Bravely break through the seven levels of Mars, China’s spaceflight challenges hell-level difficulty
In the movies”Uncle Martin of Mars” and”The Martian”, the general appearance of Mars is depicted. Too cold, too hot, too high pressure or no atmosphere, the environment of our neighbors is too far from the earth, harsh reality shattered our dream of interstellar migration, as for the planets of other galaxies too far away from us, the nearest It will take a few light-years. With a spacecraft with a speed of more than ten kilometers per second, dozens of generations will not be able to fly there. Therefore, we still have to look back to the solar system. Fortunately, the universe still leaves us with a choice. It is silently waiting for us in space.