Danger in Deep Space — Carey Rockwell

The Tom Corbett space series consists of eight books, which may have been based on the novel Space Cadet by Robert Heinlein. The series follows the adventures of Tom and his friend Roger as they train to be members of the Solar Guard. The stories center around the academy, the bunkroom, and the young men's training ship Polaris. The cadet's adventures take them to alien worlds in our solar system and beyond.