Pluto and the Dwarf Planets

Path closures around the Royal Observatory

The path in front of the Royal Observatory is currently closed as part of a project to restore Greenwich Park's 17th-century landscape. Please leave extra time to arrive at the Observatory if you are attending an event. We recommend taking the main avenue through the Park for step-free access or arriving via Blackheath Gate, see this map for more details.

Essential Information

Location	Royal Observatory
Key Stage	Key Stage 2, Key Stage 3
School Subject	Astronomy, Science
Resource Type	Video

In 2006 Pluto was reclassified as a dwarf planet, but have you ever wondered why?

Join the Royal Observatory Greenwich astronomers as they explore the story of Pluto and the Dwarf Planets!