Video: Weather causes Atlas 5 countdown hold

Narrated animation explains the United Launch Alliance Delta 4-Heavy rocket ascending to space with the NROL-37 mission for the National Reconnaissance Office through T+plus 6 minutes, 30 seconds before going into a news blackout.

Watch a replay of the launch of an Atlas 5 rocket carrying the $1.2 billion SBIRS GEO Flight 4 satellite into orbit.

A new-generation weather satellite launched in November promising to deliver better images of hurricanes, storms and clouds than any mission before has returned its first tantalizing pictures from geostationary orbit.