

Season 53
20268 EpisodesDocumentary
Episode Guide
Imagine Earth's primordial era as a molten, volcanic furnace, relentlessly pelted by colossal asteroids. For ages we've feared these cosmic impacts as destroyers of life, but a provocative theory proposes they may be the very spark of our existence. Delve into the idea that these violent collisions delivered the essential ingredients—water, minerals, and energy—needed for life to ignite on our planet. See how scientists are uncovering evidence from lunar rocks and ancient impact craters, suggesting that the objects once blamed for extinguishing life might actually have ignited it.