“One more step on the way to making Wonder Woman’s invisible plane…and, coincidentally, Scotty’s ‘transparent aluminum…,'” writes Maureen Martin, pointing out LiveScience’s article “Glass Wings” to readers of Chronicles of the Dawn Patrol.

Royall is part of a group of scientists who think that if you wait long enough, perhaps billions of years, all glass will eventually crystallize into a true solid. In other words, glass is not in an equilibrium state, (although it appears that way to us during our limited lifetimes).

“This is not universally accepted,” Royall told LiveScience. “Our work will go some way to making that point more accepted. I think there is a growing weight of evidence that certainly many glasses ‘want’ to be a crystal.”