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 ...

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 ...

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 ...

We spoke to the Astronomy Education Officer at the Royal Observatory Greenwich, Jessica Lee, to find out what you can see this month in the night sky from London. Celebrating its 350th anniversary ...

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 ...

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 ...