When did humans go to Mars, and did humans ever go to Mars?

On a summer night, looking up at the same starry sky, the ancients of thousands of years ago painted splendid mythological stories, while we are more thinking about when to land on Mars, or how to travel interstellarly. In fact, this is only a small microcosm of the scientific and technological progress in the short history of human civilization. After hundreds of thousands of years of accumulation of human evolution, all aspects of human beings have undergone earth-shaking changes, and today, human civilization is leaping forward at an indescribable speed.

As a person who believes in science, I have never doubted the inexhaustibility of human wisdom, and it is exciting to imagine the future of human life. Based on the rapid development of science and technology in the last 100 years, I have reason to believe that our lives will become unimaginably better in the next 100 years. Advances in medicine may eradicate disease forever; A deep understanding of genes will make it possible for us to create a perfect life; The development of electronic technology will liberate us from busy work, and "only do what you like" is no longer a dream ......All of this is so wonderful, such a world is the dream that many idealists have pursued for thousands of years, and he is indeed becoming a reality step by step.

In the face of this, everyone has enough reason to cheer and be excited.

The future is beautiful enough to be desirable, but the reality still reveals a hint of worry. The brilliant minds of human beings can lift rockets into the air and divert rivers, but many people still seem to fail to recognize the most basic issues: freedom, equality, and love.

Looking at the world, ethnicity, religion, and ideology still lead many people to be hostile to each other; For the sake of profit, war is still a firm choice for some; The unlimited expansion of power has also led to exploitation and oppression rampant ...... in some countriesIt seems that this reality will not change in a short period of time, and some people's understanding does not seem to have developed in tandem with wisdom, and they are still stuck in the animal nature of "the law of the jungle", and have not bathed in the light of civilization that has been precipitated for thousands of years. When people of good will shake their heads and sigh at some things happening in the real society around them, can they ever think that terrorism is not a source of water, social unrest is not without a cause, and that silt will eventually erupt, and today's technology makes construction easier and destruction as easy. The misdeeds of a few people may eventually lead to the stagnation or even destruction of human civilization.

This outcome is a bit pessimistic, but it is really not impossible.

Whether to survive and continue the journey of great technological progress, or to destroy, follow the dinosaurs into the museum's shop. As ordinary members of the human race, it seems that we do not have the right to choose. In fact, the right to choose is in the hands of each of us, as long as each of us has this belief in our hearts:

"Humanity" is our common title, and there is no distinction between you, me and him in the face of a common destiny. Then we will undoubtedly still be on the road of incomparably beautiful road, and no difficulty can stop it.

When will humans land on Mars?

People haven't been there, but the flying machines made by people have been there many times.

Human exploration of Mars:

China's first Mars exploration mission was officially approved in 2016, and it is planned to orbit, land and patrol Mars through a single mission, carry out global and comprehensive orbiting exploration of Mars, and carry out regional patrol exploration on the surface of Mars. The Tianwen-1 probe consists of an orbiter and a landing rover, including the Zhurong rover and the entry module.

On February 24, 2021, the Tianwen-1 probe successfully implemented the third near-fire braking, and after entering the Mars parking orbit with a period of 2 Martian days, it carried out global remote sensing exploration of Mars, and conducted a detailed investigation of the pre-selected landing area, and detected and analyzed the terrain and landform, sand and dust weather, etc., to prepare for the landing on Mars.

During the implementation of the mission, the China National Space Administration (CNSA) has carried out relevant project cooperation with ESA, international space organizations such as ESA, Argentina, France, Austria and other national space agencies. At present, the probe has been in space for 295 days, about 100 million kilometers from the Earth.

Mars exploration is risky and difficult, and the exploration mission faces challenges such as the interplanetary space environment, the thin atmosphere of Mars, and the terrain and landform of the fire surface, and at the same time, due to the influence of long-distance and long-term delay, there are difficulties in the landing stage, such as uncertain environment, complex landing procedures, and inability to intervene on the ground.

The Tianwen-1 mission has made breakthroughs in key technologies such as the launch of the second cosmic velocity, interplanetary flight, TT&C communication, and soft landing of extraterrestrial planets, and achieved China's first extraterrestrial planet landing, which is another milestone of great significance in the development of China's aerospace industry.

It will take about a year for a human spacecraft to fly to Mars at the earliest. Unlike the lunar landing, the 380,000-kilometer Earth-Moon flight takes only a few days, and Mars is 50 million kilometers away from the Earth and 400 million kilometers away, and it takes more than two years to make a round trip. The current record for the longest continuous space flight is 438 days on the space station.

Traveling to and from Mars not only exceeds the limit of human space stay so far, but also completes many complex tasks such as landing on Mars, which tests the physical and psychological adaptability of astronauts.

Plans for a landing on Mars

The United States, a space power, divided the human landing program on Mars into "three steps", and did not set a specific time for climbing Hulu, but it was roughly after 2030. During this time, NASA will operate in Earth-Moon space to develop and validate the capabilities needed for human exploration of Mars.

He said that at present, he has the technology and ability to launch, track, and control Mars probes and send them to Mars orbit for long-distance exploration of Mars. But for China's space development, it is believed that this kind of exploration or even the landing of an unmanned probe on Mars is not the most meaningful plan. Mars is the next destination for mankind in the Hood Group, and it is also a new starting point for future exploration of the solar system and even the stars.

As a space power that is making progress towards a space power, perhaps China does not have much need to compete with others for the duration and time of unmanned exploration of Mars, but should make good use of the platform of the manned space station and the harvest of the lunar exploration program, aiming at the most important and valuable exploration target such as the manned landing on Mars to accumulate capabilities.

The above content reference: People's Daily Online - People's ** Science and Technology Miscellaneous: What "posture" is appropriate to go to Mars.