<http://schema.org/alternativeHeadline>
"Depending on comets' sizes, there could be between 260 billion and 83 trillion comets in the dust belt around the star, the researchers found."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/space/stories/comet-massacre-around-star-takes-scientists-by-surprise>