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Today’s breakfast conversation: at a first (or even a second) glance it’s hard to tell that Vagner is fifteen years younger than Cassidy and Behnken, while Ivanishin is only a year older than these two.

Soyuz MS-16 and SpaceX DM-2 crews aboard ISS
Anatoli Ivanishin, Ivan Vagner, Chris Cassidy, Bob Behnken, and Doug Hurley (photo by NASA)

I wonder whether it is that Russians age faster, or that Americans feed their astronauts something special…

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