Cambridge mathematicians and physicists remember their most famous colleague with fondness.
To understand the why the cosmic microwave background tells us so much about the Universe, you first need to understand what created it: sound waves travelling through the early Universe.
What is dark energy and how do we know it's there?
Since he Universe is all there is, there's nothing for it to expand into. So what does "expansion" mean?
Cosmology has an ambitious goal: to understand the Universe in its entirety. Find out more here.
Taking apart the CMB picture using the maths of sound.
Rock and its use for tools and buildings has shaped human civilisation. Here's an introduction to the maths of rocks.