“The Death of Mars” –Did a Pluto-Size Asteroid Ignite Ancient Climate Change?

    In the mid-1980s, a group of American archaeologists pored over satellite images trying to understand what had become of the Mayan civilization that had once ruled over Mexico‚Äôs Yucatan Peninsula, discovered a pattern: a near-perfect ring of sinkholes -cenotes- about 200 kilometers across, encircling the Yucatecan capital, Merida, and port towns of Sisal … Continue reading “The Death of Mars” –Did a Pluto-Size Asteroid Ignite Ancient Climate Change?