
John Brandenburg | Nuclear Destruction, Ancient Civilizations, & Other Mars Mysteries
Permian Extinction, Ancient History and Global Catastrophe
Brandenburg estimates the Martian nuclear event occurred between 250 and 500 million years ago, based on the half-life of potassium isotopes. He notes this timeline coincides with Earth's Great Permian Extinction, where nearly all life except cockroaches perished. He speculates that the same aggressor who targeted Mars may have also attacked Earth, leading to the most severe mass extinction in terrestrial history.

