BBC: Besides its many mechanical and electronic properties, graphene can repair itself when punctured, reports a group of researchers at the University of Manchester in the UK. They discovered that effect by accident while trying to understand how and why holes were forming when they added metal contacts to strips of the material. To study the problem, the researchers deliberately poked holes in graphene sheets by firing electron beams through them. They noticed that if there were stray carbon atoms in the vicinity, they would snap into place all by themselves and fix the gap. Such self-healing could prove useful because graphene’s thinness makes it extremely fragile to work with. The paper detailing their results was published in Nano Letters.
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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