Were in the boeing milestones of flight hall at the center of the museum. And this is the hall where we display the pioneering aircraft and spacecraft that transform the modern world. When this Museum Opened in july of 1976, almost every space artifact on display had recently been in the news. This was very much a museum of contemporary space flight. And it was for most people their first chance to see what had been lauded in the 1960s and early 1970s during this heroic age of Space Exploration when humans first ventured off the planet into space and all the way to the moon, when the United States and the soviet union began sending craft out to explore the nearby planets. All of this was exciting, thrilling, and people just flocked in to the museum to see it. In the 40 years since this building opened, we have continued to acquire treasures of space history. We have now about 17,000 artifacts related to space history. We have just over a thousand of them on display in our two locations