Since the 20th century, there have been several proposed human missions to Mars both by government agencies and private companies.
Most of the human mission concepts as currently … 查看更多內容

Conditions on the surface of Mars are closer to the conditions on Earth in terms of temperature and sunlight than on any other planet or … 查看更多內容

Colonization of Mars would require a wide variety of equipment—both equipment to directly provide services to humans and production equipment used to produce food, propellant, water, energy and breathable oxygen—in order to support human … 查看更多內容

As with early colonies in the New World, economics would be a crucial aspect to a colony's success. The reduced gravity well of Mars and its … 查看更多內容

Gravity and size
The surface gravity of Mars is just 38% that of Earth. Although microgravity is known to cause health problems such as muscle loss and bone demineralization 查看更多內容

Interplanetary spaceflight
Mars requires less energy per unit mass (delta V) to reach from Earth than any planet except 查看更多內容

The path to a human colony could be prepared by robotic systems such as the Mars Exploration Rovers Spirit, Opportunity, 查看更多內容