Trivia: Mars appears to be what color?
Blue
Green
Red
White
Correct Answer: Red
So why is this answer correct? : Mars is known as the “red planet” because of its striking reddish hue caused by iron oxide particles on the planet’s surface. (Iron oxide is the same compound that makes blood red.) The sky on Mars often looks pink or light orange because the dust from the red soil blows into the planet’s thin atmosphere.