U.S.officials have warned North Korea against going ahead with what it says will be the launch of an experimental space satellite early next month.

VOA: standard.2009.03.25

For now I want to tell you a little bit about what open course ware is and also share with you some work experience with our first public launch of the site.

现在我想谈谈,什么是开放课程软件,并且与你分享一些,第一次开放这个网站的工作经验。

麻省理工公开课 - 媒体、教育、市场课程节选

Japanese Defense Minister Yasukazu Hamada says he has ordered the interception of any dangerous debris, if anything goes wrong with North Korea's planned rocket launch.

VOA: standard.2009.03.27

The French launch coincides with the anticipated spacewalk of U.S.Astronauts John Grunsfeld and Drew Feustel who are expected to exit the space Shuttle Atlantis for the first of five spacewalks to upgrade Hubble telescope.

VOA: standard.2009.05.14