In orbital mechanics, a circumlunar trajectory, trans-lunar trajectory or lunar free return is a type of free return trajectory which takes a spacecraft from Earth, around the far side of the Moon, and back to Earth using only gravity once the initial trajectory is set. == History == The first spacecraft to fly a circumlunar trajectory was Luna 3.
In orbital mechanics, a circumlunar trajectory, trans-lunar trajectory or lunar free return is a type of free return trajectory which takes a spacecraft from Earth, around the far side of the Moon, and back to Earth using only gravity once the initial trajectory is set. == History == The first spacecraft to fly a circumlunar trajectory was Luna 3.
Source: Wikipedia "Circumlunar trajectory" · CC BY-SA 4.0
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