Have an out of this world coloring pages with our free planet coloring pages. We have a bonus space coloring pages, and free ...

For example, it’s a dusty red color. But, new research from the European Space Agency is challenging humanity’s understanding of why Mars is called the Red Planet. “Mars is still the Red Planet.

He is now a research fellow at Brown University in the U.S. Origins of the Red Color Graphic showing how Mars turned from a grey, wet planet into a dusty red planet. From left to right, four steps are ...