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Space shuttle launch postponed Shuttle launch delayed until July
(9 minutes later)
A new leak during fuelling has forced Nasa to postpone the launch of the space shuttle Endeavour from Cape Canaveral in Florida. A new leak during fuelling has forced Nasa to postpone the launch from Florida of the space shuttle Endeavour until July at the earliest.
The shuttle was due to have blasted off early on Wednesday, but hydrogen gas leaked from a vent line on its external fuel tank, officials said.The shuttle was due to have blasted off early on Wednesday, but hydrogen gas leaked from a vent line on its external fuel tank, officials said.
A previous leak postponed the shuttle's launch on Saturday. A previous gas leak postponed the shuttle's launch on Saturday.
The shuttle had been due to deliver part of a Japanese laboratory to the International Space Station (ISS).The shuttle had been due to deliver part of a Japanese laboratory to the International Space Station (ISS).
"At 1.55am (05.55 GMT) launch managers called a scrub, cancelling today's planned launch of space shuttle Endeavour on its STS-127 mission," a Nasa statement said."At 1.55am (05.55 GMT) launch managers called a scrub, cancelling today's planned launch of space shuttle Endeavour on its STS-127 mission," a Nasa statement said.
"Despite troubleshooting efforts, engineers were unable to achieve a decrease in the liquid hydrogen leak.""Despite troubleshooting efforts, engineers were unable to achieve a decrease in the liquid hydrogen leak."
SpacewalksSpacewalks
The next ISS construction mission will not now take place until 11 July.The next ISS construction mission will not now take place until 11 July.
Once it goes ahead, the astronauts will carry out five spacewalks to attach a permanent platform weighing 1.9 tonnes to the Japanese laboratory.Once it goes ahead, the astronauts will carry out five spacewalks to attach a permanent platform weighing 1.9 tonnes to the Japanese laboratory.
FROM BBC WORLD SERVICE More from BBC World ServiceFROM BBC WORLD SERVICE More from BBC World Service
During the mission, the ISS will be a temporary home to 13 astronauts - the first time so many have stayed on the station at once.During the mission, the ISS will be a temporary home to 13 astronauts - the first time so many have stayed on the station at once.
Later on Wednesday a committee reviewing US plans for human space flight is holding a public hearing in Washington.Later on Wednesday a committee reviewing US plans for human space flight is holding a public hearing in Washington.
It is examining Nasa proposals to replace the shuttle fleet and the agency's plans for manned space flight.It is examining Nasa proposals to replace the shuttle fleet and the agency's plans for manned space flight.
President Obama has underlined the commitment of the US to return to the moon by the year 2020.President Obama has underlined the commitment of the US to return to the moon by the year 2020.