So clear, in fact, that it appears to be the color of whatever surface is beneath it. Since that’s often a black asphalt road, we call it “black ice.” The transparent nature of black ice is ...

The Eben Ice Caves aren’t just frozen waterfalls. They’re a physics lesson in slow motion. Each winter, water trickling through Michigan’s UP limestone creates caves made entirely of ice, forming ...

The study, which was published in Nature late last year ... The U.S. Environmental Protection Agency says that sea ice's ...