During the Mars Perseverance engineering and technology overview on Feb. 16, 2021, chief engineer Adam Steltzner displays a rover wheel.
Russia's Progress 77 resupply ship approaches the station.
Russia's Progress 77 resupply ship approaches the station.
Russia's Progress 77 resupply ship approaches the station.
Russia's Progress 77 resupply ship docks to the station.
Russia's Progress 77 resupply ship approaches the station.
This oblique view of Mount Ararat in eastern Turkey was taken from the International Space Station.
An icy, snow-covered northeast Moscow is pictured from the International Space Station.
Lake Onega in Russia is pictured from the International Space Station.
The ice-covered Lake Pleshcheyevo with the town of Pereslavl-Zalessky on its coast.
