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 CuriousKidsUS@theconversation.com. What is rust? – Henry E., age 13, Boston, ...

During every scene of this western, I couldn’t stop thinking about the film’s cinematographer, Halyna Hutchins, who was killed on set in an entirely preventable tragedy. By Manohla Dargis When you ...

Add Yahoo as a preferred source to see more of our stories on Google. Imagine leaving your shiny metal bicycle outside in the rain. As water pools on its surfaces, oxygen from the air lingers nearby, ...

Imagine leaving your shiny metal bicycle outside in the rain. As water pools on its surfaces, oxygen from the air lingers nearby, and together they begin to quietly attack the metal. The iron in the ...