When you think of a planet, you probably think of one of the planets in our own solar system, like Earth, Jupiter, or Mars. Most of the exoplanets we’ve discovered have been like those in our solar ...

JWST's stunning image of NGC 346 shows that planets in the early universe didn’t form as quickly as theorists thought.

American scientists believe they have discovered a new dwarf planet at the edge of the solar system. Named OF201, this object ...

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

How can fission-powered propulsion help advance deep space exploration, specifically to the outer planets like Jupiter, ...