Why is Mars red?

Why is Mars red?

Professor Gizmo (Amazing Science Presentations) gives expert video advice on: Why do we need to wear a space suit in space?; Why do things float around in space?; Why do stars twinkle? and more...

Mars is basically red because it's really rusty, and it's old is not the answer. Mars is actually red because of the type of rock that's on the surface, and that it has a lot of iron in it and it gives that effect of this red look. It's not really rusty.