Where is the original "Stephenson's Rocket" normally on display?

What remains of the original "Rocket" are normally on display at the Science Museum in Kensington, London, United Kingdom (UK), although it is occasionally loaned to other sites.

In 1829, the Liverpool and Manchester Railway ran a competition to determine which type of motive power it would use for its trains. This competition ended up being called the Rainhill Trials. The famous railway engineer, George Stephenson, had been the engineer responsible for the construction of the line, and quite likely had some input into the design of "Rocket", but history has recorded that honour to George's son Robert, the locomotive being built at his Newcastle works.

Five competitors took part in the Rainhill Trials, with "Rocket" the only one to complete all parts successfully, and Steam Traction was chosen for the operation of the line. A replica of "Rocket" is on display at the National Railway Museum, in York, UK.