望远镜的发明彻底改变了我们对宇宙的认识。

The ___discovery of the telescope completely changed our understanding of the universe.

这项科学发现彻底改变了我们对宇宙的理解。

The scientific ___discovery completely changed our understanding of the universe.

在证据开示阶段，原告律师要求对方提供所有相关的电子邮件记录。

During ___discovery, the plaintiff's lawyer asked for all relevant email records from the opposing party.