Alien Worlds is a syndicated radio show created by Lee Hansen that follows the International Space Authority (ISA) as they explore deep space. Set on the Arthur C. Clarke Astronomical Observatory, the show features a cast of characters including Commissioner White, Research Director Dr. Maura Cassidy, Starlab's Director of Operations Jerry Lyden, and ISA pilots Captains Jon Graydon and Buddy Griff. Alien Worlds is well-known for its realistic sound effects, high production values, documentary-style dialog, and full symphonic soundtrack performed by the London Symphony Orchestra.

The show first premiered on January 7, 1979, and a total of 26 half-hour episodes aired between 1979 and 1980 on Watermark Inc. Alien Worlds gained popularity internationally, being broadcast on more than 500 US FM radio stations as well as stations in New Zealand and Australia. The series was sponsored by Peter Paul, Cadbury, which advertised their Cadbury Caramello chocolates. While the show is no longer aired on Sirius Satellite Radio or the Alien Worlds website, it is currently being developed for 3-D animation for television and DVD release.

Sources: wikipedia.org