This paper presents one analytical tidal theory for a viscoelastic multi-layered body with an arbitrary number of homogeneous layers. Starting with the static equilibrium figure, modified to include ...

Have you ever wondered why we only see one side of the moon when we look at it from Earth? We would expect to see the other side of the moon because it is a rotating sphere, but this is not the case.

Mercury might once have orbited the sun in a “synchronous” rotation, before being hit by a large asteroid that flicked the rocky planet into a strange orbit. A synchronous orbit is one in which a body ...