A half million years ago, Antarctica was hit by a blowtorch from space

Enviado por Fabio el 2021-04-06 15:22:06 | Host: syfy.com

Sometime a bit less than a half million years ago, a decent-sized asteroid impacted over Antarctica. But it didn't hit the ground. Instead, it vaporized high above Earth's surface and created a white-hot blowtorch of superheated gas that touched down on the ice and released energies similar to that of a nuclear bomb.