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Mars is the fourth planet from the sun and is approximately 141 million miles from the sun. It is slightly larger than Earth but has lower gravity, with gravity about 37% of Earth's. The temperature on Mars ranges from -225 to 63 degrees Fahrenheit. Mars is red in color and has mountains, volcanoes, craters and dried-up river beds. It has a thin atmosphere composed mainly of carbon dioxide with some nitrogen and argon. Mars has two moons named Phobos and Deimos and has been explored by numerous space missions, including the Mars Odyssey. While there is evidence of ancient water on Mars, life does not exist there currently likely due to the lack of liquid water.











