NASA Goddard Space Flight Center scientists ran 100 sophisticated simulations exploring jets — narrow beams of energetic particles — that emerge at nearly light speed from supermassive black holes. These behemoths sit at the centers of active, star-forming galaxies like our own Milky Way galaxy, and

The Double Asteroid Redirection Test (DART) has proved that NASA could potentially push a hazardous space rock off of a collision course with Earth.