NASA Conducts First Planetary Defense Test
NASA wrapped up its first-ever planetary defense technology demonstration on Monday evening, crashing a spacecraft into an asteroid with the goal of altering its orbit. The Double Asteroid Redirection Test (DART) targeted the asteroid Dimorphos, which measures 530 feet (160 meters) in diameter and orbits a larger asteroid named Didymos. The 1,260-pound (570-kilogram) spacecraft hit […]