Exposing Pseudoastronomy

Comet Hale-Bopp put on a fantastic display for Earth-bound skywatchers for over two years, often considered "the" comet of the 20th century. But, conspiracies and fear marred the event and led to the suicide of 39 members of the Heaven's Gate cult. In this Part 2 of 3 episodes, I discuss how decidedly unceientific claims and methods were used to divine information that became a key component of the mythology.