👑 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

The Royal Observatory in Greenwich is the historic home of British astronomy, Greenwich Mean Time and the world-famous Meridian Line. Established in the 17th century, it was from here that the great scientists of the time precisely mapped the stars to help navigate at sea. Today, you can stand aside the Meridian Line with one foot in the eastern hemisphere and one in the west and marvel at the Great Equatorial Telescope, one of the world’s largest historic telescopes before strolling through Gre

Enjoy learning about space and astronomy? Visit the Royal Observatory in Greenwich and tour the universe at London's only Planetarium. | Royal Museums Greenwich

Visit the Royal Observatory and straddle the eastern and western hemispheres of the globe | Royal Museums Greenwich

47 reactions · 4 comments | What's your favourite thing about this season? The leaves are red and crunchy, the air is crisp and Greenwich Park is never more beautiful than at this time of year... https://bit.ly/royal-observatory ⌚Head to the Royal Observatory for the perfect Autumn day out. Stand on the Prime Meridian Line, see technology that changed the world and watch a Planetarium show at the home of Greenwich Mean Time. | Royal Museums Greenwich | Facebook

3.9K views · 173 reactions | ️ British Science Week kicked off...