New Horizons is the first mission to the Kuiper Belt, a gigantic zone of icy bodies and mysterious small objects orbiting beyond Neptune. This region also is known as the “third” zone of our solar system, beyond the inner rocky planets and outer gas giants. Johns Hopkins University Applied Physics L

SpaceX’s massive Starship rocket exploded minutes after it cleared the launch pad during a flight test Thursday. Elon Musk had said the test posed steep challenges and risks.