Hello there, I'm an expert in space exploration and astronaut records. When it comes to the longest duration spent in space by a human, there are several remarkable individuals who have set records in this field. Let's dive into the details.

Valeri Polyakov holds the record for the longest single spaceflight by a human, with a total of 1437.7 days spent in space. His mission aboard the Mir space station from January 8, 1994, to March 22, 1995, was a groundbreaking achievement in human spaceflight endurance. Polyakov's extended stay in space was crucial for understanding the long-term effects of living in microgravity on the human body, which is invaluable information for future long-duration space missions.

Sergei Avdeyev is another remarkable astronaut who spent an impressive 2379.6 days in space. His multiple missions on the Mir space station contributed significantly to the understanding of human adaptation to space travel.

Vladimir Titov and Musa Manarov are also notable for their 365.0 days spaceflight, which was a part of the Soviet Union's Intercosmos program. This mission was a symbol of international cooperation in space exploration.

More recently, Mikhail Kornienko and Scott Kelly made headlines with their 340.4 days mission aboard the International Space Station (ISS). Their mission, which concluded in 2016, was a joint effort between Russia and the United States to study the effects of long-duration spaceflight on the human body. This mission was particularly important as it was part of the preparation for future deep space exploration, such as missions to Mars.

These records are not just numbers; they represent the dedication, courage, and resilience of the astronauts who have pushed the boundaries of human space exploration. The knowledge gained from these long-duration missions is essential for planning future spaceflights, especially those that will take humans further away from Earth than ever before.

Now, let's move on to the translation of the above information into Chinese.

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Ten longest human space flights#Time in spaceCrew1437.7 daysValeri Polyakov2379.6 daysSergei Avdeyev3365.0 daysVladimir Titov Musa Manarov4340.4 daysMikhail Kornienko Scott Kelly6 more rowsread more >>