The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

"A parade of planets, also sometimes referred to as a planetary alignment, is when several planets in our solar system appear ...

A planetary alignment, or a "planet parade" according to the internet, will grace our night sky just after dusk, according to SkyatNightMagazine. We'll see six planets in the first part of February – ...

Astronomers have made a groundbreaking discovery in the WASP-132 system, finding two new planets that defy previous ...

This may explain the strange properties of the orbits of our solar system's planets, which are not quite perfectly circular, and all lie on slightly different planes. NASA artist’s conception of ...

A planet-size object that possibly once visited the solar system may have permanently changed our cosmic neighborhood by warping the orbits of the four outer planets, a new study suggests. The ...