The U.S. Air Force’s fifth Advanced Extremely High Frequency satellite, designed for secure, jam-resistant communications, is set for launch aboard a United Launch Alliance Atlas 5 rocket. These photos show the AEHF 5 satellite during encapsulation inside the Atlas 5’s payload shroud.

The next-to-last Delta 2 rocket is being stacked at its California launch site to take flight in January to put a civilian weather satellite into polar orbit.

A nuclear blast detection satellite and an assortment of experiments will be boosted directly into geosynchronous orbit 22,300 miles above Earth in 2019 by the most-powerful version of United Launch Alliance’s Atlas 5 rocket, the Air Force has decided.