Weird water X-rayed

An explanation as to why water has such anomalous thermodynamics properties could lie in X-ray scattering data that reveal it two exist in two liquid states around 227 Kelvin. Such temperatures are usually considered a no-man's land because ice nucleates before such temperatures can be reached. However, with a femtosecond X-ray laser and a nanodroplet of water suspended in a vacuum it has nevertheless been possible to investigate liquid water at this temperature and to look at the differences between "normal" water and heavy water.