Astronomers using data from NASA’s Chandra X-Ray Observatory and other telescopes have put together a detailed map of a rare collision between four galaxy clusters. Eventually all four clusters—each with a mass of at least several hundred trillion times that of the sun—will merge to form one of the most massive objects in the universe.

Abell 1758 system [Credit: Chandra X-ray Center]Galaxy clusters are the largest structures in the…

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Source: archeo