Welcome to Plus magazine!

Maths in a minute: Einstein's general theory of relativity

What would happen if the Sun exploded?

Calculating the multiverse

If there's a multiverse, then how many of its component universes are like our own? Fred Adams has made some calculations.

Have you heard? The maths of rumour spreading

Mathematical models predict how fast a rumour will spread and how many people it's likely to reach.

Political tides

Politician Douglas Carswell has been arguing with scientists about what causes the tides. We've figured out who's right.

Blood, oil and water

Sara Zahedi has won a prestigious prize at the European Congress of Maths. Your future medical diagnoses, and even the welfare of sea life, may depend on her work.

Primes without 7s

James Maynard, one of the prize winners at the European Congress of Mathematics, is counting primes that don't have 7s in them. But why?

What's happening and who's listening?

Why are physicists unsure about what it means to say that something has happened? Anthony Aguirre and Sean Carroll explain.

Magic 19

Number the dots so that each line of three adds up to 22.