A newly published study notes that the moon is "rusting," leaving experts perplexed by the discovery. The research, published in Science Advances, notes that the rust may be a result of water ...

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 ...

If you own guns long enough, you eventually see it: that ugly orange fuzz creeping across a slide, a barrel, or a set of sights you really like. Rust feels like it appears overnight. In reality, the ...