👑 350 years ago today on 22 June 1675, a royal warrant from Charles II ordered the building of the Royal Observatory in Greenwich. 👑 He had been persuaded by leading scientists that building an observatory would bring Britain closer to working out how to determine longitude at sea - a breakthrough that would boost the country's trade prospects by making global navigation easier, safer and more efficient. 👑 Over the next three and a half centuries, numerous scientific discoveries and advanceme

🕰️ British Science Week kicked off yesterday, and with this year’s theme being ‘Time’, where better to get involved than the home of Greenwich Mean Time - the Royal Observatory? We’ve got an exciting array of events happening themed around time from now until 17 March including workshops, talks, tours, craft sessions and more. 🔴 To celebrate this exciting week in STEM, we’re taking a closer look at the striking red time ball on top of the Royal Observatory’s Flamsteed House. Our Curator of Tim

🏅2025 marks the 350th anniversary of the Royal Observatory, Greenwich. 🏅Historic home to Greenwich Mean Time and the Prime Meridian of the World, the Royal Observatory is one of the most important scientific sites in the world. 🏅We're proud to share that @royalmintuk are marking this historic anniversary with a beautiful new UK £2 coin! 🏅The coin pays tribute to the Royal Observatory with a reverse design that features the Shepherd Gate Clock, the constellation Ursa Minor, the star Polaris a