NASA and SpaceX decided against launching Wednesday over a ground issue on the hydraulic system for clamp arms holding the Falcon 9 rocket in place on the launch pad, according to a NASA livestream.

An earlier attempt on March 12 was called off after a critical hydraulic system on ground failed shortly before launch. The hydraulic system powers a clamp arm that is used to secure the rocket to the ...

for a mission to the International Space Station on March 12. (AP Photo/Terry Renna) The mission was originally set to blast off Wednesday night, but the launch was canceled because of a “hydraulic ...

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Originally set to blast off from Kennedy Space Center on Wednesday night, the launch was canceled because of a “hydraulic ground issue with a ground support clamp arm for the Falcon 9 rocket,” NASA ...