Somehow, even without silicon, this star was surrounded by dust. The dust grains were made almost entirely of iron. This has ...

This post is the first in a three-part series on how living creatures use the elements of the periodic table. Learn more about the elements on NOVA's two-hour special, "Hunting The Elements." When you ...

Foremost among silicon's distinguishing features is that, quite simply, there is a hell of a lot of it. After oxygen, it's the second most abundant element in the Earth's crust -- but don't expect to ...