Water is a ubiquitous liquid with many highly unique properties. The way it responds to changes in pressure and temperature can be completely different from other liquids, and these properties are essential to many practical applications and particularly to life as we know it. What causes these anomalies has long been a source of scientific exploration, but now, an international team of researchers that includes Nicolas Giovambattista, a professor at CUNY, has proved that water can exist in two different liquid states—a finding that can explain many of water's anomalous properties. Their research appears in a paper published in the November 20 issue of the journal Science.