Why NASA postponed the first Orion spacecraft flight test

Space · Published 9 October 2026 Swipe more like this →

In short: A news conference at Kennedy Space Center explains why the launch of NASA's Orion spacecraft was scrubbed, focusing on technical challenges encountered during the countdown.

On December 4, NASA officials met at Kennedy Space Center to address the postponement of the first flight test for the Orion spacecraft. A malfunction involving the Delta IV Heavy rocket's fill and drain valves led to the postponement. Because teams were unable to troubleshoot this specific component before the launch window expired, the mission was scrubbed.

The next opportunity to launch is scheduled for Friday, December 5, with a window opening at 7:05 a.m. Eastern. NASA Television will provide coverage starting at 6 a.m. EST.

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