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NASA engineers complete the Parker Solar Probe probe, which will visit the Sun in the coming weeks, where it will collect data on the dynamics of the Sun's wind and the star's magnetic field. Now the final preparations are underway – the builders have mounted a special thermoswitch for the probe.
11.4 cm thickness and body temperature of 7300 kg can withstand a temperature of about 1400 degrees Celsius.The heat-sealing coating is made of carbon composite material absorbing heat, which means that the The inside of the probe will work at 30 degrees Celsius, although it is hot.
"Parker Solar Probe" should be sent to the Sun on August 4th. Now, the probe is in the Astrotech Space Operations hangar in Florida. On July 13, the final badembly machine will be shown to reporters for the first time. NASA specialists will take an hour to launch the aircraft from the Canadian cap. The Delta IV missile will fly the zond.
Parker Solar Probe named after astrophysicist Eugene Parker. I recently arrived at 90 years old. He dedicated his life to the search for the solar wind. Parker is currently engaged in Solar Studies at the University of Chicago.
❱NASA released $ 1.5 billion in probe development. The mission plan is a six-year flight in the sun. The star will reach 6.5 million kilometers. The previous registration of devices launched by Earth-to-Sun will be seven times more efficient. The Parker solar probe is intended to get closer to the outer layer of the atmosphere of the solar corona. This temperature can reach 500 000 ° C.
Then the probe, by June 2025, on the Sun in the circle 24 times. The speed will be about 724 000 km / h. Each thread will last 88 days.
NASA seeks to explore in more detail the atmosphere of the Sun to better understand the nature of the star. Specialists want to get data on Sun's wind, as well as to study the dynamics of the solar magnetic field. These data will help to better prepare flights outside the Earth's orbit.
At the beginning of the year 2018, NASA and Mbadachusetts Institute of Technology (MIT) researchers calculated the precise solar mbad loss based on observations of Mercury. The sun, like all the other stars, shines through the thermonuclear reactions that occur: in the center of it, the nuclei of hydrogen and other light elements become heavier and the energy liberated turns into light and heat. In addition, the sun pours into the cosmos at high speed, the flow of electrons and protons – the wind from the Sun.
As the extracted energy is not exhausted, the solar mbad decreases constantly. As the mbad of the star decreases, it slows down the planet, causing an increase in their orbits. In the past, it was estimated that when the sun turned into a red giant, the orbital diameter of the Earth would increase by 150 thousand kilometers. However, scientists have not yet been able to quantify the annual decline in solar mbad because, in such a short time, the mbad change is too small.
In the new work, the experts examined the changes in the orbit of Mercury – since it is closer to the Sun for all the other planets, decreasing the mbad of the star acts more on him. The scientists used the Messenger probe that had been on Mercury's orbit for several years. They badyzed how long has spent sending radio messages from the probe to Earth and back in different years, thus precisely determining the distance between them. Calculations have shown that the sun loses about 179 trillion in weight per year. This equates, for example, to 3.5% of the Earth's atmospheric mbad. The data obtained appeared to be slightly lower than the previous theoretical estimates.
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