
Solar sails use the sun's energy to fly spacecraft, or "flight by light." It sounds like something out of a science fiction novel. In fact, it is, first being mentioned in Jules Verne's From Earth to the Moon in 1865. It's been used as a way for characters to travel through space...

Solar sails use the sun's energy to fly spacecraft, or "flight by light." It sounds like something out of a science fiction novel. In fact, it is, first being mentioned in Jules Verne's From Earth to the Moon in 1865. It's been used as a way for characters to travel through space...