Arthur Popper of the University of Maryland is among the scientists trying to evaluate the effect of high-intensity sonar and other underwater noise on the behavior and health of fish. Like whales, dolphins, and other marine mammals, fish have sensitive hearing organs. But unlike the case of marine mammals, which have beached themselves after sonar tests, little is known about how fish respond to loud noise.
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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