Disastrous space mission that resulted in the deaths of Charles "Pete" Conrad and Richard Gordon in 1968. Launched on March 7th, as the third test of the "Agena" docking system, soon after docking Conrad and Gordon discovered that they were in a heavy roll. A faulty thruster in their OAMS system was locked in the "on" position. Rotating at over a revolution per second, Conrad was unable to shut down the OAMS system before passing out. Their spacecraft continue to roll faster until fuel for the thruster finally ran out.