From the scorching surface of Mercury to the icy edges of Neptune, our planetary neighborhood is full of wonders. The order of the planets isn’t just trivia—it tells a story about temperature, ...

The order of the planets ranges in distance from the sun starting with the nearest planet to the sun and working outward. If you want to keep track of the order, there is a simple trick for ...

Are planets in the solar system that are closer to the Sun older than the ones further away? – Gavriel, age 10, Paducah, Kentucky ...

So why do planets get such terrible names? The short answer is that, like most other newly-discovered astronomical objects, their names follow set conventions, laid out by the International ...

As more planets are discovered beyond our solar system, they all need names. But they usually end up with several, leading to a jumbled mess.

The International Astronomical Union (IAU) has decided that Pluto — and other dwarf planets in the Solar System that share similar characteristics — should now be sub-classified as “plutoids”. The ...

The morning sky boasts the two brightest planets. Jupiter rises soon after midnight and is well up in the south-southeast sky ...

Are planets in the solar system that are closer to the Sun older than the ones further away? – Gavriel, age 10, Paducah, Kentucky ...