ScienceNow: Cut a thin strip from a piece of paper, twist it, and connect the two loose ends. You’ll end up with a Möbius strip, a graceful bracelet that oddly has only one side, as you can easily demonstrate by running your finger around it. Now try the same thing with the much wider strip of paper. Why is it harder to connect the ends? Mathematicians now have a precise answer.
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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