Researchers discovered a million-light-year gas halo around a galaxy, suggesting earlier galactic interactions involving the Milky Way and Andromeda.

Researchers have identified a gas halo around a galaxy, extending up to a million light years, suggesting that galactic interactions may have begun earlier than previously thought, potentially involving the Milky Way and Andromeda. This study, published in Nature Astronomy, utilized advanced imaging techniques with the Keck cosmic web imager to analyze the circumgalactic medium, enhancing our understanding of galaxy evolution and the boundaries between galaxies and the cosmic web.

September 06, 2024
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