Later in 1831, the Greenwich Time Bell was installed on the roof of the house, after the observatory tested chronometers used by the Royal Navy. Later in 2007, the modern Peter Harrison ...

To fix this the Royal Observatory decided to set a standard time that everyone could set clocks to. This was called Greenwich Mean time(GMT). GMT became the only official time used in the UK ...

In 1884, an international conference decided that the Prime Meridian, which runs through Greenwich, would be the starting point for timekeeping. The line runs through the Royal Observatory ...

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 ...

taken over three years or more : this change is fully in accord with the experience gained in the cloudier weather (but better seeing) at Greenwich.

"Whatever was in there, issued by the Royal Observatory Greenwich, 19 September 1917," Mark read from the label inside the box. "The box used to contain a deck watch used for naval navigation ...

Get starry-eyed at this exploration of the universe at the Royal Observatory in Greenwich’s planetarium. Watch ‘The Sky Tonight Live’, presented by an astronomer, to find out what is in the ...

Families looking for a fun and educational half-term activity can visit the Greenwich Planetarium, where a variety of exciting shows will be running throughout the school holidays. Part of the ...

But Jake Foster, a public astronomy officer at the Royal Observatory Greenwich, has a few ideas ... on the scene is the 8.4-metre telescope inside the Vera C Rubin Observatory in Chile, set ...