Astronomers Discover Evidence of Ancient Galaxy Consumed by Milky Way

A team of astronomers has identified a unique group of metal-poor stars that may be remnants of a dwarf galaxy named Loki, which the Milky Way absorbed approximately 10 billion years ago. This discovery could reshape our understanding of the Milky Way's evolution, as it suggests that the galaxy grew by merging with smaller galaxies over time. The study, published in May, highlights 20 metal-poor stars located about 7,000 light-years from Earth, which share similar chemical compositions, indicating they originated from the same ancient galaxy. This finding emphasizes the importance of studying such stars to uncover the history of our galaxy's formation and its interactions with other celestial bodies.

Key Details: • 20 metal-poor stars identified, suggesting they are remnants of the dwarf galaxy Loki. • Stars located approximately 7,000 light-years from the solar system. • Study published in May in the Monthly Notices of the Royal Astronomical Society. • Observations conducted using the Gaia telescope and the Canada-France-Hawaii Telescope.