New Results From NASA's DART Mission Confirm We Could Deflect Deadly Asteroids

What would we do if we spotted a hazardous asteroid on a collision course with Earth? Could we deflect it safely to prevent the impact? Last year, NASA's Double Asteroid Redirection Test (DART) mission tried to find out whether a "kinetic impactor" could do the job: smashing a 600-kilogram spacecraft the size of a fridge […]