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Collisional ring galaxy NGC 922 Investigation of space space star formation in the Universe

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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. Find out how to view and contribute subtitles for the Hubblecast in multiple languages, or translate this video on dotSUB. Credit: ESA Hubble Visual

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