Scientists spot fastest-rotating asteroid ever recorded: 'Thought to be impossible!'

Astronomers have identified the fastest spinning large asteroid ever recorded: a space rock measuring more than 700 metres across that completes a full rotation in less than 2 minutes. The object, designated 2025 MN45, was spotted by the Vera C. Rubin Observatory in Chile during its initial observation period in late April and early May 2025. At more than 500 metres wide, this asteroid rotates at a velocity previously considered physically impossible for an object of its size