There's a brand new glacier in Washington and it's growing. And of all places, it's on top of an active volcano. Now this is a little weird because glaciers and volcanoes don't usually co-exist very well.

Afterall, one's ice and one is lava. But to get a glacier, all you need is a bunch of show that piles up faster than it can melt. And over time it hardens into a big sheet of ice.

And so when Mount St Helens erupted in 1980, it left behind this crater that turned out to be a perfect little nest for a glacier. And so that crater on Mount St Helens created a shaded area where snow just never fully melts. And as snow built up over a few years, it formed a new baby glacier.

It's like a millenial. And when the volcano erupted again in 2004, it didn't melt the glacier. The ice just squeezed like silly putty to let the lava flow through and kept on growin'.