20 19 has passed, do you still remember those big events in space exploration?

Today I'm going to write a New Year article, starting from 20 19 and ending in 2020. I wish all my friends a happy New Year. 20 19 has many memorable space exploration events, breakthroughs in space field, astronomical observations, etc. , just to name a few.

The farthest celestial body detected by human beings

When we describe the distance, we all like to use the idiom Tianya Haijiao. It happens that there is a celestial body in the solar system called Tianya Haijiao, which is an asteroid located in the Kuiper Belt, 6.4 billion kilometers away from us. The New Horizon probe flew over this asteroid at close range on June+10/October 1 day, 65438, 2009, and photographed it. This asteroid was first discovered by the Hubble Space Telescope. In June this year, NASA officially named it "Rocos" with the number of 20 14 MU69.

Man made a soft landing on the back of the moon for the first time

Speaking of the moon, people still know a lot about it, and the time when people began to look up at the moon cannot be traced back, but the field exploration of the moon began in the middle of last century. Apollo 1969+0 1 successfully landed on the front of the moon, and Armstrong left the first human footprint on the surface of the moon, which is also the farthest footprint of human civilization so far. The former Soviet Union and the United States have done a lot of exploration work on the moon in the last century.

In 2065438+20091October 3, 65438+2009, China's Chang 'e-4 probe successfully landed safely in the Von Kamen crater in aitken Basin, Antarctica, which was the first time that human beings launched probes to the back of the moon. At present, Chang 'e IV and Yutu II are still in the mission.

Uncover the black hole

Black hole is a special celestial body studied by Einstein's general theory of relativity. The field equation of general relativity has a special solution to support its existence. But because of its nature, we can't directly observe the existence of black holes, and we can only indirectly prove the existence of black holes through some phenomena.

The photo above is the first black hole photo in human history. It is a supermassive black hole in the center of the Virgo elliptical galaxy M87, with a mass of 6.5 billion times that of the sun and a distance of 55 million light years from the Earth.

Mining on asteroids and returning.

Japan's Hayabusa-2 asteroid probe has collected samples of the Dragon Palace asteroid and is now on its way home. It is expected that the sample will be brought back to Earth by the end of 2020.

Finally, China's high-thrust launch vehicle appeared.

At 20: 45 on February 27th, 65438, China Long March V rocket was successfully launched from Wenchang launch site, which proved that the success of Long March V laid a solid foundation for space exploration in the next few years. China needs it to retrieve samples from the moon, explore Mars this year, launch and assemble an autonomous space station.

It can be said that China's space exploration on 20 19 made a very good start, and of course it also had a good ending. Come on, China of the future!

Text/Du Ruo, image source network invasion and deletion.

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