1. The Big Bang theory is the most widely accepted theory of the origin of the universe.
大爆炸理论是目前最广泛接受的宇宙起源理论。
2. After the Big Bang, the universe began to expand.
大爆炸之后,宇宙开始膨胀。
3. The Big Bang theory explains the evolution of the universe.
大爆炸理论解释了宇宙的演化过程。
4. The Big Bang theory is supported by many observational data.
大爆炸理论得到了许多观测数据的支持。
5. The Big Bang theory remains an important topic of study in the scientific community.
大爆炸理论仍然是科学界研究的重要课题。