"Juggernaut of Space" by Ray Cummings is a science fiction novel written in the mid-20th century. The story revolves around a looming cosmic threat to Earth, which is represented by a mysterious comet and the sinister forces behind it. The narrative follows a group of unlikely heroes, including a popular science broadcaster and various companions, as they confront this formidable danger while grappling with their own fears and limitations. The plot unfolds through the eyes of Robert Rance, who, alongside his companions—ranging from a reporter to an international financier—finds themselves taken from Earth to the harsh environment of a planetoid named Zelos. There, they encounter the Radaks, a race that has enslaved the Lei and plans to use their advanced technology to conquer Earth. As events escalate, the group learns to adapt and devise a plan to escape and thwart the Radaks' malevolent ambitions. Ultimately, they confront the Great Mind of the Radaks, leading to a struggle that determines the fate of both Earth and the enslaved Lei. The novel combines themes of heroism, sacrifice, and the resilience of the human spirit in the face of overwhelming odds. (This is an automatically generated summary.)