1. The Big Bang theory suggests that the universe originated from a massive explosion.
大爆炸理论认为宇宙起源于一次巨大的爆炸。
2. The Big Bang theory is the core of modern cosmology.
大爆炸理论是现代宇宙学的核心。
3. The Big Bang theory explains the expansion of the universe.
大爆炸理论解释了宇宙的膨胀。
4. The Big Bang theory is supported by many observational evidence.
大爆炸理论得到了许多观测证据的支持。
5. The Big Bang theory remains a major topic in cosmological research.
大爆炸理论仍然是宇宙学研究的重要课题。