How many possible genetic relationships are there between a collection of different species? The answer is mind-bogglingly large.

Why evolution through natural selection is more than a mere "theory".

England may have bombed out, but the Euro 2016 Championships are still in full swing. Here are some articles by our favourite football expert, Ken Bray

We all instinctively recognise symmetry when we see it, but describing it in words is harder than you might think.

An insightful look at the climate models that predict our future.

Make your own climate prediction with this simple, but powerful, model!

Our messy desk is proof of the second law of thermodynamics...

Why the expected outcome of rolling a die is 3.5.

Some general ideas in very few words and without equations.

Why did physicists at the beginning of the 20th century feel they needed a new — and strange — theory?

Whatever you think of Donald Trump, we bet you didn't think he was good at game theory.