Wave power

Wave power

The first ocean wave energy-capturing device with a permit to connect back to a public power grid will enter the Pacific next month. More »

Fuel Faves: Coffee meets diesel!

Fuel Faves: Coffee meets diesel!

Oils in spent coffee grounds are easily converted into biodiesel — a renewable source of transportation energy. Bottoms up for More »

Science Meets Sports

Science Meets Sports

The Why Files looks at kinesiology, sports medicine, psychology and some ancient Olympic history, brought to life. More »

Understanding Volcanoes

Understanding Volcanoes

How do volcanoes work, and how accurate are predictions? How have volcanoes changed the landscape? More »

Ancient Universe Seen

Ancient Universe Seen

Astronomers have just seen galaxies from the first billion years of the universe. They are also racing to understand dark energy. More »

Nuclear Wizard Dies

Nuclear Wizard Dies

Edward Teller helped invent the hydrogen bomb, then pushed missile defense. He changed the 20th century. More »

Tornadoes: Power & Fury

Tornadoes: Power & Fury

Tornadoes kill 60 Americans each year. How do we predict tornadoes? How do we make houses safer? Where do tornadoes get their energy? More »