It's been long thought that Mars shines red due to the rusted iron minerals within the dust that covers the planet -- but a study published Tuesday in the journal Nature Communications suggests ...

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 ...

Q: I have a cast-iron skillet that I have been using for a few years. It has brown, rust-colored stains that don’t come off, no matter what I do.

Rust gathering on and staining cast iron pans is always a bother, but it turns out this surprisingly common household condiment can do the job well.