Pictured is an artist's impression of the two forms of ultra-viscous liquid water with different densities. In the background is depicted the X-ray speckle pattern taken from actual data of high-density amorphous ice, which is produced by pressurizing water at very low temperatures. | Mattias Karlén

Water May Exist as Two Very Different Liquids Simultaneously

Scientists have long pondered the strange qualities of water, and researchers in Sweden have just found that at room temperature it might at once exist as two distinct liquids with differing densities and molecular structures.