* Astronomy

The M25 motorway, or London Orbital, is a 188 km orbital motorway that almost encircles Greater London, England, in the United Kingdom.
The road enjoyed a positive reputation among ravers in the late 1980s as the then new Orbital Motorway was a popular route to the parties that took place around the outskirts of London. The use of the M25 for these raves inspired the name of electronic duo Orbital.
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