"In general, space rocks larger than a kilometre can’t rotate more than once every 2.2 hours because they would break apart. But smaller #asteroids like #2024BX1 can withstand much faster spins because they are more compact."

https://www.newscientist.com/article/2428473-asteroid-that-broke-up-over-berlin-was-fastest-spinning-one-ever-seen/

#Astronomy

Asteroid that broke up over Berlin was fastest-spinning one ever seen

Before it shattered over Germany, the asteroid 2024 BX1 was clocked rotating once every 2.6 seconds – the fastest spin we have observed

New Scientist