Space Shuttle Independence, seen here mounted on Shuttle Carrier Aircraft N905NA, is not a real Shuttle, but a very accurate full-scale replica. It was constructed in the early 1990s and placed on display at the Kennedy Space Center in 1993, then named "Explorer". In late May 2012 it was transported by barge to Houston, where it arrived on June 1st. Explorer was placed on display at the Space Center Houston on poles, and in October 2013 it was renamed "Independence". On 14 August 2014 the replica Shuttle was placed on top of Shuttle Carrier Aircraft N905NA, which had arrived at the Space Center Houston in late April 2014.