THE ROCK FROM MARS: The famous rock from Mars, ALH84001, was ejected into space by an asteroid impact on Mars long ago. It traveled through space for ~16 million years, and finally landed in the Allan Hills ice field in Antarctica about 13,000 years ago where it was collected by a team of scientists in 1984. More here.
(via geologyrocks)
THE ROCK FROM MARS: The famous rock from Mars, ALH84001, was ejected into space by an asteroid impact on Mars long ago....