Plastic Ice VII

Plastic Ice VII

Scientists uncover 'mysterious' fourth form of water that could exist on alien worlds.

Introduction 

Scientists have discovered plastic ice VII, the fourth stage of water found under extreme conditions. Created by applying high pressure and temperature, this unique phase of water may exist on other planets. The study, using quasi-elastic neutron scattering (QENS), provides insights into water's behaviour outside Earth, with implications for understanding extraterrestrial habitability.

Traditional form of water

Water is a common compound we are used to seeing in three forms—solid, liquid, and gas. But new pioneering research has devised a sensational new form of water known as plastic ice VII that could be met outside our universe, even on other planets.

Theoretical models had already indicated its existence, but this study brings the first solid evidence of its existence.

How is Plastic ice VII formed?

Researchers create Plastic Ice VII the fourth form of water with QENS

Researchers at France's Institute Laue-Langevin (ILL) performed an experiment to form plastic ice VII. Applying pressures of 6 gigapascals (about 60,000 times atmospheric pressure on Earth) and heating water to temperatures of up to 327°C (620°F), scientists managed to create this long-hypothesized substance.

Applying high-fidelity equipment and sophisticated methods, including quasi-elastic neutron scattering (QENS), the scientists minutely examined the motions of tiny particles, including hydrogen atoms, that constitute water molecules.

QENS - quasi-elastic neutron scattering

As per reports, the method QENS is used, which follows the motion of particles at the atomic scale. The technique is important because it enables researchers to observe both the translational and rotational motion of particles, giving a clear indication of how molecules behave under extreme conditions.

The discovery reaffirms a forecast 17 years ago that hydrogen atoms in Ice VII move abnormally on heating and compression. Contrary to what was initially estimated, the hydrogen atoms do not show the conventional "free rotor" type of motion but instead display a different mechanism of molecular rotation.

The discovery is contrary to the previous assumptions and shows that plastic ice VII moves differently than other types of water.

This new plastic ice VII discovery is a landmark for research into the study of water and its nature in extreme conditions. It not only validates existing theory models but also brings into the fore additional new questions concerning water and other molecule behavior under extraterrestrial conditions.

Compiled by

Ms Naresh kuwar