July 29, 2009 (LiveScience) -- Scientists claim to have created a form of aluminum that's nearly transparent to extreme ultraviolet radiation and which is a new state of matter.
It's an idea straight out of science fiction, featured in the movie "Star Trek IV."
The work is detailed in the journal Nature Physics.
The normal states of matter are solid, liquid and gas, and a fourth state, called plasma, is a superheated gas considered more exotic. Other experiments have created strange states of matter for brief periods. This one, too, existed only briefly.
To create the new, even more exotic stuff, a short pulse from a laser "knocked out" a core electron from every aluminum atom in a sample without disrupting the metal's crystalline structure, the researchers explain.
''What we have created is a completely new state of matter nobody has seen before," said professor Justin Wark of Oxford University's Department of Physics.
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