noun🔗Share超新星，超新星爆发 The explosion of a star, which increases its brightness to typically a billion times that of our sun, though attenuated by the great distance from our sun. Some leave only debris (Type I); others fade to invisibility as neutron stars (Type II)."Astronomers observed a brilliant supernova in a distant galaxy, temporarily outshining all the other stars around it. "天文学家在遥远的星系中观测到一颗耀眼的超新星爆发，它短暂地盖过了周围所有其他恒星的光芒。astronomyspacephysicssciencephenomenaChat with AIVocabulary GamePractice Reading
