supernovas

A meandering trek taken by light from a remote supernova in the constellation Cetus may help researchers pin down how fast the universe expands — in…

Violent explosions of massive, magnetized stars may forge most of the universe’s heavy elements, such as silver and uranium. These r-process…

A smattering of plutonium atoms embedded in Earth’s crust are helping to resolve the origins of nature’s heaviest elements. Scientists had long…