Water

The search for life continues, with exploration narrowed to deep below the Martian surface.

Officers arrested the teens because they were in violation of the National Mall's vending regulations, which prevents people from selling items without a permit.

We need good roads, bridges and railways, not another tax dodge for the rich.

Eyes in the sky to locate water resources may be many Middle Eastern nations' best hope for alleviating an acute water supply problem.

There's no gain in the U.S. participating in a treaty that combines bad science with bad economics.

Documents have revealed how ISIS tested chemical weapons on prisoners, leading to their agonizing deaths.

Scientists showed the potential habitability of the planet under different atmospheric conditions and orbits using a state-of-the-art model.

New maps and images provide more evidence that life may once have existed on Mars.

Drone footage captured pits full of water that had been turned dark red by pollution.

Scientists have figured out how to use the 'wonder material' graphene to desalinate seawater.

As the U.S. and Kurd-backed Syrian Democratic Forces battles with ISIS over the Tabqa Dam, the Syrian army repelled rebels in Damascus and Hama.

India's sacred Ganges river and its main tributary, the Yamuna, have been declared "legal and living entities having the status of a legal person."

Law enforcement can use the nanotechnology to track artifacts, though some are skeptical the trafficking is as widespread as reported.

Trump's executive order directs the Justice Department to ask a federal court to put legal challenges to the rule on hold as the administration conducts its review, a senior official said.

Nearly half the population will not have a reliable food source by summer.

The new machines could represent the biggest leap forward in the industry since electric-powered washing machines.

Fighting flares in Avdiivka as electricity and water links fail for its trapped residents.

Tests showed lead levels in the city's drinking water were 12 parts per billion (ppb) between July and December, below the federal limit of 15 ppb, Michigan officials said in a statement.

Even the most familiar substance still has secrets hiding within.

Authorities say the protesters were aggressive, starting fires and hurling rocks.

Climate change and noise pollution could silence cod and haddock chatter.

This shoebox-sized spacecraft could transform the way we store and use energy.

Results from NASA's mission to the huge 1 Ceres asteroid have been worth the wait.

Downpour of up to 8 inches of rain caused the Missouri River to flood streets.

New patent from Apple prompts speculation of a waterproof iPhone.

Olympics officials reveal hydrogen peroxide caused the diving pool to turn green.

Organizers of the Rio Olympics are struggling to supply enough food and water to visitors.

The Syrian city has now been without running water for four days, according to the U.N.

Toxic water isn't the only threat at the 2016 Olympics in Rio de Janeiro. The air is pretty bad too, according to a new report.

Abbas lacks charisma and wears a suit and tie, unlike Yasser Arafat, but those qualities should not be mistaken for any intention to sign a peace deal.