LIVERMORE — By firing atoms of metal at another metal, Russian and American scientists created an element — No. 118 on the periodic table — that is the heaviest substance known, the scientists ...

After claims of its discovery were retracted in 2002, a new team of researchers says it has produced a few scant atoms of the heaviest element yet, called simply element 118 after the number of ...

New research suggests that the periodic table may once again reach 118. A team of nuclear chemists from the United States and Russia has announced the brief appearance of the unnamed element, the ...

An experiment begun in 2002 has produced three atoms of the heaviest superheavy element yet—element 118—according to a team of researchers from Russia and the U.S. On the basis of the number of ...

The first 117 elements on the periodic table were relatively normal. Then along came element 118. Oganesson, named for Russian physicist Yuri Oganessian (SN: 1/21/17, p. 16), is the heaviest element ...

For the second time in seven years, researchers say they have made the heaviest chemical element ever — the exotically titled ununoctium, or element 118. The evidence comes in the form of specific ...