Add Yahoo as a preferred source to see more of our stories on Google. Many heavy atoms form from a supernova explosion, the remnants of which are shown in this image. NASA/ESA/Hubble Heritage Team ...

I love thinking about things I can’t see with just my eyes. Like the atoms that make up everything. I asked my friend Fred Gittes how to figure out the number of atoms in a leaf. He’s a physicist at ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Stephen L. Levy, Binghamton University, State University of New York (THE CONVERSATION ...