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Galaxy Seen Shuddering from Ancient Collision

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Andromeda galaxy

Thousands of Hubble Space Telescope exposures went into creating this image.

Credit: NASA, ESA, R. Gendler, J. Dalcanton/University of Washington and the PHAT team

Using thousands of exposures from the Hubble Space Telescope, astronomers have created the sharpest and deepest image ever assembled of the Andromeda galaxy.

From Nature
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