Glossary term: 宇宙大爆炸理論
Description: 宇宙大爆炸理論是對宇宙演化階段的基本解釋。簡單的講，該理論讓我們了解到宇宙的起源，即從炙熱、緻密的早期階段開始，經過 138 億年的膨脹，最終成為我們今天所知的宇宙。今天，我們可以在哈勃圖中看到這種膨脹的證據。
由於我們現有的工具無法讓天文學家直接回溯到宇宙的起始階段，因此我們對宇宙大爆炸理論的理解大多來自數學模型和理論。不過，天文學家可以研究大爆炸後幾分鐘內產生的化學元素丰度（稱為大爆炸核合成）。天文學家還可以研究大爆炸留下的光學餘輝，這種現象被稱為宇宙微波背景輻射。
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Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher The translation of this term and its definition is still awaiting approval
This is an automated transliteration of the simplified Chinese translation of this term
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