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Spaceship – Bussard Ramjet

A theoretical spaceship imagined
in the 60s by Dr Bussard, this spaceship would travel the interstellar
void by capturing the sporadic hydrogen atoms through a miles-wide
electromagnetic net, then compress them enough to achieve fusion
reaction, thus sustaining power and gaining thrust without carrying
fuel. (en.wikipedia.org/wiki/Bussard_…)

Pencil doodle on A6 sketchbook