Mars

Mars is the fourth closest planet from the Sun. This planet is known as the red planet because of the reddish appearance. From the latest research, the ice blocks concluded ever present on Mars. The evidence found indicates that in the past there is a cold ocean on the planet.

Martian north pole. Photo: www.nasa.gov

Photos surface of Mars robotic explorers enshrined by Viking 1 in 1996. Photo: www.nasa.gov

Photos surface of Mars, shot by NASA's Phoenix Mars explorer robots, October 7, 2008. Photo: www.nasa.gov

Mars photo, taken from a distance of 5.5 million kilometers by the Mars Express spacecraft, December 18, 2003. Photo: apod.nasa.gov

Mars rocks that reveal the presence of ancient water. Photo: www.nasa.gov

Source: Vivanews.com