This is one of the classic titles revered as "the Heinlein juveniles," written in the 1950s and published for the young adult market.
Travel to other planets is the coming reality, and with overpopulation stretching the resources of Earth, the necessity to find habitable worlds is growing ever more urgent. With no time to wait years for communication between slower-than-light spaceships and home, the Long Range Foundation explores an unlikely solution--human telepathy.
Identical twins Tom and Pat are enlisted as human radios that will keep the ships in contact with Earth. The conundrum is that one twin has to stay behind, and thanks to the mysteries of relativity, that one grows old on Earth while the other explores the frontiers of interstellar travel.
This is one of the classic titles revered as "the Heinlein juveniles," written in the 1950s and published for the young adult market.
