 Vesta is currently one of only six identified Solar System bodies of which we have physical samples, coming from a number of meteorites suspected to be Vestan fragments.It is estimated that 1 out of 16 meteorites originated from Vesta.The other identified Solar System samples are from Earth itself, meteorites from Mars, meteorites from the Moon, and samples returned from the Moon, the comet Wild 2, and the asteroid 25143 Itokawa.