The Soviet Union launches the unmanned space probe Luna 22 toward the moon, the last of the moon-orbiting Luna missions (the remaining vehicles in the series will be attempted landings). Luna 22 remains operational in lunar orbit for 17 months.
The Soviet Union launches the unmanned space probe Luna 22 toward the moon, the last of the moon-orbiting Luna missions (the remaining vehicles in the series will be attempted landings). Luna 22 remains operational in lunar orbit for 17 months.