Japan’s IKAROS Successfully Rolls Out First Solar Sail in Space, Prepares For Interplanetary Cruise It’s sink or sail time for Japan’s IKAROS spacecraft, and according to initial reports from JAXA the unfurling of the first solar sail deployed for actual deep space travel went off without a hitch. But the successful sail deployment isn’t a guarantee of success. IKAROS (Interplanetary Kite-craft Ac