Mars is the Red Planet, but turns out the moon has the makings of a reddish cast, too. Yes, scientists have found rust on the moon. The question is: why?

The usually accepted view has been that iron will not rust unless carbonic acid is present. After a very careful investigation of the subject, I was led to the conclusion that provided iron ...

Iron present in exposed rocks reacts with this oxygen, and rust colors the planet red. While oxygen-loving organisms evolve in these changing conditions, oxygen-intolerant anaerobes survive only ...