In short, cryogenic liquids, especially Hydrogen, is incredibly destructive to any container. It's pretty much the smallest molecule around and will wiggle into

In short, cryogenic liquids, especially Hydrogen, is incredibly destructive to any container. It's pretty much the smallest molecule around and will wiggle into and make anything brittle over time. http://www.nasaspaceflight.com/2006/01/x-33venturestar-what-really-happened/ http://www.nasaspaceflight.com/2006/01/x-33venturestar-what-...