Sergei Krikalyov, center, head of the Gagarin Cosmonaut Training Center, at the civil funeral service for academician Boris Chertok at the Kalinin House of Culture, Korolyov.

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Energia deputy chief designer Valery Ryumin at the civil funeral service for academician Boris Chertok at the Kalinin House of Culture, Korolyov.

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Hero of the USSR, cosmonaut Alexei Leonov at the civil funeral service for academician Boris Chertok at the Kalinin House of Culture, Korolyov.

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Vladimir Solovyov, left, engineer of the Russian ISS crew, and Hero of the USSR, cosmonaut Alexei Leonov, second right, at the civil funeral service for academician Boris Chertok at the Kalinin House of Culture, Korolyov.

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Cosmonaut and head of the test pilots department at Energia Alexander Aleksandrov at the civil funeral service for academician Boris Chertok at the Kalinin House of Culture, Korolyov.

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Cosmonaut Georgy Grechko, foreground, at the civil funeral service for academician Boris Chertok at the Kalinin House of Culture, Korolyov.

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Cosmonaut Georgy Grechko at the civil funeral service for academician Boris Chertok at the Kalinin House of Culture, Korolyov.

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The civil funeral service for academician Boris Chertok at the Kalinin House of Culture, Korolyov.

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The civil funeral service for academician Boris Chertok at the Kalinin House of Culture, Korolyov.

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An honor guard at the civil funeral service for academician Boris Chertok at Kalinin House of Culture, Korolyov.

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Federal Space Agency head Vladimir Popovkin, second left, background, and Energia corporation president Vitaly Lopota, third left, background, at the civil funeral service for academician Boris Chertok at the Kalinin House of Culture, Korolyov.

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Federal Space Agency head Vladimir Popovkin, center, and Energia corporation president Vitaly Lopota, right, at the civil funeral service for academician Boris Chertok at the Kalinin House of Culture, Korolyov.

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Federal Space Agency head Vladimir Popovkin, right, at the civil funeral service for academician Boris Chertok at the Kalinin House of Culture, Korolyov.

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Yury Koptev, left, director general of the Russia Aviation and Space Agency, and Federal Space Agency head Vladimir Popovkin at the civil funeral service for academician Boris Chertok at the Kalinin House of Culture, Korolyov.

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Joel Montalbano, director for NASA Human Space Flight Program Russia, at the civil funeral service for academician Boris Chertok, at Kalinin House of Culture, Korolyov.

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The civil funeral service for academician Boris Chertok at Kalinin House of Culture, Korolyov.

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The civil funeral service for academician Boris Chertok at Kalinin House of Culture, Korolyov.

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The civil funeral service for academician Boris Chertok at Kalinin House of Culture, Korolyov.

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