On Oct. 2, 2015, the United Launch Alliance released its 100th rocket! The United Launch Alliance (ULA) is a personal spaceflight business that was born in 2006 as a joint venture in between Lockheed Martin and Boeing. An Atlas V 421 rocket released the Morelos-3 objective for Mexicos Secretaria de Comunicaciones y Transportes (Ministry of Communications and Transportation) on Oct. 2, 2015, from Cape Canaveral Air Force Station, Florida. (Image credit: United Launch Alliance) For its 100th objective, ULA launched a Mexican communication satellite called Morelos-3 on an Atlas V rocket. This wasnt simply the 100th effective objective for ULA, but it was also the companys 100th attempt to launch a rocket. ULA thus continued its 100 percent launch success rate.Catch up on our entire “On This Day In Space” series on YouTube with this playlist. On This Day in Space Archive! Still insufficient area? Dont forget to check out our Space Image of the Day, and on the weekends our Best Space Photos and Top Space News Stories of the week. Email Hanneke Weitering at [email protected] or follow her @hannekescience. Follow us @Spacedotcom and on Facebook..