New way to produce antimatter-containing atom discovered

        <p><a href="http://www.physorg.com/news/2011-07-antimatter-containing-atom.html%22%3ENew way to produce antimatter-containing atom discovered</a></p>
        <p>Physicists at the University of California, Riverside report that they have discovered a new way to create positronium, an exotic and short-lived atom that could help answer what happened to antimatter in the universe, why nature favored matter over antimatter at the universe's creation.</p>