NASA’s DART spacecraft was deliberately crashed into a moonlet called Dimorphos, in a world-first mission to test whether asteroids or comets could be moved out of the way to protect the Earth. #DARTmission #nasa #asteroid #spacetok #earth #science | NASA’s DART mission is the world’s first ever planetary defence test. | POV: You’re a spacecraft crashing into an asteroid to protect Earth | NASA deliberately crashed a spacecraft into a harmless asteroid to trial technology that could protect Earth from potential asteroid collisions.