Unexplainable is produced by Vox and built primarily around one-on-one interviews between a host and an outside expert, researcher, or journalist. A given episode might follow a science journalist through an investigative story, such as the collapse of trust in NOAA's cod survey data, or bring on a historian of chemistry to recreate a centuries-old alchemical recipe in a lab. Recurring themes include the history of medicine and science, moments where discoveries happened by accident rather than design, and stories where scientific data collides with public trust or lived experience. The show also periodically runs personal essay episodes, such as a departing host's story about her Cuban grandmother's use of Vicks Vaporub, that connect a family or immigrant history to a broader scientific or medical thread. Several hosts appear across the sample, including Sally Helm, Bird Pinkerton, Amy Padula, Noam Hassenfeld, and Julia Longoria, with episodes crediting a rotating team of producers and editors rather than a single fixed host. Guests are typically subject-matter experts, academic researchers, or fellow journalists rather than celebrities, and are chosen for direct involvement in the story being told. Tone throughout is educational and narrative, favoring close reporting and scene-setting over debate or opinion. The show suits listeners interested in the history and process of science and medicine, health and biotech developments, and narrative science journalism rather than quick news updates. Episodes run in the roughly 20-to-40-minute range and are structured as single-topic deep dives rather than roundups. Production includes on-location reporting (a New York snowstorm, a fisheries community) alongside studio interviews.