Expedition 23

At the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 23 Flight Engineer Tracy Caldwell Dyson (c, in white coat), Soyuz Commander Alexander Skvortsov (to her left) and Flight Engineer Mikhail Kornienko (r) answer questions from reporters following a a ceremony March 21, 2010 prior to their departure for the Baikonur Cosmodrome in Kazakhstan for final training prior to their launch April 2 on the Soyuz TMA-18 spacecraft. Also attending were backup Flight Engineer Scott Kelly (without hat, third from left) and backup Soyuz Commander Alexander Samokutyayev (to Kelly’s left). Credit: NASA/Mark Bowman

At the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 23 Flight Engineer Tracy Caldwell Dyson (c, in white coat), Soyuz Commander Alexander Skvortsov (to her left) and Flight Engineer Mikhail Kornienko (r) answer questions from reporters following a a ceremony March 21, 2010 prior to their departure for the Baikonur Cosmodrome in Kazakhstan for final training prior to their launch April 2 on the Soyuz TMA-18 spacecraft. Also attending were backup Flight Engineer Scott Kelly (without hat, third from left) and backup Soyuz Commander Alexander Samokutyayev (to Kelly’s left). Credit: NASA/Mark Bowman

Photographer Mark A. Bowman