Nature: One scrap metal worker is dead and six others are sick after they pried off the steel and lead casing that protected a potent cobalt-60 source of gamma rays. The source was used by the chemistry department of the University of Delhi, which sold it to the workers as scrap. In response to the incident, the Indian government is reviewing the regulations that stipulate how scientists handle radioactive materials.
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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