This is a one-way ticket to Mars! Then why can't you go back to Mars?

Man landed on the moon 50 years ago and can return from the moon. So, can humans land on Mars and return to Earth safely? But scientists tell us that with our current technology, we can't return to Earth from Mars. In other words, if we land on Mars now, it can only be a one-way ticket, and the astronauts will stay on Mars and cannot return to Earth. Why is this? Let's listen to the explanation of scientists.

Maybe many people don't understand that going to the moon can achieve round trip, why not Mars? The gravity of the moon is only one-sixth of that of the earth, and the moon is very small. As long as the aircraft is generally boosted, it can get rid of the gravity of the moon and enter space. Moreover, the moon is very close to the earth. After entering space from the moon, it can go to the International Space Station for replenishment and rest, and then return to Earth.

Although the mass of Mars is not as big as that of the Earth, its gravity is equivalent to one third of that of the Earth, and it takes a lot of thrust to enter space from the surface of Mars. Going into space needs the help of rockets, and Mars is far from the earth.

After our spaceship from Earth to Mars landed on Mars, it needed a lot of booster fuel to return to Earth. Some people may say that it is feasible to transport fuel from the earth, but the cost is too high. For example, launching a spacecraft into space on the earth requires 632 kilograms of fuel per kilogram of mass, while launching from Mars requires more than 10 times of fuel per kilogram of mass, which is unbearable for human beings.

Therefore, scientists suggest that the best way for the spacecraft to land on Mars and return to Earth is to use local materials, mine them on Mars, and then convert them into materials and fuel needed by rockets. To achieve this, it is necessary to send mining equipment and other related equipment to Mars. However, these mining equipment and other equipment are heavy. Although it is feasible in theory, it is very difficult to realize it with current technology.

Moreover, the distance from the earth to Mars is not short. At present, it takes about half a year for a spacecraft to travel from Earth to Mars. During this period, it is also a serious problem to maintain the materials needed by the unit, and it is even more difficult to return the materials needed.

Therefore, this is also the reason why humans have explored Mars for many years and still have no manned landing on Mars. It is relatively easy to realize a one-way manned ticket to Mars, but now it is impossible to go back and needs more advanced technology.

An important reason that restricts human beings from going back and forth to Mars is the engine. If humans can develop a spaceship that can go into space without rocket propulsion, it will be much easier to land on Mars and then return to Earth. However, if there is no rocket propulsion, it is impossible to let the spacecraft go into space by relying on the current engine and fuel. We need more powerful fuel engines, such as nuclear-powered engines.

If human beings fully master controlled nuclear fusion technology and develop a real nuclear fusion engine, they can get rid of the gravity of the earth and enter space with its powerful power, and the speed of spacecraft sailing in the universe will be greatly improved. It may only take about a month to get from the earth to Mars. At this time, perhaps human civilization can really enter the interstellar civilization, and can freely explore the planets in the solar system. It will be very easy to return to Earth from Mars.

Besides mastering controlled nuclear fusion's technology, there is a more powerful technology. If the research is successful, it will be even more remarkable. This technology is anti-gravity technology. Those UFOs that humans have witnessed can fly silently and freely, with extremely high speed. These UFOs may use anti-gravity technology.

Anti-gravity technology can ignore the gravity of the planet, and the spacecraft inside the planet is equivalent to the space environment. With the help of anti-gravity technology, you can easily get rid of the gravity of the planet and enter space without strong boosting force, and the speed of sailing in space will be faster, reaching the sub-light speed or even the light speed. This is an epoch-making technology and an important symbol of whether a civilization is truly powerful.

Anti-gravity technology can also achieve the same gravity environment inside the spacecraft as the earth, so that people's comfort will be greatly improved and the safety of the spacecraft will be greatly improved. The spaceship at this time is a real interstellar spaceship. Unlike this spaceship, it has weightlessness and is inconvenient to do anything.

It is not so easy to achieve the breakthrough of the above two technologies. I believe that with the continuous efforts of scientists, human beings will be able to master controlled nuclear fusion technology and anti-gravity technology in the future. However, scientists plan to achieve manned landing on Mars in the next 20 years, and then return to Earth from Mars. It is estimated that we still have to work hard on rocket fuel.

Scientists plan to build a base on Mars in the future and then transport some related equipment to Mars. After Mars has a base, it can be mined and smelted on Mars to make rockets. In this way, the spacecraft can use these rockets when it returns to Earth after landing on Mars. I believe that Mars will become the second home of mankind in the future, and friends may have the opportunity to travel to Mars or immigrate to Mars.