Dealing with liquid oxygen is hard, but we've been dealing with it in rocket engines since the 1940s at least. It's not a mystery, but like anything in aerospac

Dealing with liquid oxygen is hard, but we've been dealing with it in rocket engines since the 1940s at least. It's not a mystery, but like anything in aerospace, as the saying goes, it is terribly unforgiving of any carelessness, incapacity or neglect.