New research suggests that this mystery platinum signature underneath the Greenland ice sheet may have originated from a volcanic fissure eruption in Iceland, not space.

Earth's mantle is so gooey, it takes eons for material that has been displaced by the weight of ice sheets to flow back. And ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Our new research offers a much more mundane explanation: this mystery platinum signature may have ...