Now, he says, "our understanding of why Mars is red has been transformed." The new explanation for the reddish color – the rusty-colored dust known as ferrihydrite – also will help our ...

This can clog the teeth and make them blunt. Luckily, you can revive rusty metal files and sharpen them without a great deal ...

It’s just that our understanding of why Mars is red has been transformed." Mars is widely known for its iconic rusty red color — many people even refer to it as just the "Red Planet" — but ...