space colonies

The Apollo 11 astronaut invites young people to evaluate Mars as a potential planet for human colonization, and describes what Mars residents might experience while traveling to and living on the Red Planet.

"Twelve-year-old Christopher Nichols and his family live on a new planet, Perses, as colonists of Melming Mining's Great Mission to save the earth. When Landers, as the attackers are called, obliterate the colony to steal the metal and raw ore, Christopher and a small group of survivors are forced into the maze of mining tunnels below the surface of Perses"--.

Darrow, a Red, which is the lowest caste in the color-coded society of the future, joins a revolutionary cell and attempts to infiltrate an elite military academy after witnessing the execution of his wife.

"A spaceship the size of a city drifts through space on its century-long journey to find a new Earth. When it launched it was populated by thousands of hopeful passengers and the most technologically advanced Zoids in the world, ready to serve the crew's every need. But that was then, and this is now. The Zoids rebelled against their masters, wiping out most of the crew in one bloody uprising. Now the few remaining humans are hunted by the Zoids like vermin. Fourteen-year-old York is a Scavenger - he hunts Zoids and kills them by any means he can, bringing back their parts to mend the technology on which the few remaining humans rely"--OCLC.

"The lunar colony is slowly winding down like a small town circumvented by a new highway. Our hero, the mooncop, makes his daily rounds. His beat grows ever smaller. The population dwindles. A young girl runs away, an old lady loses her dog, an automaton wanders off from the Museum of the Moon"--Back cover.

Alternate chapters follow teenagers Todd and Viola, who become separated as the Mayor's oppressive new regime takes power in New Prentisstown, a space colony where residents can hear each other's thoughts.

Presents experts' opinions on the viability of space colonization.

On a lunar colony, fifteen-year-old Phaet Theta does the unthinkable and joins the Militia when her mother is imprisoned by the Moon's oppressive government.

Exiled from her desert community and separated from her sisters, Leica finds refuge in the Dome, where she hopes to uncover the truth behind a deadly plague and find a way home.

After fleeing the Moon, fifteen-year-old Phaet Theta hides on Earth and plots how to rescue her siblings from the wrath of the Lunar government.