You might have seen a housefly, maybe even a superfly, but I bet you ain't never seen a jellyfish fly. In fact, unlike jellyfish that live in the water or on the beach, this one arose from the sky. On Friday, the launch of a SpaceX rocket from Cape Canaveral led to a jellyfish being observed. In fact, the jelly was not real but a visual effect that appears when a rocket is launched in the morning or in the evening. It reaches a height where the sun's rays illuminate the plume of gases that accompany it. This results in the illusion that the plume looks like the bell and tentacles of a giant sea monster.


通常,水母生活在水中或海滩边,但是这次水母出现在天空中。最近,SpaceX在卡纳维拉尔角进行了火箭发射。观看发射过程的人们惊讶地发现,天空中出现了一只水母。事实上,这个不是真的水母。如果火箭发射安排在清晨或者傍晚,就比较容易出现这种视觉效果。当火箭上升到一定高度,某一强度的太阳光照亮火箭在此高度排出的尾气,就会产生这个幻象。天空晴朗的话,人们从地面就能看到“天空中有一个巨大的海怪”。

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