Perhaps one of the best science fiction novels of the twentieth century. I can imagine at the time this making a huge splash in the sci-fi world, because it has an impact even today with badly outdated themes and unlikely technology. But it is still quite readable and enjoyable.
I’m not one to write reviews with the intent to convince someone to read a book. Any book that receives a 5-star rating from me is simply the best I have ever read or it was imminently entertaining. This one will go one my to-be-read-again list for sure. And therein lies the benefit of going through a large body of work fairly quickly (I have gone through most of Heinlein’s works during 2015): being able to find the gems among the coal.
It’s worth noting that this book won a Hugo award in 1967. And the timing was extremely fortunate, as well, with the Apollo mission underway and Apollo 11 just two years away. This book is probably the main reason why Heinlein co-anchored the Apollo 11 broadcast with Clarke. That and the fact that he had written the script for Destination Moon in 1950 (based on his story, Rocket Ship Galileo). This is on my must-read-again list with Friday, Stranger, Troopers, and a few other of my RAH favorites.