21 tanking test. The test was conducted two and a half weeks after the second launch attempt was scrubbed on Sept. 3 after the leak at the hydrogen fill and drain quick disconnect could not be fixed.

The system is designed to prevent hydrogen boiloff but also features a leak detection system and vents for safety reasons. A quick-connect system allows the module to be installed on the aircraft ...

Aziz said the company released 30 times more than the acceptable exposure of hydrogen sulfide. The leak has already claimed ...

During testing, the cylinders have been thrown off the back of ... An explosion would require a hydrogen leak to occur in an enclosed space. In outdoor conditions, such a concentration cannot form," ...