We celebrate the most famous of mathematical constants with a circle puzzle.
We're celebrating the occasion with some favourite talks by female mathematicians of the last year.
Physicists have finally detected the gravitational waves they have been chasing for nearly 100 years.
Prime number enthusiasts discover new largest prime with 22,338,618 digits.
Rumours abound that physicists have detected gravitational waves produced by the merger of two black holes.
Play a game to while away those last 24 hours before Christmas.
Fold and cut a fantastic fractal Christmas tree!