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Mars is named for the Roman god of war. The ancient Greeks also named the planet after their god of war, Ares. Mars contains frozen water, and this water once flowed on the planet. More »

www.reference.com Science Astronomy Planets

Mars, the fourth planet from the sun, has interested people for thousands of years, according to BBC News. However, whereas the people of ancient Greece and Rome found Mars fascinating for its red color, people today are... More »

www.reference.com Science Astronomy Planets

Volcanoes form when molten rock from beneath Earth's surface erupts and solidifies on the surface. When beneath the ground, the molten rock is called magma. When it erupts, it is referred to as lava. With each eruption, ... More »

www.reference.com Science Earth Science Volcanoes
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Mars is 142 million miles from the Sun and takes 687 Earth days to complete one orbit around the sun, according to the National Aeronautics and Space Administration. The average surface temperature on Mars is -81 degrees... More »

www.reference.com Science Astronomy Planets

Mars, the fourth planet from the sun, has interested people for thousands of years, according to BBC News. However, whereas the people of ancient Greece and Rome found Mars fascinating for its red color, people today are... More »

www.reference.com Science Astronomy Planets

NASA's primary mission for Mars is the search for life and elements, such as water, that could support life. NASA got its first close-range pictures of Mars in 1965. As of 2015, robot vehicles continue to send valuable i... More »

www.reference.com Science Astronomy Planets

One of the most interesting facts about the planet Saturn is that the entire planet is surrounded by seven large rings that consist of various particles. Another fact is that Saturn has 53 known moons, and each has a con... More »

www.reference.com Science Astronomy Planets