A historical record of human exploration of space

How many of the 10 "first photos" in the history of human space exploration do you know?

Categories: Social and People's Livelihood.

Analysis: 1New Horizon will fly to Pluto to explore the farthest planet in the solar systemFor decades, humans have been sending various probes to explore the planets in the solar system, and now is the time to visit the most distant planet, Pluto.

The U.S. "New Horizon" probe is scheduled to be launched from the Kennedy Space Center with the help of a "Cosmos-5" rocket at 13 o'clock EST on the 17th (1 o'clock Beijing time on the 18th), starting a nine-year space journey.

2.Gravitation and cosmology.

Quantum theory and the theory of relativity are the two pillars of physics in the twentieth century, and they are also the most brilliant achievements of physics in the twentieth century. However, the progress of the general theory of relativity, which Einstein himself valued the most, was not satisfactory.

3.The "Courage" and "Opportunity" rovers landed on Mars and found evidence of waterOthers: aThe U.S. supersonic aircraft set a new record for flying at a speed of more than 10,000 kilometers per hour;

b.The Cassini spacecraft successfully entered the orbit of Saturn;

c.Scientists in South Korea and the United States used cloning technology to obtain human embryonic stem cells for the first time;

d.For the first time, scientists in the United States used nuclear magnetic resonance technology to observe a single electron;

e.The United States has developed large-scale hydrogen production technology using nuclear reactors;

f.Japan has developed the world's fastest optical communication technology;

g.The writer of the American Dry Grip discovered the most distant large body in the solar system;

h.Important progress has been made in the research of HIV antibodies;

i.Scientists in the United States have made molecular motors that can stop or pause.

During the Ming Dynasty, some people in China tried to use rockets to explore the universe, with the steam engine in the observation and thinking test, the use of more convenient and efficient fuel internal combustion engines were invented, people have the conditions to explore the universe, World War II, the main participating countries developed rockets, and used it to install warheads to make missiles for war, on October 4, 1957, the Soviet Union used the modified P 7 intercontinental missile modified rocket to send the world's first artificial earth satellite into space, April 12, 1961, The Soviet Union sent the spacecraft carrying the world's first cosmonaut Yuri Gagarin into space, after 1949, the Chinese ** carried out rocket and missile research on their own, in September 1958, China's first rocket Dongfang-1 was successfully launched in Xuanhua, Hebei, in April 1970, China's first satellite was successfully launched, considering the national economy and other reasons, when China decided to temporarily suspend manned space activities, after which military production satellites continued to be successfully launched, with the development of the economy, restarted manned space activities, In 2003, the first manned spacecraft was successfully launched, and China began lunar exploration activities and deep space exploration activities at the same time.

After World War II, the United States and the former Soviet Union continued to work on rockets and other space technologies on the basis of German research. By the 50s of the 20th century, various types of missiles developed by the United States and the former Soviet Union came out one after another, forming a missile system, and at the same time, it also accumulated experience in developing carrier rockets, and established industrial facilities that matched it and began to take shape.

On October 4, 1957, the former Soviet Union launched the world's first artificial Earth satellite into space with a modified P 7 intercontinental missile. In order to realize the desire of human beings to go to heaven, they must meet three conditions: first, they must have a powerful delivery vehicle, second, they must have an advanced spacecraft that can carry astronauts, and third, they must understand the impact of the high-altitude environment and the flight environment on the human body and find protective measures.

By the 50s of the 20 th century, the United States and the former Soviet Union had made great progress in these aspects, laying a solid technological foundation for manned space flight.

On 12 April 1961, the former Soviet Union was the first to launch the Vostok 1 spacecraft carrying the world's first cosmonaut, Yuri Gagarin, into orbit 181,327 kilometres above the ground. Yuri Gagarin's space flight fulfilled the long-cherished desire of mankind to fly and ushered in a new era of manned spaceflight.

On 20 July 1969, the "Apollo" lunar module landed safely in the "quiet sea" area of the moon, and American astronauts N. A. Armstrong and E. E. Aldrin landed on the moon, realizing mankind's dream of thousands of years, turning the myth of Chang'e to the moon into reality, and mankind's achievements in space exploration reached a new peak.

Since the successful launch of the first artificial satellite, human exploration of space has made rapid progress in less than half a century. From the application of artificial satellites to interstellar exploration, from lunar exploration to Mars, Saturn exploration programs to comet "deep impacts". By the end of 2004, countries around the world had carried out more than 4,000 space launches and sent more than 5,500 spacecraft of various types into space, and at present, there are more than 1,300 spacecraft still in orbit or in space.

So far, mankind has successfully developed three different manned spacecraft, including a manned spacecraft, a space station, and a space shuttle, sent more than 500 people into space, landed 12 people on the moon, and has begun to build a permanent manned space station.

Before Galileo, astronomy was basically the apotheosis of the stars, and since the heliocentrism, it can be regarded as truly entering the universe to explore.

There are so many unthinkable things in the universe that if prehistoric civilizations existed, they would not be able to draw such a line.