"Wunderwelten" by Friedrich Wilhelm Mader is a science fiction novel from the early 20th century. Six adventurers embark on an extraordinary space voyage aboard the spherical ship Sannah, powered by a revolutionary anti-gravity drive. Their journey takes them from the Moon's far side to Mars's dying civilization, through Saturn's rings, and beyond—swept by a comet past Neptune into interstellar space. They discover Alpha Centauri's paradise planet Eden, where an advanced society lives in harmony with nature, before returning home to plan new expeditions. (This is an automatically generated summary.)
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