Goals: Ranger 4 was equipped to collect data on interplanetary space, photograph the lunar surface and rough land a seismometer on the lunar surface.

Accomplishments: Ranger 4 was the first American spacecraft to reach another celestial body. Unfortunately, a power failure in its central computer made it incapable of carrying out its mission objectives. Ranger 4 crashed into the far side of the Moon at 15 degrees 30' south latitude and 130 degrees 42' west longitude.

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