What if Earth once had rings like Saturn? Dr. Andy Tomkins joins Markus to unravel the evidence that, 466 million years ago, a colossal asteroid breakup may have encircled our planet with a shimmering band of debris. From the science of ancient meteorites to the climate effects of planetary rings, this episode explores how cosmic events have shaped our world—and what they might mean for life, extinction, and the future of planetary science.






