After years of efforts, countries decided where exactly the Prime Meridian and the equator would cross each other.

At the exact spot where the equator crosses the prime meridian—a remote point in the Gulf of Guinea—a fascinating intersection of data error and climate science unfolds. Commonly referred to as Null ...

On a hot day in Ghana, a visit to the spot where 0 degrees longitude meets the Equator. By Emefa Addo Agawu I slept poorly the night before we went to the center of the world. Three a.m. found me wide ...

Greenwich in London is home to the Prime Meridian, but just visiting the world-famous Royal Observatory won’t actually make you cross from one hemisphere to the other. That’s because the actual zero ...