When it comes to uniform circular motion, position is the most obvious quality: There's an object, and it's on a circular path. But velocity is a little less intuitive.

Learn the key differences between centripetal and centrifugal forces, their real-world applications in physics, and how they shape our understanding of circular motion.

Professor Kokichi Sugihara uses his background in mathematical engineering to create mind-bending 3D objects that change shape based on how you look at them.

Astronomers have spotted strange circular objects, deep in space, through telescopes. The objects "do not seem to correspond to any known type of object", report the scientists who find them, ...