An international team of particle physicists led by Princeton’s Cristian Galbiati paused their search for dark matter to focus on the growing demand for ventilators, needed for patients with serious cases of COVID-19. While it may sound odd for a dark matter researcher to have taken up medical manufacturing, it makes more sense when put another way: an expert in constructing sensitive instruments for compressed argon decided to experiment with compressed oxygen and nitrogen. The first 1,000 units will be constructed within the week.