Astronomers study Andromeda’s star clusters and spiral arms via the Hubble Telescope, uncovering insights into star formation and galaxy evolution. Clusters of stars set the interstellar medium ablaze in the Andromeda Galaxy about 2.5 million light-years away. Also known as M31, Andromeda is the Milky Way’s closest major galaxy. It measures approximately 152,000 light-years across […]
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