Comets appear from nowhere and then blaze across the sky in a magnificent display of cosmic fireworks before disappearing into the darkness. This film reveals our extraor ...

Alien worlds are out there. Astronomers now think almost every star has planets orbiting around it, creating billions of different environments in deep space. Weird bacte ...

Mars has been a tough training ground, with half the missions sent there ending in failure. Swirling dust storms, deadly radiation, and arctic temperatures await the firs ...

Asteroids are constantly threatening Earth, with thousands lurking too close to our planet for comfort. We travel to Arizona to meet the team who spend every night scanni ...

The Sun is a nuclear inferno, its surface raging with violent eruptions. Huge plasma storms eject electromagnetic debris across the solar system, with up to 20 threatenin ...

Black holes are nature's ultimate abyss, capable of swallowing up a star the size of our Sun in seconds. There are millions of them out there, too dark to see, but gobbli ...

The Daleks have begun their transformation to humanoid form however the human-Dalek hybrid, Dalek Sec, is raising doubts among the remaining three machine Daleks. He is s ...

This is the first of a two part story, it is set in 1930's New York. The Doctor and Martha arrive in New York, there is, however, trouble as the Daleks return once again, ...