科学家曾经认为,小行星没有尾巴,但哈勃太空望远镜最近在介于火星和木星轨道之间的小行星带中,发现了一个奇特的小行星。这个小行星拖着6条会变化方向的尾巴,“就像一个不停旋转的草坪喷水器”。研究人员利用模型分析推测,这些尾巴应该是小行星在太阳光照射下自转速度 Scientists used to think that asteroids have no tail, but the Hubble Space Telescope recently discovered a fancy asteroid in an asteroid belt between Mars and Jupiter’s orbit. The asteroid dragging six tail will change direction, “” is like a non-stop rotating lawn sprinkler. " Using model analysis, the researchers speculate that these tails should be asteroid rotation speed in sunlight