Delta IV rocket launches without a hitch from Cape Canaveral

The world's largest and most powerful rocket lifted off into space from Cape Canaveral Saturday afternoon after the launch was scrubbed on Thursday due to weather. 

The United Launch Alliance launched the Delta IV heavy rocket carrying the NROL-37 satellite with a classified payload for the U.S. National Reconnaissance Office.

The launch went off without a hitch at 1:51 p.m.