As the famous theoretical physicist once saidStephen Hawking, you and I live on an unremarkable planet that revolves around an unremarkable star. Nevertheless, we have a chance to know the universe. That's what NASA engineers are doing. Remember the Parker Solar Probe, which goes straight to the sun? At the moment, the probe is located at a distance of 24 million kilometers from the Sun, which is closer than Mercury. In the future, the device will go through the outer atmosphere of the star and will be exposed to temperatures exceeding 1 million degrees Celsius. Despite the fact that the probe’s journey lasts only a year, the data that he shared with the researchers turned out to be amazing. Scientists note that the probe first managed to examine our native star from such a close distance.
Surely there will be no one among youset off on a journey straight to the sun. Therefore, NASA experts dressed the device accordingly. Parker is equipped with a custom-made shield to protect scientific instruments and systems, as well as tubes with running water for cooling. The temperature inside the device is 26 degrees Celsius. Since launching last summer, Parker has made three orbits around the Sun, but it still has a long way to go in the next five years.
You will find out even more amazing facts about the Sun and other stars of the Milky Way on our channel in Yandex.Zen
What do we know about a star in the center of the solar system?
Since Copernicus redrawn the map of space,scientists approached the very heart of the solar system. First, using telescopes, and then satellites and spacecraft. They managed to learn about nuclear fusion, the star-feed, and countless other worlds that revolve around distant stars. It may seem that we know the Sun well, but much about the luminary that gave us life remains unknown. We still do not know why the outer atmosphere of the Sun is the corona, so hot and why the solar wind breaks out of it. These are just some of the questions that you and I have yet to find answers to.
Researchers from NASA published the firstresults based on data received from a Parker probe in early December. According to the first four works published in the journal Nature, the solar corona releases powerful streams of high-energy particles, known as the solar wind, which can be observed throughout the solar system and far beyond Pluto. The data show that the solar wind is much more turbulent near the Sun than in the vicinity of our planet, at a distance of tens of millions of kilometers. Researchers also found that shifts in the Sun's magnetic field accelerate particles "flowing" from the Sun much faster than any of their models predicted. Moreover, near the surface of a star, its magnetic field rotates 180 degrees, thereby accelerating the solar wind to record speeds.
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Noteworthy is the fact that researcherscould not get such detailed data by studying a star from the surface of the planet. Gradually approaching the Sun, Parker performs the most complicated robotic space exploration in history, because if you think carefully, it is much more difficult to reach the Sun than to leave the star system. Recall that at the beginning of this year we told you about the records of the NASA space probe. We hope that in the future the results will help researchers better understand both the life cycle of the Sun and the evolution of stars.