Conflict on the Eastern Launch Range

NASA will wait until Monday to decide if Space Shuttle Endeavour or the Atlas 5 rocket carrying America’s return to the Moon will fly Wednesday.

NASA postponed space shuttle Endeavour’s launch to the International Space Station on Saturday because of a leak associated with the gaseous hydrogen venting system outside the shuttle’s external fuel tank. The system is used to carry excess hydrogen safely away from the launch pad. Managers scrubbed the launch for at least 96 hours.

The earliest the shuttle could be ready to launch is June 17. However, there is a conflict on the Eastern Range that date with the scheduled launch of the Lunar Reconnaissance Orbiter/Lunar Crater Observation and Sensing Satellite.