Ranger program: Ranger 7 sends back the first close-up photographs of the moon, with images 1,000 times clearer than anything ever seen from earth-bound telescopes.

The Ranger program was a series of uncrewed space missions by the United States in the 1960s whose objective was to obtain the first close-up images of the surface of the Moon. The Ranger spacecraft were designed to take images of the lunar surface, transmitting those images to Earth until the spacecraft were destroyed upon impact.

A series of mishaps, however, led to the failure of the first six flights. At one point, the program was called "shoot and hope". Congress launched an investigation into "problems of management" at NASA Headquarters and Jet Propulsion Laboratory. After two reorganizations of the agencies, Ranger 7 successfully returned images in July 1964, followed by two more successful missions.

Program Ranger organization
Program Ranger organization (Source: Wikimedia Commons)
Ranger Block 1 scientific experiments
Ranger Block 1 scientific experiments (Source: Wikimedia Commons)
20180328 Ranger restoration Udvar-Hazy
20180328 Ranger restoration Udvar-Hazy (Source: Wikimedia Commons)
The Ranger Spacecraft GPN-2000-001979
The Ranger Spacecraft GPN-2000-001979 (Source: Wikimedia Commons)

Watch: NASA Ranger Program Documentary

From the Space Telescope Channel channel.

Sources and further reading: Wikipedia — Ranger program, Ranger 7, Moon, Telescope (CC BY-SA). Images: Wikimedia Commons.