# Articles

A bit of graph theory can help to identify key players in a criminal network.

Should we again reduce our social contacts? Is vaccinating 12-to-15-year-olds effective? What about boosters? The *ready reckoner* helps provide some answers.

There are many ways of explaining technical ideas, and using a range of strategies can give the most intuitive understanding.

If you ignore exponentially small terms they can come back to bite you.

How a question about rainbows led to an entire field of mathematics.

Mathematicians from across maths and physics and around the world gathered to celebrate Sir Michael Atiyah.

We may be a little closer to a direct detection of dark energy thanks to a new result that came about, in a sense, by accident.

This inspiring conference featured speakers from Africa, the US, the Caribbean and the UK. Here are some highlights.

How can sporting events, concerts, or festivals be kept safe in the face of rising COVID-19 infections?