NASA astronaut Kjell Lindgren, left, Russian cosmonaut Oleg Kononenko, center, and Japan Aerospace Exploration Agency astronaut Kimiya Yui participate in the second day of qualification exams May 7 at the Gagarin Cosmonaut Training Center in Star City, Russia. The Expedition 44/45 trio is preparing for launch to the ISS in their Soyuz TMA-17M spacecraft .

An ongoing investigation into a failed Progress mission to the International Space Station will postpone both the return of three people currently on the station and the launch of their replacements, NASA announced May 12.

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Jeff Foust has more than a decade of experience writing about space policy, entrepreneurial ventures and regulatory affairs. In 2001, he established spacetoday.net to aggregate and summarize the day's space-related news stories. In 2003, he started The...