This Is the Insane Metallic World NASA Wants to Explore Next

NASA announced the finalists for its next round of planetary explorations. There were the usual suspects—Venus, Jupiter’s asteroids—and, then, there was this: An asteroid, composed almost entirely of (possibly magnetic) metal, with a crust literally beaten away by interstellar collisions, named Psyche. Pardon? »10/01/15 3:45pm10/01/15 3:45pm