When an exoplanet is discovered, scientists are quick to describe it and explain its properties. Now, we know of thousands of them, many of which are members of a planetary system, like the well-known ...

With the Paris 2024 Paralympics well under way, we take a look at how the classification system works in para-sport – and how are athletes’ classifications defined? The idea behind classifications is ...

A new classification system of rare lung diseases in infants is improving diagnosis and treatment. The system clears up considerable confusion about how to classify and treat diseases that are rarely ...