It's Spring!

It's Spring!

Why do we have seasons?
Evolution of the moon

Evolution of the moon

Why do we need the moon?
Astronomers find ‘billions of planets’

Astronomers find ‘billions of planets’

There are other planets everywhere we look in the sky
ET hasn't phoned home … yet

ET hasn't phoned home … yet

Scientists say sorry for false alarm over alien contact
Mars Science Laboratory blasts off

Mars Science Laboratory blasts off

NASA launches Mars Curiosity rover

Voyage to the bottom of the sea
First ever solo journey to Earth's deepest point

Animal testing - the facts
What do you think about testing medicines on animals?

A hidden coral world, deep in the oceans
The deep ocean reveals its secrets.