NASA: there is water on Mars

Until 3 billion years ago, Mars was a wet planet much like our own. It had land, an extensive atmosphere…

Meet our newest ancient ancestor!

In an exciting paper published today, palaeo-anthropologist Lee Berger and his team from the University of Witwatersrand in Johannesburg, South Africa,…

What are chemicals?

This question was asked by Elizabeth from West Sussex, UK.    Chemicals are everywhere. Everything made of matter (anything you…

Space lettuce!

If you want a fresh salad you might take a trip to the shop, or maybe to your allotment. But…

The science of cake

Baking’s great – you combine a few ingredients, add heat and end up with something tasty. But did you know…