The Andromeda Galaxy is bearing signs of a catastrophic collision

Astronomers have traced the violent and catastrophic evolution of Andromeda, our closest galactic neighbor, by analyzing the composition and motion of more than 500 stars in the nearby galaxy.

Located 2.5 million light years from Earth, Andromeda is the closest big neighbor to our galaxy, Milky Way. He is believed to have had a number of interactions with others galaxies and spherical clustersforming structures like the giant stellar stream of Andromeda.

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