Essential Information
| Type | Experiences |
|---|---|
| Location | |
| Date and Times | Saturdays and Sundays |
| Prices | Included with Royal Observatory admission |
| Free entry for Members. Not a member? Join now |
Get hands-on with a telescope, explore the surface of Mars, try your hand at using a sextant and see the invisible at the Royal Observatory Greenwich with our weekend interactive Observatory Unlocked sessions.
Every weekend our space-tastic team of Observatory Explainers will be around the site, delivering live science demonstrations and astronomy sessions for all ages.
All activities are included with entry to the Royal Observatory, and you can drop in any time to sessions that are running. Check out the highlights below for a taste of what's on offer.
Whether you're searching for answers about life in the Universe or are just curious about what it's like to look through a telescope, head for the Royal Observatory.
- Sessions typically run on Saturdays and Sundays between 11am and 2.30pm.
- Activities will vary depending on weather, time of year and availability - see below for what's currently on offer.
- Suitable for all ages unless specified.
- All activities are free with entry to the Royal Observatory.
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Learn about telescopes
Step inside the iconic Great Equatorial Telescope dome and join our Observatory Explainers for a hands-on session all about telescopes!
Explore how magnification works through live demonstrations, and see how the Great Equatorial Telescope compares to other telescopes around the world.
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Experiment with historic tools and technology
Enjoy drop-in activities led by volunteers at the Royal Observatory. Learn more about the iconic Time Ball and the history of the Royal Observatory, or take part in exciting demos showing how a compass or a camera obscura works. For exact timings, listen out for announcements on the day.
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