Sarah Hörst, an Assistant Prof of Planetary Science at Johns Hopkins University, recently got to hold a piece of the moon and mars in her hand and shared her excitement
Sarah also took time to answer some of the most common questions:
The black one is the Martian one, the gray one is the moon
The martian one landed on Earth after something smacked into Mars and sent rocks flying through space and all the way to Earth!
They were able to tell it was from Mars by the rock’s chemical composition and isotopes
You can read more about the Martian meteorite here
The two rocks now have their own Twitter account