A woman buried more than 2,400 years ago in what’s now northwestern China has galloped into a scientific afterlife atop the earliest directly dated horseback riding saddle. Researchers have ...

Losing someone dear at any age can present a challenge that greatly influences the path one takes in life. When I was five years old, I received the devastating news that my father passed away ...

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, ...