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MORE than two years after a rocket failure destroyed NASA’s NanoSail-D solar sail, the agency last week launched a spare into orbit. If it unfurls as planned over the coming days, it will be the first NASA sail to open in space.
“If NanoSail-D unfurls as planned over the coming days, it will be the first NASA sail to open in space”
Solar sails are designed to be propelled by the pressure of sunlight. They have the potential to carry spacecraft vast distances without fuel, but for…
