Our Milky way Galaxy is 13.61 billion years old. However, Galaxies are presently thought to have started building after the Big Bang

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When did galaxies first appear?

“Galaxies, we think, begin building up in the first billion years after the big bang, and sort of reach adolescence at 1 to 2 billion years.Jan 19, 2021

 

Back to the Beginning: Probing the First Galaxies with Webb

NASA (.gov)

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