Endeavor Launch Scrubbed Again, This Time Indefinitely

After scrubbing Endeavor's planned Friday launch for 48 hours, NASA this weekend extended the delay indefinitely. The good news: the source of the previous electrical problem has been traced back to the avionics box in the shuttle's engine compartment. The bad news: they won't be able to replace it until at least May… » 5/02/11 8:34am 5/02/11 8:34am