Researchers have found high levels of potentially harmful PFAS chemicals in rainwater samples across the U.S. ...

Sand dunes of Cracross Desert, the smallest desert in the world, in Yukon, Canada, are seen above. (Jef Wodniack/Getty Images) At a Glance At just about one square mile in area, the Carcross Desert is actually smaller than the "Mile Square City" of Hoboken, New Jersey.Technically, Carcross isn't actually a desert because the area receives too much precipitation year-to-year. No, your eyes aren't deceiving you, that's a sandy desert with picturesque mountain backdrop you see in the photos above. Even...

Florida’s invasive lionfish can be difficult to control -- so the state is looking to a high-tech, harpoon-throwing robot to help. ...