Space shuttle launch delayed

For the second time in less than a week, NASA has delayed the launch of the shuttle Endeavour, due to a potential leak of liquid hydrogen.With the entire shuttle fleet due to be grounded next year, one question is being asked with ever greater urgency: is the United States really committed to putting a man - or woman - back on the moon?Philippa Thomas reports.

BBC | June 18, 2009

Tags:. .endeavour. .urgency. .shuttle. .nasa. .leak