Copernican theory

however, when I found incidentally that he was ignorant of the Copernican Theory and of the composition of the Solar System.

我无意中发现他竟然对于哥白尼学说以及太阳系的构成，也全然不解。

Galileo was a famous Italian scientist by whom the Copernican theory was further proved correct.

伽利略是有名的意大利科学家，他进一步证明了哥白尼学说是正确的。

Galileo had believed Copernican theory ( that the planets orbited the sun) since early on, but it was only when he found the evidence needed to support the idea that he started to publicly support it.

伽利略很早就相信哥白尼理论（即行星绕太阳公转），但只有当他发现了证据来支持这一学说时，才公开表示支持。

Galileo was imprisoned for popularizing the Copernican theory and for his other contributions to scientific thought.

伽利略因为推广哥白尼学说以及他的其他对于科学思想的贡献而被囚禁。