People from cultures across the world have been looking at Mars since ancient times. Because it appears reddish, it has often been called the red planet. Your blood is also red because of a mixture of ...

People from cultures across the world have been looking at Mars since ancient times. Because it appears reddish, it has often been called the red planet. The English name for the planet comes from the ...

Mars isn't a bright, fire-engine red, but the iron oxide in its rocks makes it appear redder than other planets, especially from afar. When you purchase through links on our site, we may earn an ...