In the late 20th century, the Silicon Age transformed the world with the discovery and refinement of semiconductors that are the foundation of modern electronics. We are now in the era of advanced ...

You probably learned in high school chemistry class that core electrons don't participate in chemical bonding.

Research suggests some metals’ semicore electrons may be more active on Earth’s surface than previously thought.

Chemical fossils from 635-million-year-old rocks suggest sponges were among Earth’s first animals, reshaping the story of early life.