US rocket launches carrying secret satellite
{{#rendered}} {{/rendered}}June 29, 2012: A ULA Delta 4 Heavy Rocket launches the NROL-15 spy satellite from Cape Canaveral, Fla.
A new U.S. clandestine satellite has rocketed into space.
An unmanned Delta IV-Heavy rocket lifted off Friday morning from Cape Canaveral, Florida. It carried a satellite for the National Reconnaissance Office.
The office is keeping quiet about the satellite's purpose.
{{#rendered}} {{/rendered}}This was the second rocket launch for the NRO in the last two weeks. An Atlas V rocket carrying another secret satellite was launched June 20.
Friday's launch was delayed a day because of concerns about weather conditions caused by Tropical Storm Debby earlier in the week. The launch was delayed three hours for several technical issues with a sticky valve.