NOVA

Paleontologists discover that dinosaurs thrived in unlikely places such as the cold and dark Arctic Circle.

Jupiter's gravitational force made it a wrecking ball as it barreled through the early solar system, but it also helped shape life on Earth as it brought comets laden with water and possibly the asteroid that put an end to the dinosaurs.

The dry, red planet Mars was once a blue water world studded with active volcanoes and may have even had the ingredients to support life.

A unique site in southern England preserved rare traces of ancient ice age mammoths and Neanderthals; host David Attenborough.

The unique properties of metals and how they've helped lead human civilization from the Stone Age to a hi-tech world.