End of an era as final Delta IV Heavy closes out 63 years of launches

The Delta family of rockets have been responsible for launching Mars rovers, space telescopes, solar probes, weather satellites and more during a 63-year-run that began when Dwight D. Eisenhower was president.

It has one more to go as United Launch Alliance aims to send up the final Delta IV Heavy rocket on the NROL-70 mission for the National Reconnaissance Office from Cape Canaveral Space Force Station’s Space Launch Complex 37 at 1:40 p.m. Thursday.

Space Launch Delta 45’s weather...