TED is a small nonprofit devoted to Ideas Worth Spreading -- through TED.com, our annual conferences, the annual TED Prize and local TEDx events.

YouTube is a place to discover, watch, upload and share videos.

we heart it - get inspired by what people love, and show them what inspires you.

The Jet Propulsion Laboratory is the lead U.S. center for robotic exploration of the solar system, and conducts major programs in space-based Earth ...

Twitter is without a doubt the best way to share and discover what is happening right now.

Facebook is a social utility that connects people with friends and others who work, study and live around them. People use Facebook to keep up with fr...

Prezi is the zooming presentation editor

Calling on all young artists to use their creative talents to imagine a ?World Free of Nuclear Weapons.? Contest is open to children and teens, ages ...