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 ...

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 ...

In 1884, a delegation of international representatives convened in Washington, D.C. to recommend that Earth's prime meridian (the north-south line marking zero degrees longitude) should pass through ...

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 ...

The prime meridian has shifted a few hundred feet. An astronomer helped figure out why. In 1884, a delegation of international representatives convened in Washington, D.C. to recommend that Earth's ...

Scientists have explained why the Greenwich Meridian appears to have drifted substantially east (or to the right, if you stand in the park and face north). Now the big question is: should the marker, ...

Recently there has been an unusual amount of interest in expanding U.S. territory. A better idea: why not go REALLY BIG and relocate the Prime Meridian from Greenwich, England, to Saint Paul, ...