A robotic Russian cargo ship arrived at the International Space Station early Friday (Feb. 24) to deliver nearly 3 tons of supplies to the orbiting laboratory.
The automated Progress 66 supply ship docked at the space station at 3:30 a.m. EST (0830 GMT), parking itself at the station's Russian-built Pirs docking module. It is the second cargo ship to arrive at the station in as many days after a SpaceX Dragon capsule made its own delivery of 5,500 lbs. of supplies on Thursday.
Russia's space agency Roscosmos launched Progress 66 into orbit Wednesday (Feb. 22) using a Soyuz rocket that lifted off from Baikonur Cosmodrome in Kazakhstan. It was Russia's first cargo delivery to the space station since the loss of the Progress 65 supply ship on Dec. 1, 2016.
Russia's Progress vehicles and SpaceX's Dragon capsules are part of a fleet of robotic spacecraft that deliver vital supplies to the International Space Station. Cygnus spacecraft built by Orbital ATK and Japanese H-2 Transfer Vehicles round out the current fleet.