Comment on Little Pea Shooters

mr_azerty@lemmy.world ⁨2⁩ ⁨days⁩ ago

What bothers me is I often read they are using the planet’s gravity to gain speed. Whatever speed an objet may gain while entering orbit should be lost when exiting this, right ? So I guess it’s the cinetic energy of the planet that is actually fuelling the spacecraft, isn’t it ?

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