Will DART slamming into an asteroid's moon cause it to tumble chaotically?

In November 2021, NASA is launching a bold mission to test the technology needed in case we ever have to push a potentially hazardous asteroid off of an Earth-impacting trajectory. Called DART — for Double Asteroid Redirection Test — the 500-kilogram spacecraft will slam into an asteroid’s moon at over 23,000 kilometers per hour, changing the moon’s velocity by a tiny amount.

The idea is that if we ever find an asteroid headed our way, a future DART-like spacecraft can hit it and change its spe...