Receive emails about upcoming NOVA programs and related content, as well as featured reporting about current events through a science lens. The Prime Meridian was set in 1884 using the large Transit ...

If you use your smartphone’s GPS to find Earth’s prime meridian – the north-south line marking zero degrees longitude – at Greenwich Observatory, you’ll notice something a bit odd. You won’t be ...

June 22 marks the 350th anniversary of the Royal Observatory Greenwich, the home of the historic Prime Meridian that is considered by many to be the birthplace of modern astronomy. To celebrate, we're ...

Derby could have been the line of longitude from which all calculations have been taken. Read more in the latest instalment ...

Sir Harold Spencer Jones and R. T. Cullen (Mon. Not. Roy. Astro. Soc., 104, 3; 1944) describe the principal features of, and preliminary results of tests and observations with, the new reversible ...

A new Bremont timepiece includes a piece of history from Royal Observatory Greenwich. By Rachel Felder To create its newest watch, the English company Bremont acquired metal from an unlikely source: ...