The temperature on Mars can be as cold as North Pole.
Half the size of Earth.
Earth is the planet next to Mars.

Red Planet is what we call Mars.
Elon Musk is sending people to Mars one day.
Deimos is the biggest moon of Mars.

Phobos is the smallest moon of Mars with dark brown color.
Last landing on Mars was the Schiaparelli EDM.
Astronauts will be the first people to ever land on Mars.
Neptune is much, much bigger than Mars.
Exploration of Mars began in 1971.
There are seven Rovers roaming the rocky, red plains of Mars.