Planck Institute for Astronomy in Heidelberg, Germany analyzed a group of stars In the Milky Way galaxy known as sub-giants.


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