Pieces of Mars Are Among the Bodies Colliding with Earth

In order to understand meteorite impacts on Earth, it is important to know where the chunks of rock come from.

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Rohit Bhartia of NASA's Mars 2020 mission holds a  slice of a meteorite scientists have determined came from Mars. One of  two slices will be used for testing a laser instrument for NASA's Mars  2020 rover while it's still on Earth; the other slice will go to Mars  onboard the rover.  Credits:  NASA/JPL-Caltech

Rohit Bhartia of NASA's Mars 2020 mission holds a slice of a meteorite scientists have determined came from Mars. One of two slices will be used for testing a laser instrument for NASA's Mars 2020 rover while it's still on Earth; the other slice will go to Mars onboard the rover.

Credits: NASA/JPL-Caltech