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Marvel at the Milky Way under some of the UK’s darkest skies on tiny St. Martin’s, Isles of Scilly. Immerse yourself in astronomy as you enjoy nightly stargazing, talks and guided observation, hosted by the islands’ community observatory. Experience the wonder of true darkness in Scilly’s unpolluted night sky, as you join the small team of islanders to learn more about our vast universe.

Whether you're an experienced astronomer or a curious beginner, Scilly Dark Skies Week offers a unique opportunity to explore our pristine night sky. Spend the week immersed in stargazing, enhancing your observational skills, learning to identify constellations, and diving into astrophotography. Whether you’re an expert with your own telescope or simply looking to try something new during your visit to St. Martin’s, there will be something for everyone.

For the full programme of events please visit the COSMOS website.

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Event Dates & Times

Scilly Dark Skies Week (5 Oct 2025 - 10 Oct 2025)

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St. Martin's Observatory, St. Martin's, Isles of Scilly

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