More like Undersea Quest

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Jim EdenSeries
series3 books1954
completed
Science fiction, adventurous in tone, about space colonization, set in near future and underwater.
“The hero of the stories is cadet Jim Eden of the Sub-Sea Academy.”
from the catalogue
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Podkayne of MarsNovel
Robert A. Heinleinstandalone novel1963
Space opera, about political intrigue, set in space.
“Poddy has one goal in life, to be the first female starship captain.”
from the catalogue
Red PlanetNovel
Robert A. Heinleinstandalone novel1949
About aliens, set in mars and far future.
“A boy colonist on Mars takes his bouncing ball Martian pet with him to boarding school, but the new Headmaster is a controlling tyrant.”
from the catalogue
Rocket Ship GalileoNovel
Robert A. Heinleinstandalone novel1947
Hopeful in tone, about space exploration, set in the moon.
“Three teenage boys do backyard experiments on powerful model rockets.”
from the catalogue
Farmer in the SkyNovel
Robert A. Heinleinstandalone novel1950
Hard science fiction, about survival, set in outer planets & moons.
“A family emigrates to the new colony on Ganymede, but the existing colonists do not have the resources to support a flood of immigrants.”
from the catalogue
ArmadaNovel
Ernest Clinestandalone novel2015
Alien invasion and military science fiction, about aliens.