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    Hubblecast 60: Galaxy Scores a Bullseye

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    Michael500ca

    by Michael500ca

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    Episode 60 of the Hubblecast explores NGC 922, a galaxy that has been hit square-on by another. Ripples of star-formation are still propagating out across thousands of light-years of space over 300 million years after the collision, making it a prime example of what astronomers call a collisional ring galaxy.

    Credit: ESA/Hubble