<http://schema.org/alternativeHeadline>
"The new technique could help researchers probe the mysteries of antimatter, including why it's so rare compared with matter in the universe."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/green-tech/research-innovations/stories/coldest-antimatter-yet-is-goal-of-new-technique>