The earth spacecraft "touched" the sun for the first time, which is the fastest spacecraft of mankind so far, and will arrive at the periphery of the sun from June 5438 to February 2024. This coronal spacecraft is called "Parker", and the Earth spacecraft "touches" the sun for the first time.

Earth spacecraft "touched" the sun for the first time 1. According to the website of foreign media BreezyScroll 15, a NASA spacecraft officially "touched" the sun's atmosphere and sneaked into the undiscovered corona.

On Tuesday, scientists announced the news at a meeting of the American Geophysical Union.

In the seventh close contact between the spacecraft and the sun, the Parker solar probe passed through the corona. According to scientists, these data will take several months to arrive, and then it will take several months to confirm.

Nour Raouafi, a project scientist at Johns Hopkins University, called the news "very exciting".

The corona is where the solar activity takes place, because the sun lacks a solid surface. A close study of this area with strong magnetic field will help scientists better understand the solar burst that may destroy life on earth.

Parker solar probe was launched on 20 18. When it first crossed the rough and unbalanced boundary between the solar atmosphere and the outward solar wind, it was 8 miles (13 km) from the center of the sun. According to scientists, the spacecraft entered and exited the corona at least three times. There is a smooth transition every time.

Justin Caspar of the University of Michigan told reporters: "The first and most exciting time was that we stayed underwater for about five hours ... Now you may think that five hours sounds nothing." On the other hand, Parker runs very fast. At that time, he ran at a speed of 62 miles per second (100 km) and ran a long distance.

According to Raouafi, the corona looks darker than expected. Future coronal travel will help scientists better understand the origin of the solar wind, such as how it is heated and pushed into space.

According to preliminary data, the Parker solar probe may have hit the corona during its eighth close contact in August. But experts say further research is needed. Last month, it made its tenth close exploration.

Before completing its last orbit in 2025, Parker will continue to approach the sun and go deep into the corona.

The Earth spacecraft "touched" Sun 2 for the first time (Beijing time, August 12, 3: 3 p.m.1), and the world's first corona spacecraft was launched in Florida, USA, which opened the most deadly flight to the surface of the sun in human history.

This is the fastest spaceship ever (800 thousand kilometers per hour). It will reach the periphery of the sun in June 5438+February 2024, and spend the last 88 days of its life in the depths of its atmosphere until it burns like a fire and falls into the wave center of colorful streamers on the surface of the sun.

This coronal spacecraft is called "Parker" to commemorate American astrophysicist Eugene Parker, and was developed by NASA. This project is one of the "Living with Stars" projects.

"Parker" is the highest crystallization of space science and technology at present, with a top speed of 800,000 kilometers per hour. The flight time from Beijing to Chicago is 1 minute. This is the fastest spacecraft in human history.

The hull is only the size of a car and is equipped with five scientific instruments for measurement and sampling. It will use Venus as a gravity booster seven times and reach the outside of the solar atmosphere in June 5438+February 2024.

At that time, it will enter the last flight around the sun, go deep into the solar atmosphere and reach 6.44 million kilometers above the surface of the sun. This will be the closest distance that human science and technology can get close to the sun at present. Historically, humans have launched 15 solar detectors. At present, the closest to the surface of the sun is Apollo 2 launched by 1976, which is about 45 million kilometers away from the surface of the sun.

Under the impact of high temperature and radiation, "Parker" is expected to work for 88 days, and then it will become a meteor and fall into the vast sea of fire of the sun.

In order to ensure the completion of scientific research tasks, "Parker" assembled the most elite technology. The first is protection. It has a thermal protection system, which consists of a 2.4m graphite carbon fiber heat shield, two kinds of carbon composite materials and a special super-reflective coating. It can resist the high temperature of 1400 degrees Celsius and keep the interior of the spacecraft at room temperature. It is the most heat-resistant product in human history.

The second is power. A trip to the sun consumes 55 times as much energy as a trip to Mars, so Parker has a dual solar panel system. A large group of panels will be used for most of the journey, and the group will use it when it is close to the sun (specially designed liquid cooling system). In extreme high temperature environment, solar panels will be folded under the heat insulation board.

Parker's scientific research task is to study the corona-how the corona is heated, how the solar wind accelerates, the magnetic field structure on the surface of the sun, and the sources of other high-speed particles.

Because coronal mass ejection (solar wind explosion) will endanger satellite communication and power transmission on earth, it is of great benefit to the development of human science and technology to study its mystery.

The launch of "Parker" will open the era of astronomical navigation. In 2020, the European Space Agency will launch a solar orbiter, and the Daniel K. Inouye solar telescope will also land in Hawaii, where it will map the trajectory of the corona.

The Earth spacecraft "touched" Sun 3 for the first time, which was an incredible and historic first time. An artificial spaceship swooped down and came into close contact with the sun.

On April 28th, 20021,NASA's Parker Solar Probe actually flew into and passed through the sun's upper atmospheric corona. It not only tells the story vividly (which proves the efficacy of Parker's high-tech insulation device), but also carries out field measurements, providing us with a lot of unprecedented data about the core of the solar system.

Tomas Jun Erbuqin, an astrophysicist and deputy director of the Science Mission Bureau of NASA headquarters, said: "The' touching the sun' of Parker Solar Probe is an immortal moment of solar science and a truly extraordinary feat. This milestone not only gives us a deeper understanding of the evolution of the sun and its impact on the solar system, but also allows us to know more about other stars in the universe. "

Parker Solar Probe was launched in 20 18, and its main goal is to detect the corona. In the planned seven-year mission, it will approach the sun (or perihelion) for a total of 26 times, and use a total of 7 gravity-assisted actions from Venus to make it closer to the sun. The perihelion in April is the eighth and the first one to actually enter the corona.

In the solar atmosphere for nearly five hours, Parker measured the fluctuation of the solar magnetic field and sampled the particles. Previously, our estimation of these attributes mainly depended on external information.

Nour Raouafi, an astrophysicist in the Applied Physics Laboratory of Johns Hopkins University, is a scientist of the Parker Project. He said: "The Parker Solar Detector flew so close to the sun that now it can sense the corona, which is the dominant magnetic layer in the solar atmosphere, which we could not do before. We have seen evidence of the existence of the corona in magnetic field data, solar wind data and visual images. We can actually see the corona structure that can be observed when the spacecraft flies over the total solar eclipse. "