Watch crowdfunded spacecraft LightSail 2 unfurl its solar sail live - TechCrunch
10:59am PDT - July 23rd, 2019 science - TechCrunchThe Planetary Society’s pioneering spacecraft LightSail 2 is getting ready for its big moment – deploying the solar sail it carries on board, which should be able to propel the spacecraft using only the force of photons from the Sun striking its surface, if a…