Anyone who has taken chemistry in high school knows that the elements that make up water are two hydrogen atoms and one oxygen atom. With a little electricity, we can split up the atoms, and voila!

The question of where atoms come from requires a lot of physics to be answered completely – and even then, physicists only have good guesses to explain how some atoms are formed.

An atom consists of a heavy center, called the nucleus, made of particles called protons and neutrons. An atom has lighter ...

Ahh, hydrogen—the simplest and most abundant element in the universe. Nearly three-quarters of the mass in the entire observable universe is believed to be made up of it.

H2O may be a renewable energy source, but the current hydrogen used to power hydrogen fuel cell vehicles is a nonrenewable natural gas that actually creates enormous CO2 emissions. It's a catch 22 ...