350K views · 8K reactions |  350 years ago today on 22 June 1675, a...

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

236 reactions · 73 shares | Enjoy learning about space and astronomy? Visit the Royal Observatory in Greenwich and tour the universe at London's only Planetarium. | Royal Museums Greenwich | Facebook

19K views · 122 reactions | Visit the Royal Observatory and straddle the eastern and western hemispheres of the globe | Royal Museums Greenwich | Facebook

39K views · 500 reactions | Learn how John Harrison became a world-famous clock maker who helped to solve the problem of finding longitude at sea with the H4 pocket watch. | Royal Museums Greenwich | Facebook

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...