Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

Naturally occurring superheavy elements beyond those listed in the periodic table could potentially explain why asteroid 33 Polyhymnia is so dense, new research suggests. When you purchase through ...

We’ve reached the limit of a very successful way to make new elements in the lab. In new research, scientists unveil a new take on that technology and report its success. The heaviest elements could ...