Mars is the 4th planet from the Sun in the Solar System. Named after the Roman god of war, it is often described "Red Planet" as the iron oxide prevalent on its surface gives it a reddish look.
"Seventh from Sun"
Uranus is the seventh planet from the Sun. It has the third-largest planetary radius and fourth-largest planetary mass in the Solar System. It is named after the ancient Greek deity of the sky Uranus.