NASA embarks on a six-year journey

NASA’s Psyche spacecraft has blasted off and begun a six-year, 2.2-billion-mile journey to a peculiar asteroid. Astronomers have speculated that the space rock, also named Psyche, was once the partial core of a small planet in the early days of the Solar System. The seemingly iron- and nickel-rich asteroid may hold clues to the formation of planets, including our own. Learn more about your ad choices. Visit podcastchoices.com/adchoices