That surge could cause the sun to blow even more material into space, adding to its colorful, expanding shell of gas, which astronomers call a planetary nebula.
能量的激增可能会使太阳把更多的物质喷向太空，送入色彩斑斓的、正在膨胀的气体外围之中。天文学家们将这种膨胀的气团称为行星状星云。
That surge could cause the sun to blow even more material into space, adding to its colorful, expanding shell of gas, which astronomers call a planetary nebula.
能量的激增可能会使太阳把更多的物质喷向太空，送入色彩斑斓的、正在膨胀的气体外围之中。天文学家们将这种膨胀的气团称为行星状星云。
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