Zond 8
The Soviet Union launches Zond 8, the final Zond flight and the final flight of the Soyuz 7K-L1 capsule which was intended to be the command & service module of the Soviet manned lunar effort. Again, the vehicle orbits the moon and returns to Earth unmanned after a week in space. For only the second time, the 7K-L1 vehicle performs every phase of the flight flawlessly – though the Soviet Union, trying to downplay the space race, now retroactively denies that it was ever interested in sending men to the moon.