A light that is powered through gravity. This could be the low cost light bulb of the future.

Human powered helicopter breaking new record.

Solar impulse flying across the United States on solar energy.

Planetsolar. Around the world on solar power.

Simple and elegant solution to harnessing solar power.

The unsafe Chernobyl reactor is going to be encased by Novarka using the following process.

Kinetic sculptures.

Full scale solid rocket testing at NASA. This one is the largest of its kind ever made.

Solar impulse's first 24 hour nonstop test flight. This could be a revolution in aviation history.