<http://schema.org/alternativeHeadline>
"NASA will send off the Sunjammer, which covers one-third of an acre when it's unfurled, to record space weather and study the sun. The spacecraft may also be used to efficiently remove and replace decommissioned satellites."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/space/stories/sun-propelled-solar-sail-to-launch-in-fall-2014>