What was the name of the program that marked the start of America's space-based photo reconnaissance capability?

The Discoverer Research Program was pivotal in establishing the United States' capability for space-based photo reconnaissance. Initiated during the Cold War, this program led to the launch of the first satellites designed to capture photographic intelligence from orbit. It was a crucial development that allowed military planners to gain insights into enemy activity and geographical landscapes without intruding into foreign airspace.

This program utilized recoverable satellites, enabling not just the collection of vital intelligence but also the retrieval of film capsules once the mission was complete. The Discoverer Program ultimately paved the way for more advanced reconnaissance efforts and set a precedent for future satellite technology in both military and civilian applications. Its significance in the history of national security and surveillance technology firmly establishes its legacy within the realm of space exploration.