[2] Besides transmitting photos, Surveyor 2 was planned to perform a 'bounce', to photograph underneath its own landing site.

During the midcourse correction maneuver one vernier thruster failed to ignite, resulting in unbalanced thrust that caused the spacecraft to tumble for its remaining 54 hours.

The next Soviet mission, Cosmos 111, was launched on March 1, 1966, but failed to reach a proper lunar trajectory, re-entering Earth's atmosphere two days later.

Each consisted of a single uncrewed spacecraft designed and built by Hughes Aircraft Company.

The Centaur upper stage of the rocket used to launch Surveyor continued on its original trajectory past the Moon, placing it into a solar orbit similar to that of the Earth.

In August 2020, NASA announced the sighting of an object in a solar orbit which could shortly make a close pass with the Earth.