Endeavour launch scrubbed for at least 4 days

NASA officials have said that space shuttle Endeavour won't get a launch attempt this weekend, and likely won't get another launch attempt until June 20.Officials have instituted a 4-day scrub turnaround, meaning if the repairs go as expected, Wednesday, June 17 would be the earliest Endeavour could launch. That seems unlikely with a planned Atlas launch of the Lunar Reconnaissance Orbiter (LRO)