![Graphic of boulder swarm around an asteroid](https://physicalsciences.ucla.edu/wp-content/uploads/2023/08/asteroid-graphic.jpeg)
Planetary defense test deflected an asteroid but unleashed a boulder swarm
UCLA-led study of NASA’s DART mission determines that the strategy presents previously unanticipated risks
UCLA-led study of NASA’s DART mission determines that the strategy presents previously unanticipated risks