Click for next articleA newly found Mars meteorite is revealing the secrets of a previously hidden time period of Red Planet geological history. The only meteorites known from this time range, roughly 1.3 billion to 1.4 billion years ago, are rarer types known as chassignites and nahklites. "No other Martian meteorite like this has an age of 1.27 billion years old." A different Mars meteorite found in Northwest Africa, known as 7635. Next up will be looking at the meteorite's isotopes to figure out its connection to other meteorites formed early in Martian history.