The Planet Mars is the fourth planet from the Sun. Mars is a cold Sub-Terran sized non-Earthlike Planet with a thin toxic atmosphere. Mars has an iron core and silicon crust with low gravity. Mars has a rocky desert surface with sandy, cratered, and mountainous terrain. Mars has no known life.
Mars is a good candidate for human colonization. Several companies and organizations are committed to placing real colonies on Mars in the near future. They include SpaceX, Blue Origin, Lockheed Martin, and The Mars Society.
Can you breathe the air on Mars?
Can you live on Mars?
Mars Formation Theory
Mars Surface Geology
Mars Surface Features
Mars Eploration Missions
1M No. 1 Mars Flyby - Launch Failure (Soviet Union)
October 10, 1960 (Failure)
Mariner 4 Mars Flyby - Mission Duration 3 Years (United States)
November 28, 1964 (Successful)
Mariner 6 Mas Flyby - Mission Duration 3 Years (United States)
February 25, 1969 (Successful)