In the TV game show Two Tribes teams can have unequal sizes. Is that fair?

Folding a piece of paper in half might be easy, but what about into thirds, fifths, or thirteenths? Here is a simple and exact way for fold any fraction, all thanks to the maths of triangles.

Why the humble average can be grossly misleading.

How to approximate the English language using maths.

Take a trip into the never-ending.

The telescope discovers the oldest solar system to date.

Two mathematicians' visit to the desert sheds new light on avalanches.

Observers are, of course, vital in physics: we test our theories by comparing them to our observations. But in cosmology, as Jim Hartle explains, we could be one of many possible observers in the Universe and knowing which one we are is vital in testing our theories.

Find out about the maths in doctor Who, and the film and gaming industry more generally.

Play with our applets to explore the conic sections and their different definitions.

To celebrate the release of more English translations of Einstein's papers, we revisit one of his previously unknown models of the Universe.