In fact, if we could go back to our tranquil skies above Chile, and we allow time to move forward to see how the sky might change over the next year, the pulsations that you see are supernovae, the final remnants of a dying star exploding, brightening and then fading from view, each one of these supernovae five billion times the brightness of our sun, so we can see them to great distances
实际上，如果我们回首 凝望，智利宁静的天空， 并让时间前进， 观测天空接下来一年的变化。 你们看到的脉动形状， 将是超新星－濒临消亡的恒星们，爆炸时最后遗留的部分－ 它们发出光亮，然后渐渐褪去。 每一颗超新星的亮度， 都是太阳的五十亿倍。 所以我们可以在很远的地方看到它们