In 1994 Hubble began seeing spots brighten in sequence along the central ring: the supernova ejecta smacking into the ring.

 
  • 1994年哈伯開(kāi)始觀(guān)測到中央環(huán)上一連串的亮點(diǎn),這代表超新星的噴出物霹靂啪啦地撞上了環(huán)圈。
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