New Scientist: In December four new elements were added to the periodic table. Officially recognized by both the International Union of Pure and Applied Chemistry and the International Union of Pure and Applied Physics, elements 113, 115, 117, and 118 were assigned placeholder names and symbols until official names could be proposed and approved. The Japanese researchers who discovered element 113 have proposed the name nihonium, after Nihon, which means Japan. The other three elements were discovered by collaborating teams in Russia and the US. The teams have proposed for elements 115, 117, and 118, respectively, the names moscovium, after Moscow; tennessine, after Tennessee; and oganesson, after Yuri Oganessian, a Russian physicist who helped discover element 114 in 1999. The names are expected to become official following a five-month public review.
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.