Previous images of the Ring Nebula taken by visible-light telescopes usually showed just the inner glowing loop of gas around the star.
以前由可见光望远镜拍摄的星云环仅仅显示出其内部的环绕着恒星的炽热气体环。
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A NASA Solar and Heliospheric Observatory image of the Sun shows a giant magnetic loop (lower left) filled with glowing, hot gas blasting away from the Sun.