19 November 2010:
The Minotaur IV consists of the first three stages of an LGM-118 Peacekeeper ICBM and a new fourth stage. The Minotaur family of launch vehicles was developed by Orbital Sciences Corporation from Minuteman II and Peacekeeper missiles. A 5-stage Minotaur V is currently being developed. It will be used to launch NASA’s Lunar Atmosphere and Dust Environment Explorer (LADEE) mission in 2012.