Space rock on my mantlepiece

[Brian Halligan]

M Holmes wrote:
> I'm puzzled by that. Surely anything knocked off the Moon by meteoric
> impact would already be in an Earth-crossing orbit. Seems therefore
> much
> more likely that these would hit Earth than the same situation on Mars.

Perhaps Moon rocks are harder for the average person to identify as
"otherworldly" and therefore fewer are brought to the attention of
those who study meteorites?

Brian