A high-energy photonic jet (white and blue) blasts through a collapsar with a black hole at its center. The red space around ...

This is the second part of a three-part series written by Carolyn Krause. Many of the elements were synthesized using an Oak ...

Students look more deeply into the structure of the atom and play a game to better understand the relationship between protons, neutrons, electrons, and energy levels in atoms and their location in ...

A chemical element is one of those squares on the periodic table that adorns many a classroom ... are made of protons, neutrons and electrons. It is the number of protons, otherwise known as ...

The “lead” of a pencil is actually made of a substance called graphite which is made of carbon atoms. The picture shows a close-up of one carbon atom. A hydrogen atom has one proton as the nucleus and ...