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MIT researchers discover the universe’s oldest stars in our own galactic backyard

Three stars circling the Milky Way’s halo formed 12 to 13 billion years ago.

MIT astronomers discovered three of the oldest stars in the universe, and they live in our own galactic neighborhood. The stars are in the Milky Way’s “halo” — the cloud of stars that envelopes the main galactic disk — and they appear to have formed between 12 and 13 billion years ago, when the very first galaxies were taking shape.
MIT astronomers discovered three of the oldest stars in the universe, and they live in our own galactic neighborhood. The stars are in the Milky Way’s “halo” — the cloud of stars that envelopes the main galactic disk — and they appear to have formed between 12 and 13 billion years ago, when the very first galaxies were taking shape.
Image: Serge Brunier
Tuesday, May 14, 2024
By Jennifer Chu | MIT News