Zircons – one of the most commonly used geochronometers – found within the Martian meteorite NWA 7533 have enabled an international team of scientists to determine the age of the Red Planet’s crust. 4.43-billion-year-old Martian meteorite NWA 7533. Image credit: Meteorites.tv. NWA (North West Africa) 7533 was unearthed by Bedouin tribesmen in the Sahara desert. It is a highlands breccia, which sets it apart from all other Martian meteorites....
