A Klein bottle can't hold any liquid because it doesn't have an inside. How do you construct this strange thing and why would you want to?

Language analysis shows how the nation's tastes have changed.

A crowdsourced computing project looks for molecules that can disable the Ebola virus.

The company 23andMe made headlines by launching its DNA testing service in the UK. But how are the risks of developing a disease calculated?

Here's an easy game that leads you straight to an unsolved question in maths.

How to write down unimaginably large numbers using just a few symbols.

A little trig helps to find the relative distance to the Sun and Moon.

Bob Wald tells us why probabilities are important in cosmology.

Why maths is an important tool in the fight against Ebola.

Why do we add fractions the way we do? A very close look at addition reveals the answer — and it also works for negative numbers.