For decades, astronomers have classified exoplanets into neat categories: rocky Earth-like planets, gas giants like Jupiter, ...

A distant exoplanet discovered, named Enaiposha, is unlike anything found in our own solar system, similar to a "super-Venus" ...

But on Neptune and Uranus, as Voyager 2 discovered, no such dipole exists, leading to speculation that the planets inner layers were unable to move and mix like they do on Earth and other planets ...

You can expect to see seven planets align Friday when Mercury joins Mars, Jupiter, Uranus, Neptune, Venus and Saturn. But not all of them will be easy to see, especially with the naked eye.

But with the retrograde, all of that is set to change. “When Neptune goes into retrograde, it’s a time to peel back the layers of reality and look within,” says Andrews. “Neptune ...