Russian President Vladimir Putin explores exhibits of the Park of Space Explorers museum complex at the landing site of Yuri Gagarin during his visit to Saratov region, Russia. The governor of Saratov region Valery Radaev is on the left.

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Russian President Vladimir Putin plants a pine tree on Cosmonautics Day at the Park of Space Explorers museum complex during his visit to Saratov region, Russia.

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Russian President Vladimir Putin holds a conference on the development of the space industry, in the city of Engels in the Saratov region, Russia.

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Russian President Vladimir Putin holds a conference on the development of the space industry, in the city of Engels in the Saratov region, Russia.

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Russian President Vladimir Putin attends a flowers laying ceremony on Cosmonautics Day at the Park of Space Explorers museum complex at the landing site of Yuri Gagarin in Saratov region, Russia.

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Russian President Vladimir Putin welcomes members of the Roscosmos cosmonaut squad on Cosmonautics Day at the Park of Space Explorers museum complex at the landing site of Yuri Gagarin in Saratov region, Russia.

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A helicopter flies around the monument to the first cosmonaut during a visit of Russian President Vladimir Putin on Cosmonautics Day to the Park of Space Explorers museum complex at the landing site of Yuri Gagarin in the Saratov region, Russia. April 12, 2021 marks the 60th anniversary of the the first human spaceflight.

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Members of the Roscosmos cosmonaut squad are pictured before a flower laying ceremony on Cosmonautics Day at the Park of Space Explorers museum complex at the landing site of Yuri Gagarin in Saratov region, Russia.

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Russian President Vladimir Putin lays flowers at the monument to the first cosmonaut on Cosmonautics Day in the Park of Space Explorers museum complex at the landing site of Yuri Gagarin in the Saratov region, Russia.

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Russian President Vladimir Putin welcomes members of the Roscosmos cosmonaut squad on Cosmonautics Day at the Park of Space Explorers museum complex at the landing site of Yuri Gagarin in Saratov region, Russia.

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Russian President Vladimir Putin welcomes members of the Roscosmos cosmonaut squad on Cosmonautics Day at the Park of Space Explorers museum complex at the landing site of Yuri Gagarin in Saratov region, Russia.

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Inna Buykevich, head of the Yuri Gagarin National Museum, left, accompanies Russian President Vladimir Putin during his visit the Park of Space Explorers museum complex at the landing site of Yuri Gagarin in Saratov region, Russia. April 12, 2021 marks the 60th anniversary of the the first human spaceflight.

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Russian President Vladimir Putin visits the Park of Space Explorers museum complex at the landing site of Yuri Gagarin in Saratov region, Russia. April 12, 2021 marks the 60th anniversary of the the first human spaceflight.

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