A project to map galaxies across the universe may have spied cracks in the foundation of our understanding of the cosmos.

Spectroscopy is a key tool for identifying chemical compounds and analyzing molecular structures. Learn how to read and ...

ACS Kids Zones are free public events featuring themed facilitator-supported activities, for children and their families. ACS members, including local chemists, college chemistry students, in addition ...

Known as the cosmic microwave background, the microwaves are a relic from a time when the universe was first cooling down ...

Established in 1931, the Gemological Institute of America (GIA) is the world’s foremost authority on diamonds, colored stones, and pearls. A public benefit, nonprofit institute, GIA is the leading ...