Cosmologists have plenty of ideas about how this happened.

宇宙学家对此有很多观点。

Similarly, cosmologists understand why the universe is expanding.

同样的，宇宙学家理解为什么宇宙在膨胀。

The book discusses the latest best guess by cosmologists to explain the universe.

这本书讨论了宇宙学家们为了解释宇宙所做的最新的奇思妙想。

Cosmologists may have a better idea of what they're talking about by the end of the next decade.

也许下一个十年，宇宙学家们能够搞清楚他们研究的东西到底是什么。一种被称为“超对称性”的粒子理论预言了“弱作用重粒子”

That said, cosmologists are pushing the limits of mathematical models to speculate on what, if anything, exists beyond our spacetime.

即便如此，宇宙学家正在探索数学模型的极限，来推测什么（如果有的话）存在于我们的时空之外。

Cosmologists can precisely estimate the actual size of this wave at the time of recombination because they know how quickly sound propagated in the primordial plasma.

又因为宇宙学家知道声响在原生电浆中的传播速率，他们可以精准估计再复合时期这些声波的确实大小。

The existing amounts of hydrogen and helium match theory perfectly - so well, in fact, that cosmologists claim this is the best evidence we have for the big bang.

氢和氮所存在的总量与理论计算匹配得很理想——实际上，它好得让宇宙论的学者声称这就是宇宙起源于大爆炸的最好证据。

The existing amounts of hydrogen and helium match theory perfectly - so well, in fact, that cosmologists claim this is the best evidence we have for the big bang .

氢和氮所存在的总量与理论计算匹配得很理想——实际上，它好得让宇宙论的学者声称这就是宇宙起源于大爆炸的最好证据。