Russian Cosmonaut Sergei Avdeyev Signed Photo EVA Mir Space Station 1999

Russian Cosmonaut Sergei Avdeyev Signed Photo EVA Mir Space Station 1999

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1999 photo of Mir space Station signed by Soyuz TM-28 flight Engineer Sergei Avdeyev. 

It is a high-quality photo on Kodak paper, size 8 x 10”. Excellent condition.

 

Sergei Vasilyevich Avdeyev –Russian engineer and cosmonaut. He flew on Soyuz TM-15, Soyuz TM-22, Soyuz TM-28, Soyuz TM-29. Total EVA 42 hours and 2 minutes. 

 

For a long time, Avdeyev held the record for time duration experienced by a human being.

In his 747 days aboard Mir, cumulative across three missions, he went approximately 27,360 km/h and thus aged roughly 0.02 seconds (20 miliseconds) less than an Earthbound person would have, which is considerably more than any other human being, except Sergei Krikalev. This is due to the special relativistic effect of time dilation and is not properly thought of as time traveling as described by mainstream culture. A common misconception is that the Apollo astronauts hold the record—they did go faster than Avdeyev, but they were only in space for a few days.

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