Liftoff of space shuttle Discovery is targeted for 10:39 a.m. (1439 GMT) on Tuesday. The seven-member crew arrived at Florida's Kennedy Space Center on Friday for final flight preparations.More info regarding Discovery's launch and preparations can be found at Reuters
NASA resumes Discovery launch countdown
![](images/thomasavatarsmall.jpg)
NASA yesterday resumed its countdown clocks for the launch of space shuttle Discovery. On July 13 the launch was aborted due to the failure of a critical fuel sensor.