From Mercury to Earth? A meteorite like no other
NASA/Johns Hopkins University, Applied Physics Laboratory/Carnegie

For generations humanity has gazed into the heavens, to the stars and other worlds of our universe. As a species, we have traveled to the moon, and we have recovered pieces of Mars. Now, for the first time in human history, a fragment of the planet Mercury has been identified, delivered to Earth after an impact on Mercury’s surface blasted the stone into space.