Pre-launch processing of the cargo transportation spacecraft Progress MS-12 at the Baikonur launch site continues.

On July 1, 2019, specialists from RSC Energia and space center Yuzhny successfully completed leak tests of the spacecraft systems and compartments in vacuum chamber using a helium-air mixture.

Leak tests of space hardware in vacuum chamber using a helium-air mixture inside the volumes that are being checked currently remains the most objective inspection method on the ground.

The launch of cargo transportation spacecraft Progress MS-12 is scheduled for July 31, 2019 from the Baikonur launch site.