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Scientists found out how to levitate objects with only using light. Most of their ideas and work are theoretical. They could use this to propel things like space crafts. It could be a laser back on Earth that shot onto the spaceship. The scientists call it photonic levitation and propulsion. Caltech scientists say that a focused beam of light could reflect and stabilize an object, which will then cause the object to be propelled. For now, they can only levitate microscopic objects. This can truly help our cause of spreading humanity to other planets and galaxies. Transportation will be so much more efficient.