Where does space begin?

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 3, Key Stage 4, Post-16
School Subject	Astronomy, Science
Resource Type	Video

Have you ever wondered how far away space is; how far are the different things you see above your head?

Join the Royal Observatory Greenwich astronomers as they ascend up through the different layers of the Earth’s atmosphere to reveal what we would see at different heights.