The leisure touring has a tradition of distant origin and a long development in Chengdu.
成都地区的旅游休闲传统源远流长。
They were looking at exploding stars in the distant universe, and they noticed that not only is the universe expanding from its big bang origin, but its expansion is actually speeding up.
观察远处宇宙恒星爆炸的时候,他们注意到宇宙不仅从大爆炸起源点开始不断膨胀,膨胀的速度还越来越快。
Star clusters like NGC 3603 provide important clues to understanding the origin of massive star formation in the early, distant universe.
NGC3603星云给了我们一个重要的提示,让我们明白了星团在早期,遥远的宇宙里形成的原始状态。
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