The planet Mars is named after the Roman god of war. Originally this planet was named Ares, for the Greek god of war, largely because of its blood-red color.Know More
When the Romans conquered Greece, they renamed all the planets for their own equivalent gods, including switching the name of Ares for their own Mars. As Western astronomy evolved, it was natural to retain the Greek and Roman names for the planets.
In 1873, American astronomer Asaph Hall discovered that Mars had two small satellites. He named them Phobos, or fear, and Deimos, or terror. These names were from the twin sons of the god Mars who drove his chariot into battle and who were his constant companions.Learn more about Ancient History
The force of gravity on the planet Mars is only about 38 percent as strong as that on Earth. Surface gravity on Mars is much weaker than that of Earth due to the planet's small size and relatively low mass.Full Answer >
The planet Mars completes its orbit of the sun in just under 687 Earth days. Mars orbits the sun much further away than Earth, and its longer year results from having to travel a greater distance.Full Answer >
The planet Mars is home to Olympus Mons, the tallest volcano in the solar system. Valles Marineris, also located on Mars, is the largest known canyon found on any planet within the solar system.Full Answer >
As of June of 2014, no astronauts have walked on the surface of the planet Mars. All of the space missions to Mars have been carried out by unmanned spacecraft.Full Answer >