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Expedition 23 Soyuz Commander Alexander Skvortsov and Flight Engineers Mikhail Kornienko and Tracy Caldwell Dyson conducted a series of pre-launch activities in Baikonur, Kazakhstan April 1 as they prepared for their next-day liftoff to the International Space Station on the Soyuz TMA-18 vehicle. Among the events: an appearance before the Russian State Commission and their final pre-launch news conference.