Editor's update: NASA will hold a press conference on Friday at 10:30 am EDT at NASA Headquarters with Bill Readdy and Mike Griffin. This will be followed at 11:30 am EDT by another press event from Johnson Space Center. Both events will air live on NASA TV.
Editor's note: Around 6:00 pm EDT Thursday evening NASA decided to delay the launch of STS-114 until July. The new launch window extends from 12 - 31 July. Although NASA will eventually have to roll Discovery back to the VAB for External Tank modifications, it is not likely to do so right away. Instead, NASA will continue to conduct tests at the pad to better understand several anomalies observed during tests last week - tests that could only have been done at the pad.

