Harvard scientist claims Mars civilization was wiped out by nuclear attack. Physicist Dr. John Brandenburg proposed that certain features on Mars could point to a massive thermonuclear event in the distant past. He suggested that regions like Cydonia may have once been home to intelligent life, which he referred to as ancient Martian civilizations. His theory centers on unusual chemical signatures in the Martian atmosphere, particularly elevated levels of Xenon-129. On Earth, this isotope is associated with nuclear reactions, and Brandenburg argues that its presence on Mars could indicate the remnants of a large-scale explosion. He also proposed that Mars’ red appearance might not be due only to iron oxide, but could include fallout from such an event. According to his hypothesis, this explosion may have occurred around 100 million years ago and could have wiped out any existing life on the planet. However, scientists note there is no confirmed impact crater, no clear blast evidence, and no geological signatures that would point to a nuclear explosion. The idea remains highly controversial and unproven. "Harvard scientist claims ancient civilisation on Mars was wiped out by a nuclear attack from alien race." Unilad.