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What looked like a planet was actually a massive space collision

Around the bright star Fomalhaut, astronomers spotted glowing clouds of debris left behind by colossal collisions between large space rocks. One of these clouds was even mistaken for a planet before slowly fading away. Seeing two such events in just two decades hints that violent impacts may be surprisingly common in young star systems. It’s like watching planets-in-the-making collide before our eyes.

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