The question is not whether humans can land on Mars, but when.

As early as more than a century ago, in science fiction, humans began to walk on Mars, but until today this is only an idea. But many people are very determined.

Believe it or not, the question is not whether humans can land on Mars, but when and how to get there. So far, no one is sure how to land on Mars most conveniently and with the least effort. It is estimated that it will cost 60 billion dollars or more for humans to land on Mars. But Robert, president of the Mars Society? Zublin thinks this figure should be $30-40 billion, which is equivalent to the cost of Apollo's moon landing program. Zublin published a book called Migration to Mars, which outlined the grand blueprint for human settlement on Mars.

Why do humans always yearn for Mars? Because according to the current observation, Mars is the most likely place to become the second home of mankind. Although the temperature on Mars is minus 200℃, the environment on Mars is the most similar to that on Earth among all the planets in the solar system. Mars is about half the diameter of the earth, with one third of the earth's gravity and one percent of the atmospheric concentration. Most importantly, the probe found water under the frozen poles and the surface of Mars. Every two years, Mars will approach the Earth. This summer, Mars came to a place 55.76 million kilometers away from the Earth, which is the closest to the Earth in 60,000 years.

Zublin said: "People really want to know whether there is life outside the earth, and Mars may be the key to solve this problem. Even if only microbes in the original state can be found on Mars, it means that human-like life does not only exist on the earth. "