cones

Earth is littered with cones from space, and it’s our planet’s own fault. Most meteorites found on Earth are just randomly shaped blobs. But a surprisingly high number of them, about 25%, are cone-shaped when you fit all their pieces back together. Scientists call these conical space-stones “oriented meteorites.” And now, thanks to a pair of experiments published online today (July 22) in the journal Proceedings of the National Academy of Sciences (PNAS), we know why: The atmosphere is carving the rocks into more aerodynamic shapes as they fall to Earth. “These experiments tell an origin story for oriented meteorites,” … Read more