The universe encompasses all of space and time we know, so it is beyond the realm of the Big Bang model to postulate what the universe beyond our horizon is.
宇宙包含我们所知的所有空间和时间，所以要求用大爆炸模型解释我们视界之外的宇宙超出了这个模型的限定范围。
Back then, there were two major rival theories about the origin of the Universe: the Big Bang theory and the Steady-State model of the Universe.
当时，对宇宙的起源有两个主要的对立理论：宇宙大爆炸理论，稳态宇宙模型。
According to the big bang model, our universe is made up of around 4% of normal (atomic) matter; 22% dark matter and 74% dark energy.
根据大爆炸模型，宇宙构成中，常规物质(原子)只占4%，暗物质占22%，暗能量占74%。
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