Probably the periodic table of antimatter—the anti–periodic table. Antimatter is the mirror image of the regular old matter all around us. Instead of our negatively charged electrons, there ...

IRA FLATOW, host: This is SCIENCE FRIDAY, I’m Ira Flatow, trying to overcome a bout of laryngitis so see if you can hang in there with me for this program. Our current ideas of the universe say ...

Not so much as the poster of this video found out, so he decided to create a periodic table rap of his own. Take a listen. The chemical rap was created by YouTube user "Oortkuiper" who writes ...

The periodic tables have different designs. This article will summarize for you periodic tables with real elements and unique ...

At the moment physicists are having enough difficulty just taming antihydrogen, the simplest possible anti-atom. Can we ever expect them to make a whole anti-periodic table?

Physicists have created the heaviest clumps of antimatter particles ever seen. Known as antihyperhydrogen-4, this strange stuff could help us solve some of the most puzzling physics mysteries.

Imagine that Superman's opposite-in-all-ways enemy, Bizarro, taught high-school chemistry. (Bizarro does enjoy inflicting punishment, after all ...) What sort of periodic table would hang on the wall ...