1【长难句】

　　In its 16 years of operation it has found the first convincing evidence for the existence of black holes, made observations supporting the theory that the universe’s expansion is accelerating and confirmed that dark matter exists.

      2【结构分析】

　　句首In its 16 years of operation作时间状语，以and为切入点，得到主句it has found…, made…and confirmed…其中made后的宾语中，包含现在分词结构supporting the theory…作后置定语，修饰observations，而其中that引导同位语从句that the universe’s expansion is accelerating解释说明theory的内容;而confirmed后的宾语由that引导的名词性从句that dark matter exists充当。

      3【词汇】

　　convincing evidence 令人信服的证据

      accelerate 加速

      confirm 确认

      4【参考译文】

　　在它运行的16年中，首次发现了关于黑洞的令人信服的证据，很多观测都支持宇宙加速膨胀的理论并确认暗物质的存在。