<http://schema.org/alternativeHeadline>
"The mass that Sagittarius A* spits back out explain why there is such a dim-looking black hole in the center of our galaxy."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/space/stories/giant-black-hole-in-milky-way-spits-out-its-food>