Science hardly ever pronounces itself with fireworks. More usually, it advances via small however consequential modifications—new methods of seeing the mind age, surprising hyperlinks between language and cognition, incremental progress in opposition to most cancers, Alzheimer’s, and air pollution, and sharper devices educated on the deeper universe. Frontline’s Science Notebook, curated by eminent science journalist R. Ramachandran, tracked these developments all year long, taking note of the sluggish churn of proof.