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 ...

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

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 ...

Scientists have developed molecular devices that can switch roles, behaving as memory, logic, or learning elements within the ...