Afterglow of cataclysmic collision between two planets seen for first time

Collision of two ice giant planets produced hot, spinning object potentially hundreds of times the size of Earth

The warm afterglow of a worlds-shattering collision between two massive planets has been seen for the first time after astronomers trained their telescopes on a distant sun-like star.

The cataclysmic event is believed to have destroyed a pair of ice giant planets that slammed into one another to produce a shower of debris and a hot, spinning object potentially hundreds of times the size of Earth.

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