Several stars that appeared to have formed 12 to 13 billion years ago were spotted in the Milky Way halo—basically, our galaxy's suburbs.
Some stars in our very own Milky Way are some of the earliest ever seen, according to research published today in the Monthly Notices of the Royal Astronomical Society. The stars are in the Milky Way ’s halo, a shroud of stars that surrounds the galactic disk. The stars are also relatively close, at just 30,000 light-years from Earth. The team found that the stars are between 12 billion and 13 billion years old, clocking them to around the same time as the earliest stars we can see.
Like the recently spotted stars—and another group of stars spinning near the galactic center—Earendel is metal-poor, indicating that it formed so early in the universe that heavier elements had not yet made their way into stars like our Sun. The apparently ancient, metal-poor stars inspected by the team were moving in the opposite direction to most of the stars in the Milky Way halo.
Galactic Center Stellar Archaeology Stellar Halo RAVE Galaxies Galactic Halo Dwarf Galaxy WHL0137-LS Earendel Technology Internet Human Interest Milky Way Gizmodo
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