Michael K. ShepardMichael K. Shepard is a Professor of Geosciences at Bloomsburg University in Pennsylvania, specialising in radar asteroid studies. Prior to this, he worked at the Smithsonian Air and Space Museum and the Jet Propulsion Laboratory in Pasadena, Califoria. His latest research involves bouncing radar off a specific group of asteroids, the M-class, which are thought to be metal cores of ancient protoplanets. He has discovered two asteroid moons, and has also been honoured with an asteroid named 20392 Mikeshepard. Read More Read Less