Space artists can sometimes stretch scientific data for a bigger visual bang. At New York's natural history museum, they ...

An accidental discovery in an astronomy show offers researchers a new clue about the mysterious Oort Cloud, a large expanse ...

For centuries, astronomers have sought to understand the formation and evolution of the solar system and the dynamics that ...

How big it is: 865,000 miles (1.392 million kilometers) across How far away it is: 93 million miles (150 million km) What ...

Today, it’s believed that Jupiter and Saturn, the largest planets, were the first to fully form, both within a few million ...

Not all planets are lucky enough to orbit a star. Some are cast adrift into the cold, dark depths of space completely alone. These mysterious objects are known as rogue planets, and they challenge ...

It’s kind of a freak accident that it actually happened,” said David Nesvorny with the Southwest Research Institute.

Learn how a possible ninth planet, the theoretical Planet X, could have acquired its wide orbit in the outer Solar System - a process that's also applicable for other planets.

Scientists have unlocked one of the solar system’s many secrets from an unexpected source: a planetarium show that opened to ...

James Webb Space Telescope discovers most distant galaxy MoM-z14 ... which is the smallest of the solar system's five recognized dwarf planets and has a diameter of about 590 miles (950 km).

As we travel around the galaxy, we might encounter stars ... Sun makes it is the statistically closest planet to any other world in the Solar System. Not a good thing since the probability ...