Add Yahoo as a preferred source to see more of our stories on Google. In this image taken from video, a SpaceX Super Heavy booster is seen exploding June 18 at a test site near the city of Starbase.

STARBASE — The late-night blast sent a fireball more than 2,000 feet into the South Texas sky and shook a miles-long swath of the Rio Grande Valley with the force of the military’s most powerful bombs ...