A small chunk of rock that once broke away from Mars and found its way to Earth may hold clues that reveal surprising details about the red planet's formation.
and found its way to Earth may hold clues that reveal surprising details about the red planet's formation.
But how and when certain elements were incorporated into the planets has been tricky to piece together. We can tell the difference between these two sources by looking at ratios of isotopes of noble gasses, particularly krypton. And this is where it got really weird. The krypton isotope ratios in the meteorite are closer to those associated with chondrites. Like, remarkably closer.
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