<http://schema.org/alternativeHeadline>
"Check out what it looks like to fall from 127,850 feet up, where the sky is dark and the air is completely devoid of oxygen."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/space/blogs/watch-felix-baumgartners-free-fall-from-24-miles-up>