アメリカ政府広報usinfo.state.govの U.S. Space Agency Lists Space Exploration Milestones for 2005 http://usinfo.state.gov/xarchives/display.html?p=washfile-english&y=2005&m=December&x=20051228141730lcnirellep0.8445703&t=livefeeds/wf-latest.…