This article was produced by Capital & Main, an award-winning publication that reports from California on economic, political, and social issues. It is co-published here with permission. Ranjani ...

Exhaled breath can provide a treasure trove of health information, offering a noninvasive window to both respiratory microenvironments and systemic physiological states. But collecting such data is a ...

For more than a century, the California Institute of Technology, or Caltech, has been a global beacon of scientific progress and discovery, attracting some of the world’s brightest minds to Pasadena.