Now you know that atoms are really small and that there are huge numbers of them, but here are a few other atom facts you might find interesting ... but most came from exploding and colliding stars.

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 ...

In ancient Greece, most people thought that matter was made up of combinations ... particles came straight back off the foil Rutherford had discovered the nuclear atom, a small, positively-charged ...