Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

To this day, Stonehenge remains a historical landmark that we continue to learn more about, especially with the discovery of a 5,000-year-old cow tooth, which could provide insight into its origins.

Ask people how Stonehenge was built and you’ll hear stories of sledges, ropes, boats and sheer human determination to haul stones from across Britain to Salisbury Plain, in south-west England. Others ...