Supercritical water, a mysterious state where water behaves like both a liquid and gas, has long puzzled scientists.

When exposed to high temperatures and pressure, water enters a state in which liquid and gas can no longer be distinguished. For a long time, there has been controversy about how this looks like on a ...

“Second sound is the hallmark of superfluidity, but in ultracold gases so far you could only see it in this faint reflection of the density ripples that go along with it,” lead author Martin Zwierlein ...

Researchers at Ruhr University Bochum, Germany, have shed light on the structure of supercritical water. In this state, which ...