Russia launches Progress freighter to ISS
Using its Soyuz-2 rocket, Russia today successfully launched a Progress freighter to ISS, carrying more than 5,000 pounds of cargo.
The freighter is scheduled to dock with ISS Friday evening at 9:34 pm (Eastern). It will dock with the port on the 20-year-old Zvezda module, which has remained unused for the past six months because of concerns that the docking and undocking at the port was causing stress fractures in the sections of Zvezda closest to the port. The Russians have decided to do this docking for the express purpose of studying its impact on the module.
The Progress MS-18 spacecraft will link up with the rear docking port on Zvezda. With the help of cosmonauts on the station, Russian engineers have traced a small air leak on the station to the transfer compartment leading to Zvezda’s rear port. The compartment has been sealed from the rest of the space station since the departure of a previous Progress spacecraft from the rear docking port in April. But cosmonauts will re-open the compartment to unload cargo delivered by the Progress MS-18 spacecraft.
The leaders in the 2021 launch race:
38 China
23 SpaceX
18 Russia
4 Northrop Grumman
4 ULA
4 Arianespace (Europe)
China remains ahead of the U.S. 38 to 36 in the national rankings.
Using its Soyuz-2 rocket, Russia today successfully launched a Progress freighter to ISS, carrying more than 5,000 pounds of cargo.
The freighter is scheduled to dock with ISS Friday evening at 9:34 pm (Eastern). It will dock with the port on the 20-year-old Zvezda module, which has remained unused for the past six months because of concerns that the docking and undocking at the port was causing stress fractures in the sections of Zvezda closest to the port. The Russians have decided to do this docking for the express purpose of studying its impact on the module.
The Progress MS-18 spacecraft will link up with the rear docking port on Zvezda. With the help of cosmonauts on the station, Russian engineers have traced a small air leak on the station to the transfer compartment leading to Zvezda’s rear port. The compartment has been sealed from the rest of the space station since the departure of a previous Progress spacecraft from the rear docking port in April. But cosmonauts will re-open the compartment to unload cargo delivered by the Progress MS-18 spacecraft.
The leaders in the 2021 launch race:
38 China
23 SpaceX
18 Russia
4 Northrop Grumman
4 ULA
4 Arianespace (Europe)
China remains ahead of the U.S. 38 to 36 in the national rankings.