How a year in orbit helps prepare humanity for Mars

One Year Space Station Crew Receives a Warm Welcome in Star City, Russia · 19:53 · Video: NASA · Watch at the source

In short: After 340 days in weightlessness, Commander Scott Kelly and his crew return to Earth to share vital lessons on surviving long-duration spaceflight.

Footage shows the customary arrival rituals held within Russia's Star City at the Gagarin Cosmonaut Training Centre. Following their landing in Kazakhstan via the Soyuz TMA-18M, the crew—including NASA's Scott Kelly and Roscosmos cosmonauts Sergey Volkov and Mikhail Kornienko—honored Yuri Gagarin with a floral tribute and joined a procession to the House of Cosmonauts.

The mission's true significance lies in the biomedical data collected during Kelly and Kornienko's 340-day stay in space. Launched in March 2015, their study of the effects of weightlessness on the human body provides the essential foundation for planning future human missions to Mars.

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