Mars , also known as the Red Planet , has always fascinated humans. Its reddish color is due to iron oxide , or rust, on its surface. It is named after the Roman god of war because of its blood-red color. Interestingly, Mars has seasons just like Earth, but they are twice as long! Olympus Mons is about 13 miles high, which is three times taller than Mount Everest. Mars has two small moons named Phobos and Deimos. Phobos means 'fear' and Deimos means 'terror' in Greek mythology.
These moons are thought to be captured asteroids from the asteroid belt. This canyon is about 2,500 miles long and four times deeper than the Grand Canyon . Scientists have found signs that liquid water may exist on Mars . This raises the possibility of finding life, or at least past life, on the planet . Mars' thin atmosphere is mostly carbon dioxide, making it hard to breathe for humans. Future missions to Mars plan to create habitats for humans to live and work there. These rovers help us understand the planet's history and geology . Mars is a cold desert with temperatures dropping as low as -195 degrees Fahrenheit. Despite its harsh conditions, Mars continues to be a target for space exploration . Who knows? One day, you might even get to visit the Red Planet ! 
