Two Russian cosmonauts and a NASA astronaut return to Earth after eight months in orbit

Eight months of mission conclude with a landing in Kazakhstan

Two Russian cosmonauts and a NASA astronaut returned to Earth on Sunday, July 26, 2026, after eight months in orbit aboard the International Space Station (ISS). The Soyuz spacecraft that carried them descended in the steppes of Kazakhstan, the usual landing site for Russian crewed missions since the Soviet era.

The mission, which lasted a total of 241 days, included a spacewalk and thousands of orbits around Earth. These extended stays are crucial for scientists from both space agencies to study the effects of microgravity on the human body, knowledge increasingly relevant for future exploration missions beyond low Earth orbit, including potential crewed trips to the Moon and Mars.

Space cooperation that withstands geopolitical tensions

The collaboration between the Russian space agency Roscosmos and the US NASA on the ISS has continued despite severe diplomatic tensions between Washington and Moscow stemming from the war in Ukraine. Since the conflict began in 2022, the joint operation of the orbital station has remained one of the few areas of uninterrupted technical cooperation between the two countries, even as other areas of bilateral relations have been severely affected by sanctions and political confrontation.

After landing, the crew was transferred to undergo standard medical checkups, routine after long stays in microgravity. These screenings include cardiovascular, bone and muscle assessments, designed to measure the impact of prolonged weightlessness on the body and monitor the readaptation process to Earth’s gravity, which can take several weeks.

The ISS, operational since 2000 thanks to a partnership among several international space agencies, remains a key laboratory for scientific research in orbit. Each crew rotation provides new data on physical endurance, mental health and human behavior in space, information indispensable as the world’s space agencies advance toward increasingly longer and more ambitious missions beyond Earth’s orbit.