Nature: Omid Kokabee, who has been imprisoned in Tehran since February 2011, was sentenced on Sunday to 10 years for alleged conspiracy. A graduate student in the physics department at the University of Texas at Austin, Kokabee was reported missing last year when he failed to return to Texas from a trip home to Iran over winter break. Although his friends maintain that no proof was presented at the trial, he was found guilty of “communicating with a hostile government” and “illegal earnings,” writes Michele Catanzaro for Nature. He plans to appeal the sentence.
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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