Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to [email protected]. How is snow made? – Tenley, age 7, Rockford, ...

Bismuth is known for a few things: its low melting point, high density, and psychedelic hopper crystals. A literal deep-dive into any molten metal would be a terrible idea, regardless of low melting ...

Archaeologists have discovered hundreds of rare “rock crystal” quartz fragments in a ceremonial site in western England. This find suggests people in Neolithic times used them to decorate graves and ...