Almost 20 years after Pluto was infamously downgraded from its status as a planet, scientists now believe they have discovered a new planet in our solar system. advertisement.

Though Pluto has formally been considered a dwarf planet for almost two decades, it still has many lessons left for planetary scientists — including hints about how the solar system formed.

Pluto is 100 miles smaller than the smallest planet but is not a major planet. Here's which planet in our solar system takes the title instead.

The sun's influence reaches much further out into space than the eight planets that orbit around it. Beyond Neptune, the solar system stretches out to around 100 astronomical units (AU), which is ...

Learn about the Solar System with these interactive learning resources for KS2 Science students aged 7-11 from BBC Bitesize.