A Soviet cosmonaut left Earth for a routine mission, spent 311 days stranded on the Mir station, and returned as the "last citizen" of a country that had already disappeared.

A Soviet cosmonaut left Earth for a routine mission, spent 311 days stranded on the Mir station, and returned as the “last citizen” of a country that had already disappeared.

Written by Viviane Alves

Published on 20/05/2026 at 14:31

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Sergei Krikalev launched in 1991, witnessed the collapse of the Soviet Union in orbit, and returned in March 1992 as a symbol of Russian space transition

A space mission that began on May 19, 1991 went down in history due to a rare geopolitical event.

The cosmonaut Sergei Krikalev departed on the Soyuz TM-12 spacecraft towards the Mir space station, still as a citizen of the Soviet Union.

During his stay in orbit, Krikalev conducted experiments, technical tasks, and maintenance on the station. However, the country that had sent him into space was facing its definitive dissolution.

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Mission on Mir began before the Soviet collapse

Sergei Krikalev inside the Mir station, surrounded by space equipment and observing Earth through the window during a Soviet orbital mission. — Sergei Krikalev inside the Mir space station during a historic mission that coincided with the collapse of the Soviet Union in 1991.

Krikalev’s stay was initially to follow the schedule planned for space missions at the time.

In July 1991, the flight engineer agreed to extend his stay on the Mir station for operational adjustments.

In practice, two planned flights were reduced to just one. The change forced Krikalev to remain in orbit until the arrival of the next crew.

The Soviet Union, during this same period, was plunging into severe political, economic, and administrative instability.

Country disappeared while cosmonaut remained in orbit

Krikalev continued performing scientific experiments and maintenance activities during the Soviet crisis.

Ground support and funding for the space program faced increasingly significant impasses.

On December 25, 1991, the Soviet Union officially ceased to exist.

Krikalev had left Earth for a nation that no longer existed at the time of his return. The story, therefore, gained enormous international repercussion.

Return occurred after agreement with Germany

Sergei Krikalev returned to Earth on March 25, 1992, after 311 days in space.

At the time, Germany paid US$ 24 million to Russia to send the pilot Klaus-Dietrich Flade to the Mir station.

The German mission helped enable the return of the cosmonaut, who had remained in orbit much longer than expected.

Krikalev landed in a completely different scenario from the one he left in May 1991. The Soviet Union had disappeared, and Russia was beginning a new political and space phase.

Recognition transformed Krikalev into a historical symbol

Sergei Krikalev at an official Roscosmos press conference, wearing a suit and microphone in front of a blue panel of the Russian space program. — Sergei Krikalev during a press conference related to the Russian space program after becoming one of the most emblematic cosmonauts in the history of the Mir station.

The return earned Krikalev the title of Hero of Russia.

The cosmonaut also held the distinction of Hero of the Soviet Union, reinforcing his importance in two historical periods.

In the following years, Krikalev participated in fundamental missions for space exploration.

Among them were the initial assembly of the International Space Station and joint flights between Russia and the United States.

In total, Krikalev accumulated more than one year and five months of experience in space.

His trajectory came to symbolize the transition between the Soviet era and international space cooperation.

The story of Sergei Krikalev shows how a technical mission ended up crossing a gigantic geopolitical change. After all, how many people have left Earth for a country and returned when it no longer existed?

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A Soviet cosmonaut left Earth for a routine mission, spent 311 days stranded on the Mir station, and returned as the “last citizen” of a country that had already disappeared.

Sergei Krikalev launched in 1991, witnessed the collapse of the Soviet Union in orbit, and returned in March 1992 as a symbol of Russian space transition

Mission on Mir began before the Soviet collapse

Country disappeared while cosmonaut remained in orbit

Return occurred after agreement with Germany

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A Soviet cosmonaut left Earth for a routine mission, spent 311 days stranded on the Mir station, and returned as the “last citizen” of a country that had already disappeared.

Sergei Krikalev launched in 1991, witnessed the collapse of the Soviet Union in orbit, and returned in March 1992 as a symbol of Russian space transition

Mission on Mir began before the Soviet collapse

Country disappeared while cosmonaut remained in orbit

Return occurred after agreement with Germany

Putin accelerates the Sarmat and puts pressure on the nuclear board with a 35,000 km missile called “Satan,” capable of carrying warheads, evading radars, and reaching Europe in minutes.

Recognition transformed Krikalev into a historical symbol

Dissatisfied with seeing people sleeping on the street, a man named Ryan Donais started building small mobile homes so that homeless people can escape the cold, each equipped with a bed, running water, electricity, and heating.

Workers were opening a modern road in Dover when they found, 6 meters below the asphalt, a 3,500-year-old boat made of stitched oak and plant fibers.

A giant brown band visible from space, approximately 8,850 kilometers long, connected Africa to America in the Atlantic Ocean, and satellites revealed that it is neither land nor pollution, but the largest accumulation of seaweed in the world, which broke records in 2025.

Consumers eat six times more chicken than in the 1960s, global meat supply quadruples in 60 years, and FAO report reveals the invisible cost on the plate: livestock could drive 80% of the increase in agricultural emissions over the next decade.

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