It's difficult to imagine a substance that is hundreds of degrees below freezing yet still a liquid. Such is the strange ...
NASA stopped short of completing a critical fuel test for its Artemis 2 SLS rocket because of hydrogen leaks that sound a lot like the problems they had during Artemis 1.
NASA announced the news Tuesday, shortly after the critical fueling test ended at Kennedy Space Center. Until the exasperating hydrogen leaks, the space agency had been targeting as soon as this ...