More like Dangerous

anchored on:science fictionspace explorationnear futureadventurousyoung adultcoming of age+2 more

but

Narrow

Have Space Suit - Will TravelNovel
Robert A. Heinleinstandalone novel1958
Space opera, about aliens, set in the moon.
“One minute Kip Russell was walking about in his own backyard, testing out an old space suit and dreaming about going to the moon - and the next he was out cold and the captive of an insidious space pirate.”
from the catalogue
Podkayne of MarsNovel
Robert A. Heinleinstandalone novel1963
Space opera, about political intrigue, set in mars.
“Poddy has one goal in life, to be the first female starship captain.”
from the catalogue
Starman JonesNovel
Robert A. Heinleinstandalone novel1953
Space opera, set in far future and other star systems.
“Starman Jones, a 1953 science fiction novel by Robert A. Heinlein, features a farm boy who wants to go to the stars.”
from the catalogue
Rocket Ship GalileoNovel
Robert A. Heinleinstandalone novel1947
Hopeful in tone, set in the moon.
“Three teenage boys do backyard experiments on powerful model rockets.”
from the catalogue
Tunnel in the SkyNovel
Robert A. Heinleinstandalone novel1955
Set in other star systems and far future.
“As the final test of a survivalist/explorer class, teenagers are dumped on an alien planet to use their skills while awaiting pickup.”
from the catalogue
Heart of the CometNovel
David Brin & Gregory Benfordstandalone novel1986
Hard science fiction.