* Astronomy

The Soviet Zond 1964A lunar flyby spacecraft was launched from Tyuratam (Baikonur Cosmodrome) on June 4, 1964.
The SL-6/A-2-e carrier rocket had a failure at launch. The aim of the Zond 1964A mission was to test technologies for future flights to Mars.

NASA had incorrectly identified the launch of Molniya-1 No.2 as a failed attempt to launch a Zond spacecraft on a circumlunar technology demonstration mission, and assigned it the placeholder designation Zond 1964A
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