The planet is named after Mars, the Roman god of war. It was known to the ancient Greeks as Ares, their god of war.
Orbital distance 228 million km (141.8 million miles) 1.542AU.
Diameter 6,800km (4,226 miles)
Orbital period 686.97 days
Its surface temperature -63 to 20°C.
Mars has two moons Phobos and Deimos
A day on Mars is about 30 minutes longer than a day on Earth, like ours the planet has an atmosphere, seasons and polar ice caps.
Mars has many massive volcanoes and is home to Olympus Mons, the largest volcano in our solar system, it stands 21 km high (Everest is 9 km) and is 600 km across the base. (London to Edinburgh).
Mars has been explored more than any other foreign planet. The first spacecraft to land on Mars was the Russian ‘Mars 2’ in 1971.