NASA has selected Maxar Technologies for a $375 million contract to design, build and launch the core element of a mini-space station in orbit around the moon that will double as a deep space research outpost and a staging point for future human expeditions to the lunar surface.

This photo gallery shows the U.S. Navy’s Mobile User Objective System communications satellite No. 4 being encapsulated in the United Launch Alliance Atlas 5 rocket’s payload fairing for the planned Aug. 31 liftoff.

Russia’s Proton rocket took off on its first launch of the year Sunday with a commercial satellite to expand Inmarsat’s next-generation mobile communications network. Liftoff occurred at 1231 GMT (7:31 a.m. EST), and it took more than 15 hours to place the Inmarsat spacecraft in the correct orbit.