Every year on March 14 the world celebrates the beauty of maths. That's because when you write the date the American way — with the month coming first — you get 3/14. And 3, 1, and 4 are the first three digits of $\pi$, one of the most important numbers in maths.

Mathematics is incredibly important to our lives, but it still often hides in the wings. This is why we're extremely pleased that on Monday, 20 early career mathematicians got to present their work to politicians in Parliament, via the STEM for BRITAIN competition. This annual event invites researchers in maths, engineering, the biological and biomedical sciences, chemistry, and physics to submit posters explaining their work.

To celebrate this year's International Women's Day on March 8, 2022, we revisit some of the articles and podcasts we have produced with female mathematicians over the last year. We've really enjoyed learning about these women's fascinating work and we hope that you will too!

From logic to cosmology

Maths is beautiful in its own right but it also has applications in all of the sciences and beyond. Here's a collection of topics we have explored over the last year with a range of contributors from different fields.

Over 50 years ago the rocks collected by Apollo 11 astronauts changed how we thought about the Moon. The same type of rocks, called anorthosites, that have formed through the crystallisation of magma, can be found on Earth. These lunar rocks suggested the theory, now widely accepted, that the Moon was formed in a collision between the proto-Earth and another proto-planet with the huge energy of this impact resulting in hot magma oceans on both the Earth and the Moon.

UK Schools have received more than 300,000 CO₂ monitors as part of a government initiative that has received significant input from mathematicians though the project CO-TRACE.