While boulders, which are typically any stone greater than 10 inches in diameter, can be used in different styles of garden beds, not all applications are decorative, said Rob Holly, a landscape ...

The boulders are not debris from the asteroid itself, but were likely already scattered across the asteroid's surface, according to photos taken by the spacecraft just seconds before the collision.

The Hubble Space Telescope has spotted a swarm of boulders around the asteroid Dimorphos, which NASA’s DART spacecraft intentionally hit last fall. The Double Asteroid Redirection Test ...