Astronomers—who study the positions and motions of the planets—call it retrograde motion and regard it as an inevitable consequence of how the planets move. The observation that planets ...

Opinions expressed by Forbes Contributors are their own. Eric Mack is a reporter covering science, sustainability and space. Has life seemed a little more chaotic than lately the past few weeks?

#module:31675090## When Mars retrograde sets in, its assets are often held back, meaning the notion of impulsiveness and spontaneity are delayed. The effects of the motion paradoxically require ...

With the advent of modern astronomy, we've discovered that the ... to its orbit around the Sun (a phenomenon known as retrograde motion). On the other hand, Uranus not only rotates in a westward ...