Mars
Mars is the 4th planet from the sun. Its reddish tinge comes from the planet's rich iron content in its soil. Mars is smaller than Earth and has two moons- Phobos and Deimos. Several space expeditions have flown to Mars to explore the possibility of past life.
Atmosphere: Similar to Venus, but the pressure and greenhouse gas affect on Mars is much, much lower. The atmosphere is thin and Mars has constant winds.
Surface: The surface of Mars is especially intriguing. The southern and northern hemispheres are entirely unique. The southern hemisphere is heavily cratered while the northern hemisphere has been smoothed by past volcanic flow. The largest mountain in our solar system is on Mars. There is also evidence of water beds and runoffs which could mean that Mars supported life at one point.
Interior: Astronomers are unsure of Mars' core. It is theorized that the core consists of iron, nickel and sulfur. There is no evidence of plate tectonics or a magnetic field, so Mars' core is most likely solid.
Picture from: http://wafflesatnoon.com/2012/09/28/do-cosmic-rays-from-mars-affect-cell-phones/
Atmosphere: Similar to Venus, but the pressure and greenhouse gas affect on Mars is much, much lower. The atmosphere is thin and Mars has constant winds.
Surface: The surface of Mars is especially intriguing. The southern and northern hemispheres are entirely unique. The southern hemisphere is heavily cratered while the northern hemisphere has been smoothed by past volcanic flow. The largest mountain in our solar system is on Mars. There is also evidence of water beds and runoffs which could mean that Mars supported life at one point.
Interior: Astronomers are unsure of Mars' core. It is theorized that the core consists of iron, nickel and sulfur. There is no evidence of plate tectonics or a magnetic field, so Mars' core is most likely solid.
Picture from: http://wafflesatnoon.com/2012/09/28/do-cosmic-rays-from-mars-affect-cell-phones/