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During a similar test earlier this month, sensors detected a leak of super-cooled liquid hydrogen – rocket fuel for NASA's SLS rocket.

Rocket Lab's next-generation Neutron rocket fairing, dubbed the "Hungry Hippo" for its hinged and reusable top-end, has reached the company's spaceport in Virginia for further testing and integration.

The demanding series of tests on the 18-foot (5.5-meter) diameter tank were conducted inside a test stand at NASA’s Marshall Space Flight Center in Huntsville, Alabama. The tank was lowered into a ...