纵观其历史，格里菲斯一直是崭露头角的天文学家和宇航员的训练场。在第二次世界大战期间，公园接待了士兵，天文馆帮助培训航海飞行员。在20世纪60年代早期，它通过向26名阿波罗宇航员提供天文导航课程继续这一传统，其中包括飞往月球的一些人。多年来，该设施扩大了其通道并实现了现代化。四位董事指导了该机构：Dinsmore Alter博士，Clarence Cleminshaw博士，William J. Kaufmann II博士，现任E.C. Krupp博士。格里菲斯天文台是如此受人爱戴，用其工作人员的话说，它被爱死了。数百万游客在徒步旅行，空气污染影响和其他建筑问题导致翻新。 2002年，天文台关闭并开始了为期四年的“修复”建筑，其展品和新命名的Samuel Oschin天文馆。装修费用刚刚超过9200万美元，并为天文台提供了急需的现代化，展品和新的天文馆仪器。它于2006年11月3日重新向公众开放。今天，格里菲斯可以免费使用建筑物和望远镜，观看天文馆表演需要很少的入场费。它每月举办一次公众明星派对，以及其他与天文有关的活动。
Throughout its history, Griffith has been the training ground for up-and-coming astronomers and astronauts. During the Second World War, the park received soldiers and the Planetarium helped train marine pilots. In the early 1960s, it continued this tradition by providing astronomical navigation courses to 26 Apollo astronauts, including some who flew to the moon. Over the years, the facility has expanded its access and modernization. Four directors directed the agency: Dr. Dinsmore Alter, Dr. Clarence Cleminshaw, Dr. William J. Kaufmann II, and currently Dr. E.C. Krupp. The Griffith Observatory is so loved, in the words of its staff, it is loved to death. Millions of tourists have been refurbed on hiking, air pollution impacts and other architectural problems. In 2002, the Observatory closed and began a four-year “repair” of its exhibits and the newly named Samuel Oschin Planetarium. The renovation cost just over $92 million and provided the observatory with much-needed modernization, exhibits and new planetarium instruments. It was reopened to the public on November 3, 2006. Today, Griffith can use buildings and telescopes for free, and watching the planetarium performance requires very little admission. It hosts monthly public star parties and other astronomy-related events.