She has already been on a number of adventures, from her first arrival in Portsmouth through to her deployment to the east coast of the U.S, through to becoming the fleet flagship and finally departing on her maiden operational deployment.
Here are pictures of the aircraft carrier over the years.
5. HMS Queen Elizabeth is assembled
Workers at Babcock's, Rosyth shipyard, in Scotland, work to assemble the separate pieces of HMS Queen Elizabeth together in December 2012. Picture: Allan Hutchings (123920-279) Photo: Allan Hutchings
6. HMS Queen Elizabeth put together piece by piece
Ship builders in Rosyth worked to put together the separate pieces of HMS Queen Elizabeth which had been built across the country, including in her future home Portsmouth. Picture: Allan Hutchings (123920-260) Photo: Allan Hutchings
7. HMS Queen Elizabeth takes shape
Tom Gifford at the front HMS Queen Elizabeth in December 2012 - when the future Royal Navy flagship was starting to take shape. Picture: Allan Hutchings (123920-409) Photo: Allan Hutchings
8. HMS Queen Elizabeth's construction continues
Construction work continues on HMS Queen Elizabeth at the dry dock in Rosyth, Scotland. Picture: Ken Whitcombe Photo: Ken Whitcombe