we need to adopt special

"The long march first step"

In real human before landing on Mars, similar trials will do much

Reporter: are Moscow for Mars 500 "test, how much can verify the real manned Mars flight?

ChenShanAn: "Mars 500" experimental simulation from earth flew to Mars, landing on Mars and return to earth in the whole process of total 5.2 days flying.

This is a very meaningful explorations, but is still part of simulation.

Didn't experiment simulating weightlessness environment and is in the ground static test bin, reflect not flight dynamics characteristic. Therefore, this test just miles long march first step. In real human before landing on Mars, similar trials will do much.

Reporter: for the space environmental simulation is very important?

ChenShanAn: yes, as mentioned above weightlessness environment, is very important.

Mankind from leaving earth, enter orbit, landing on Mars surface, again to return to earth, to undergo weightlessness, overweight and low gravity and so on many kinds of gravity environment, haunted by the variation of gravity of bitterness. These changes to the influence of human body, there is a lack of deeply studied in "Mars 500" trials nor corresponding simulation, but the future must be fully verified. Rovers', Mars clothing design and manufacture all want to adapt to the variation of gravity.

In addition, lunar found moon-dust is slight, easy lungs, protective measures, similar problems also existed on Mars.

Reporter: human 40 years ago landed on the moon, why to land on Mars seems still are65?

ChenShanAn: in 1969, the americans first left on the moon for human footprints. Now, many countries have proposed moon goals, but very difficult.

In contrast, to realize the goal of terengganu Mars is much more difficult, flight distance, flight time significantly extend. The moon is nearer to the earth about 38 million kilometers, 5 to 10 days, you will arrive, generally two weeks can perform a round-trip task. While Mars orbit shape for the ellipse, the nearest distance is about 50 million kilometers, the furthest distance is more than 4 million km. Even if choose carrying between, also want to two years.