An arctic blast has sent cold air across the United States, causing trees to break suddenly in what looks like an explosion.

Most trees are dormant through the winter's coldest months.

The phenomenon of "exploding trees" is actually caused by frost cracking, which occurs when the sap wood behind the tree's ...

A viral claim suggested trees can explode in the Arctic cold. That's not entirely true, though they do crack under the pressure.

Image Credit: Survival World ...