Explore H2O: The Molecule That Made Us
Huge Underground Reservoir Holds Three Times as Much Water as Earth’s Oceans
Most of Earth’s water, according to a new study, may actually be locked in a reservoir 400 miles underground.
What exactly went wrong in Flint—and what does it mean for the rest of the country?
Life's Rocky Start
What is the secret link between rocks and minerals, and every living thing on Earth?
Making North America
Host Kirk Johnson explores how the continent was shaped—and how it shaped us.
Finding Earth-Like Planets
Miles of Water Found on Mars. Could It Support Life?
It might be a breakthrough discovery in the search for extraterrestrial life.
Silver Nanoparticles Could Give Millions Microbe-free Drinking Water
Indian researchers are using silver-based nanochemistry to bring clean water to underserved areas at low cost.
Earth From Space
Detailed satellite images reveal the web of connections that sustain life on Earth.
Scientists Unveil An Eco-Friendly Way to Disinfect Water Using Light
A Chinese research team has developed a way to use light to purify water in half an hour without leaving behind metal pollutants.
How Water Is Reshaping the West
New dams and reservoirs are unmistakably altering the American West’s iconic landscapes.