What we’ve learned about the red planet from 260+ Martian meteorites
What we’ve learned about the red planet from 260+ Martian meteorites A bubble of Martian atmosphere Small planets cool quickly and it has long been suspected that Mars’s core has largely but not totallycrystallized. This means Mars has mostly lost the protective magnetic field that deflects cosmic radiation. But we are confident Mars once had an ocean, containing water as we know it. The temperature was above freezing and conditions were suitable for life....