For 350 years the Royal Observatory has been a place where people come together to explore the universe.
Generations of astronomers spent countless nights looking up at the night sky, mapping the stars and measuring time. Their efforts gave us the Prime Meridian and Greenwich Mean Time (GMT), helping us find our place in the world.
But the story doesn’t end there.
It's time to discover the next exciting chapter in the Royal Observatory's history; an exciting transformation project called First Light.
First Light: bringing the wonders of the Universe to Greenwich
We have started a landmark capital project to transform the Royal Observatory and make science and astronomy accessible to everyone.
The project, known as First Light, will bring the story of this historic site to life, and give everyone the chance to experience the wonders of space and time for themselves.
Inspiring galleries and displays, innovative architecture, sensitive conservation and improved access will all help unlock the Royal Observatory's full potential.
Why is the project called 'First Light'?
The First Light project is named after the moment a telescope is first used to view and record the night’s sky. A telescope’s ‘first light’ is anticipated throughout its construction and is hopeful of future scientific discoveries.
This is your chance to be part of the Royal Observatory's story. Help protect a unique heritage site, and get ready to see the universe in a whole new light.
Impact for visitors
The First Light project began in autumn 2025; the work is due to be complete by spring 2028.
During construction there will be phased closures, beginning with the south side of the site: check confirmed closures here.
The rest of the Royal Observatory is open until 2 November 2026, so plan your visit now to see the world-famous Prime Meridian line, historic Flamsteed House and Luke Jerram's new artwork Mirror Moon.
From November the site will close temporarily but you'll soon be able to experience one of our most iconic highlights again. The Meridian Courtyard will re-open in Summer 2027, with tickets going on sale in January.
There are plenty of other ways to explore space and astronomy at Royal Museums Greenwich. Meet our astronomers at Astronomers Take Over or see the world's greatest space photography at the ZWO Astronomy Photographer of the Year exhibition, both at the National Maritime Museum.
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More ways to get involved
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