1. Regions of the universe with large positive vacuum energy experience expansions so virulent that a supernova explosion would seem peaceful in comparison. 具有大的正真空能量的宇宙区域，所经历的激烈膨胀，使超新星爆发在相较之下显得相当温和。
2. A supernova occurs when a hot, dense star burns up its fuel too quickly and suddenly implodes, generating shock waves and intense blasts of radiate across space. 超新星爆炸是由于一个炙热稠密的恒星过快燃尽了燃料，突然发生内爆，从而向太空释放出冲击波和密集的辐射。
3. The diffuse X-ray cloud is due to gas that has accumulated in the central region and been heated to millions of degrees, probably by shock waves from supernova explosions. 弥漫的X射线云的成因是中心区域所积累并被加热到数百万度的气体，加热的可能原因是超新星爆发产生的激波。
英英解释
n.
1. a star that explodes and becomes extremely luminous in the process
