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| Version 2 | Version 3 |
|---|---|
| Space shuttle launch postponed | Space shuttle launch postponed |
| (30 minutes later) | |
| A new leak during fuelling has forced Nasa to postpone the launch of the space shuttle Endeavour from Cape Canaveral in Florida. | |
| 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 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). | |
| "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." | |
| Spacewalks | Spacewalks |
| The next ISS construction mission will not now take place until next month. | The next ISS construction mission will not now take place until next month. |
| 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. |
| 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. |