Water

Scientists have identified the 19th form of water ice. The exotic, four-sided crystals of this rare ice variety, now dubbed ice XIX, form at ultra-low temperatures and ultra-high pressures.

Heat from the Earth's interior may help sustain life in this bizarre environment.

Here's why snow is white and not clear like water or ice.

Separate shark attacks in Hawaii and the eastern Caribbean leave two people dead. Experts say tragedies like this are rare relative to the number of people in the water.

How do camels quench their thirst in the desert?

Find out what’s really in your water with a water quality testing kit. Here are the best ones on the market.

What are 'ice volcanoes,' and why are they erupting in Michigan?

The dry season is turning the pest creatures into dangerous competitors for limited water supplies.

When you look up at the moon, there may now be a few thousand water bears looking back at you.

Hot water is killing Florida's coral reefs. But it's not the only factor bleaching them white.