The known universe as mapped through astronomical observations, from the Himalayas to the moon's orbit, the orbits of the planets, the solar system, the galaxy and beyond.

Stand By Me sung and played beautifully by unknown street artists from all around the world. From the documentary "Playing For Change", which is about undiscovered musicians.

Fusion power has just come a step closer to reality. This New Scientist video demonstrates how it works.

This cheerful and original air safety video from Air New Zealand is lot more fun to watch than the usual air safety demonstrations.

Click here to watch in HD. A beautiful copyright free, non-profit documentary about planet earth, balance, climate change, melting glaciers, deforestation, energy and agriculture.