Macworld: If you are in need of finding out if there is ammonia, chlorine gas or methane in the air around you, there’s an iPhone app for that.A researcher at NASA’s Ames Research Center has developed what NASA calls a proof of concept of new technology that would bring compact, low-cost, low-power, high-speed nanosensor-based chemical sensing capabilities to cell phones.
The finding that the Saturnian moon may host layers of icy slush instead of a global ocean could change how planetary scientists think about other icy moons as well.
Modeling the shapes of tree branches, neurons, and blood vessels is a thorny problem, but researchers have just discovered that much of the math has already been done.
January 29, 2026 12:52 PM
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