classification articles

Is astronomy a hard or soft science?

The designation of a scientific field as either "hard" or "soft" often sparks more debate among academics and the public...

How does NASA classify planets?

The standard for classifying a planet within our Solar System is a specific set of rules established by the Internationa...

What is the order of classification of stars from hottest to coldest?

The way astronomers sort the billions of stars visible in the night sky relies fundamentally on one key physical propert...