The Rolling Stones (1952) – On a now well-established Lunar colony, the Stone family, with a set of decidedly “Unheavenly Twins” (one of Heinlein's working titles for the book) decides to buy a used spaceship and take a Grand Tour around the solar system's inhabited planets.
For more information on Heinlien's Juveniles (written between 1947 and 1958) see our entry on Robert Heinlein's Rocket Ship Galileo, The Literary Encyclopedia profile by William Patterson, University of California, Santa Cruz
Patterson, William. "The Rolling Stones". The Literary Encyclopedia. First published 10 November 2004
[http://www.litencyc.com/php/sworks.php?rec=true&UID=16611, accessed 26 June 2017.]