Asteroids · 2
Metallic Asteroids
Metal-rich (M-type) asteroids, such as the mission target 16 Psyche.
A large metal-rich main-belt asteroid, the destination of NASA's Psyche mission to study a possible exposed planetary core.
CategoryMain beltTypeMetallic (M)Diameter222 kmDiscovered1852The first Mars-crossing asteroid discovered — its orbit crosses that of Mars.
CategoryMain beltTypeMetallic (M)Diameter42 kmDiscovered1873