Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System, after Mercury. More

A Martian is a native inhabitant of the planet Mars. More

Mars and its moons have been a target for many spacecraft, with flyby, orbiter, lander and rover missions visiting the planet. More

The Mars Society is a volunteer-driven space-advocacy non-profit organization dedicated to promoting the human exploration and settlement of the planet Mars. More

The exploration of Mars is the study of Mars by spacecraft. More

A Martian meteorite is a rock that formed on the planet Mars and was then ejected from Mars by the impact of an asteroid or comet, and finally landed on the ... More

The flag of Mars is a tricolour used to represent the planet Mars, its exploration, and its eventual transformation into a more Earth-like world. More

Mars is the focus of much scientific study about possible human colonization. More