Star travel is commonly believed unattainable due to the distances involved, but in fact it is not the distance, but the apparent time to travel the distance, that is the obstacle. In fact the time required to transit between Earth and other solar systems can be made as small as desired, according to Dr. Albert Einstein's proven theory of Relativity. By approaching light speed time slows down for the Starship and its occupants. Then the problem of interstellar travel reduces to having enough continual thrust. to approach light speed.
In this revolutionary book Dr. Phillip Duke suggests that a two stage fission atomic energy plant, such as propels an atomic submarine, could produce enough heat energy for superheated steam jets to propel the starship, making star travel practical. Life support is provided by soybeans growing under lights, and everything is recycled. By calculation a voyage to another star system should take only a few years at most. The rewards for star travel are inconceivable- whole new and unexploited Earth type worlds are there, waiting to be claimed.
Christopher Columbus was thought mad, until he sailed west to go east, and discovered the New World, the Americas. Phillip Duke has been severely criticized for publishing that by traveling fast enough, many new Earth type worlds become available for human colonization. Read this book, and decide for yourself. whether interstellar space travel, and colonization of new Earth type worlds, is attainable NOW.