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 ...

So much is happening in astronomy these days that it’s hard to keep track of the cosmic zoo, much less how each object fits into the overall celestial landscape. Scientists typically organize their ...

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 ...