Before Endeavour Can Launch To The ISS on STS-134 A Russian Progress Craft Must Launch And Dock First

     A Soyuz-U rocket is rolled out today with the Progress M-10M supply ship loaded with supplies and experiments bound for the ISS. Much like the launch of Discovery on STS-133 depended on the successful launch and docking of the HTV cargo ship. The same scenario is getting played out again for STS-134. This time it's Progress M-10M that has to launch and dock before the launch of Endeavour. So far it's all systems go for the April 27th 8:05AM CDT launch. You can view the launch live in streaming HD on NASA TV. http://www.ustream.tv/nasahdtv

Picture Credit: Yuzhny Space Center