Remember when they used to have movie trailers on the radio? Me neither, but there are examples at the Drive-In of the Damned Radio Spot Archive (https://archive.org/details/driveinofthedamned). Since NASA graced us with its Galaxy of Horrors(https://exoplanets.nasa.gov/alien-worlds/galaxy-of-horrors/) poster series, it is up to us to create audio trailers to go with them. Freesound(https://freesound.org/) and creative commons music(https://www.reddit.com/r/podcasting/comments/dleuzl/big_list_of_creative_commonsroyalty_free_music/) are your friends.