Stars and galaxies make up much of the universe's ordinary, observable matter. But for decades, scientists have wrestled with ...

Cosmic rays are made primarily of protons with a few electrons sprinkled in, and they can reach energies even higher than ...

Chemistry is a branch of science that involves the study of the composition, structure and properties of matter. Often known as the central science, it is a creative discipline chiefly concerned with ...

Materials chemistry involves the use of chemistry for the design and synthesis of materials with interesting or potentially useful physical characteristics, such as magnetic, optical, structural or ...