For centuries, the quest for new elements was a driving force in many scientific disciplines. Understanding an atom’s structure and the development of nuclear science allowed scientists to accomplish ...

It is tempting to think that some materials are always heavier than other materials. For example, someone might say that metal is heavier than air. But it depends on how much of each material there is ...

Scientists are showing renewed interest in studying space objects that may contain never-before-seen heavy elements, such as the asteroid 33 Polyhymnia. The asteroid appears to be denser than any ...