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ORIGINAL CAPTION: LightSail-1 (Credit: Planetary Society)
http://gizmodo.com/these-are-the-science-stories-we-ll-be-watching-in-2016-1749459257
Excitingly, the Pasadena-based Planetary Society will be sending its crowd-funded LightSail-1 cubesat into orbit. The $4.5 million spacecraft will carry large reflective sails measuring 344 square feet (32 square meters). These sails will use the Sun’s energy as a method of propulsion. Launch is scheduled for April. Should it prove successful, two more solar sails, dubbed LightSail-2 and LightSail-3, will be built.