Mars immigrant SMS

The world always seems to provide a stage for Musk to perform. In a few days, he will come to an amazing space dance, attracting spotlights from all over the world.

Just a few days ago, Musk had just experienced a big ups and downs in his life. "Daqi" was named the person of the year in 20021by Time magazine, and was later named an academician by the American Academy of Engineering. Rhoda is the 36th batch of 49 satellite chains just launched by Space Exploration Technology Company, and 40 satellites were destroyed by electromagnetic storm, which cast a shadow over the satellite chain plan.

Musk seems to be neither immersed in the joy of satisfaction nor knocked down by the fall of the satellite. The news that 40 satellites were scrapped was only released 1 day. On February, 2022 1 1 day, Beijing time, he made a stunning appearance in Boca Chica, Texas, USA, held a press conference about the future destiny of mankind, and announced the new plan of this giant starship ambitiously.

Therefore, this real-life version of "Iron Man" is by no means a hollow reputation. Now I will capture some highlights of the meeting and share them with my friends.

Almost all people in the world are busy with how to live a better life on earth, specifically, how to improve the living environment, how to earn more money, and how to live longer and healthier. Musk, the world's richest man in the provincial party Committee, sold his last property and became a "proletariat" renting a house. He shouted again and again, immigrate to Mars! Immigration to Mars!

Therefore, many people think that Musk is an alternative and even think that he may be an alien. For what Musk did, some people were excited, some people were confused, and some people sneered.

Exciters believe that due to Musk's efforts, their sci-fi and dreams seem to be gradually or faster becoming a reality; Confused people think that humans have not even solved the problems on earth, so they talk about Mars. This is improper, ambitious and even a waste of resources.

Some people even ridiculed that it is a gimmick for human beings to live on Mars. Musk tried to create a concept to circle money. There are even conspiracy theorists who believe that there is a shadow of a big country behind him. Going to Mars is a big conspiracy to provoke a world space race and make other countries poor so that they can profit from it.

Not long ago, some people said that humans could not even travel to Mount Everest. Mars is much worse than Mount Everest. How can it be suitable for human habitation? Let's talk about when there is a canteen on Mount Everest.

However, at this conference, Musk still stubbornly adhered to the dream of Martian immigrants. He believes that the development of Mars is not regardless of the earth. He totally agrees that people will use more than 99% resources to solve problems on the earth, but they must use less than 65,438+0% resources to solve problems outside the earth.

He said that the annual budget allocated by the United States to NASA only accounts for 0.35% of the fiscal revenue, and he thinks that it is a little less and it is more appropriate to reach 0.5%.

He insists on what has always been said: human beings must become a multi-planet species, and in the long run, human beings will eventually fly out of the solar system, which is a necessary condition for human survival and continuation. The sooner human interstellar migration, the better, because there is great uncertainty about whether these human eggs can survive on the earth. No one knows that when the sun suddenly gets angry or an asteroid hits the earth, human beings will become extinct.

If humans have branches on other planets, the probability of extinction will be even smaller. Therefore, we should not only consider the immediate interests, but also explore something. We must go beyond the goal of the earth, look at the outside world, and then find the answer to where we humans come from and where we will go.

Musk reiterated his plan to build a city on Mars and sent 65,438+0,000 people to Mars. But he also said that the biggest selling point of his Mars program is that it is very difficult and even dangerous to go to Mars, and you may die.

In order to send humans to Mars, it needs good transport capacity, and the birth of starships is to solve this transport capacity. Musk calculated the rapid reusability of super boosters (rockets) and starships developed by Space Exploration Technologies. The interval between repeated use of the super booster is only 1 hour, and it takes only 6 minutes from ignition to landing. Climbing is the main task in the first 2 minutes, and the recovery is completed by autonomous landing in the last 4 minutes; The second-class spacecraft (which should be the refueling version of the starship) must circle the earth at least once, and the recovery time is 6~8 hours.

We witnessed how space exploration technology company recycled rockets and witnessed the explosion scene of starship model recycling. People described it as Musk's firecrackers or fireworks, but they all succeeded in the end. Just last May, after Musk's starship model exploded four times, the SN 15 starship finally returned smoothly and stood firmly on the recycling platform.

Soon after, Musk began to assemble the SN20 starship for earth orbit test, with a height of about120m and a carrying capacity of100t. Magnificent and heroic standing in the launch site has attracted worldwide attention.

Shortly after this, Musk's starship recycling plan took on new tricks. In order to reuse rockets and spacecraft quickly, Space Exploration Technology Company installed a pair of mechanical arms on the launch tower. When the rocket body or spacecraft returns, the pair of mechanical arms will firmly fix them in the air without worrying about falling unsteadily and exploding again.

Musk humorously called these mechanical arms "China chopsticks". Judging from the promotional video issued by Space Exploration Technology Company, these chopsticks are so magical. When the rocket body or starship descends slowly from the reverse engine, chopsticks will hold the rocket body or starship stably at the right time and quickly put them back in place and assemble them. They will be re-launched after refueling.

Musk claimed that the launch target of the future starship is that the super-heavy rocket can be reused every hour, the starship can be reused every 6-8 hours, and the long-distance starship can refuel in orbit for only 30 minutes; In this way, the starship will become the best and most efficient launch system ever, because it can be reused completely.

Musk claims that the launch cost of his overweight rocket is only 5~ 10% of Saturn V, but the thrust and load are at least twice that of Saturn V; In the next two to three years, the cost of each launch of the starship will be less than $6.5438+million, and it can be as low as $6.5438+million in a few years.

Musk's confidence comes from a pair of "chopsticks" developed by Space Exploration Technology Company. He called this "chopstick" firing method zero. The whole starship launch system is composed of three stages, the zero stage is a combined launcher integrating launch and recovery, the first stage is a super rocket, and the second stage is a starship. This may also include the fact that the whole launch process has achieved the goal of zero loss of the "Arrow" spacecraft.

This fantasy science fiction "Chopsticks" launcher only took 13 months from design to experiment success, which is really unbelievable in efficiency and speed. According to this capacity, a second-class starship can fly three times a day, so that at least 60 thousand tons of materials can be put into orbit a year.

Compared with the common rockets or spaceships in the world at present, this is simply magical and frightening.

Future starships will be launched by super-heavy rockets, which are usually called boosters. This rocket is 9 meters in diameter and 69 meters in height. It is equipped with 33 version 2.0 Raptor engines, loaded with 3,400 tons of propellant, which can generate 7,590 tons of thrust, which is 2.23 times that of Saturn V. The super-heavy rocket will return and recycle after putting the starship into orbit.

The starship is 9 meters in diameter and 50 meters high. It is equipped with nine Raptor engines, including three sea-level versions and six vacuum versions. It is loaded with 1.200 tons of propellant, resulting in 1.500 tons of thrust and 1.500 tons of effective transportation capacity. The exploration spacecraft can stay in orbit for a long time.

It can be seen that the ultra-heavy rocket and the starship are assembled into 1 19 meters.

The spacecraft that refuels the starship in orbit is called the refueling version of the starship. Its appearance is similar to that of a long-range starship, and it can carry 200 tons of propellant. This short-range spacecraft will be used repeatedly to travel to and from the surface and near-earth orbit.

Raptor engine version 2.0 is developed and improved on the basis of version 1.0. The thrust of 1.0 version is increased to 230 tons, and the manufacturing cost is reduced by half. Musk said that in the future, the thrust of the Raptor engine can be increased to 250 tons, and the cost will be further reduced. The success of version 2.0 Raptor series engine will become the first full-flow staged combustion rocket engine in the world to reach Earth orbit.