PROMONTORY, Utah — An explosion at Northrop Grumman’s remote rocket testing site in northern Utah destroyed a building Wednesday. Officers found no injuries or fatalities in their initial ...

This photo provided by the Box Elder County Sheriff's Office shows the wreckage from an explosion at Northrop Grumman's remote rocket testing site on Wednesday, April 16, 2025, in Promontory ...

PROMONTORY, Utah (AP) — An explosion at Northrop Grumman’s remote rocket testing site in northern Utah destroyed a building Wednesday. Officers found no injuries or fatalities in their initial ...