'We conclude that the possibility of Oumuamua being a light sail is extremely unlikely,' Shangfei Liu, an astronomer at Sun Yat-sen University in Zhuhai, China, told The Daily Beast.大概意思就是:如果是我们说的“光帆飞行器”——也就是太阳帆,它使用阳光周游太空,不携带燃料并不停加快。那么它要么体现出多个反射光点,大概是只有一个反射光点。
Light sails, which are also known as solar sails, use photons - tiny particles of electromagnetic energy - in the way that a sailboat uses wind. If they were part of a spacecraft, they would reflect either a lot of light or only a little.
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