High-pressure experiments generated the first direct observation of plastic ice, which has qualities of both crystalline ice and liquid water.

TotalEnergies says it will work with Air Liquide on two projects in Europe, producing about 45,000 tons per year of green hydrogen.

At the very beginning of its history, Earth was dry. How did it become a blue planet? A new theory could provide an answer.

Snow is made up of trillions of tiny ice crystals to make snowflakes, with not one alike. Here's how they form.

Russia's state-owned Rosatom announced a prototype plasma engine which could speed up travel to other planets.