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The most extensive set of in-depth observations of the oldest stars in the Milky Way's centre have been made by researchers as part of their study, proving that the universe still has many hidden...
Stars are easily identifiable due to their pure chemical composition, consisting mainly of hydrogen and helium
The PIGS survey sought out—and found—a group of metal-poor stars staying close to the galaxy’s core.
A group of astronomers comprising the Pristine Inner Galaxy Survey (PIGS) just found a large group of ancient stars circling the galaxy’s center in surprisingly orderly fashion.
Some of the stars born in the first billion years after the Big Bang are still around today.