大爆炸之前的宇宙 (Universe before big explosions):在宇宙起源这个问题上,有个说法是自大爆炸(Big Bang)之后开始。这里姑且不谈大爆炸的理论本身,关于大爆炸之前就有很多争论。
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没有人知道这究竟是为什么:在这一论点提出之前,大家都以为在大爆炸之后,宇宙的膨胀会渐渐慢下来。
No one knows why this should be: until that point, everyone assumed the universe's expansion would be slowing down after the big bang.
然而有些理论家现在相信他们已经找到能进一步探究的方法,也就是问那个极端问题:宇宙大爆炸之前发生了什么?
Yet some theorists now believe they have found ways of pushing back even further, to the ultimate question: what came before the big bang?
我们对早期宇宙的观察也许充满了神秘的圆环——甚至是三角形——但那并不意味着我们发现了宇宙大爆炸之前发生的事件的证据。
Our view of the early Universe may be full of mysterious circles — and even triangles — but that doesn't mean we're seeing evidence of events that took place before the Big Bang.
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