• I_Has_A_Hat@lemmy.world
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    3 days ago

    Because all of it is expected and known. It would actually be a lot harder to calculate if it were something taking place just here on earth. You have to factor in stuff like wind and turbulence which throws calculations off. But in space? Little to no unexpected variables. It’s Newton’s first law; an object in motion stays in motion.

    We know the position of the moon and how it will move.

    We know the position of the earth and how it will move.

    We know the position of the spacecraft and how it will move.

    From there, it’s just math.