In order to keep time accurately, we have always had to set our clocks by the ticks of a better one. Until the 1950s, the best were those set by astronomers based on the position of the sun in the sky ...

Although today the Royal Observatory Greenwich, in south-east London, is an excellent museum, for almost 300 years the site was a centre for astronomical and navigational observations and research.

The Royal Observatory Greenwich was first built in Greenwich, London, in 1675. At this original location, the observatory was set up with the goal of producing star charts and accurate time ...

The Royal Observatory Greenwich is livestreaming the solar eclipse from London, U.K. Royal Observatory astronomer Greg Brown will be explaining the science of the sun and solar eclipses during the ...

Since an international conference in 1884, the world’s time zones have been measured from a line at the Royal Observatory. GMT means Greenwich Mean Time, and putting one foot either side of the ...

The Royal Observatory Greenwich is the home of Greenwich Mean Time and the Prime Meridian of the World. It is also home to London's only planetarium, the Harrison timekeepers and the UK's largest ...

Laura French Sitting southeast of central London, Greenwich is a great daytrip within city limits and well worth the trek. Greenwich's claim to fame is undoubtedly the Royal Observatory ...

In the Royal Greenwich Observatory Archives at Cambridge University Library, one man's papers take up a staggering 110 meters ...

The Royal Observatory Greenwich was first built in Greenwich, London, in 1675. At this original location, the observatory was set up with the goal of producing star charts and accurate time ...