Washington Post: In honor of Earth Day, US Energy Secretary Steven Chu participated in a live online forum hosted by the Washington Post. It’s too late to submit questions, but you can still read the transcript. Chu also communicates with the public on his Facebook page.
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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