On the edge of the solar system began to rise pressure
It is believed that in space there is nothing but a vacuum, cold and infinite emptiness galaxy far far away. However, this is not quite true. Of course, space is not full of life, but there is not a little interesting processes. The same cosmic radiation causes a lot of interesting processes. And for example, did you know that in space there is pressure? And scientists can even measure it, and this involved quite a long time. Only here a while back pressure on the boundary of our solar system began to grow. But how is this possible?
"Outer pressure" began to grow. But why?
Where the pressure is taken in space?
It's a pretty good question, because if we remember the physics course, then our planet atmospheric pressure is created by air molecules and other particles are attracted by gravity. Not the last role in the formation of the pressure is the presence of air and then at what height from the surface we measure it. The higher - so it is less. In space, as you know, almost none of it is not. Therefore, the pressure there is formed a little differently. Were you aware of the fact that the pressure is there in space? Write about it in our chat in the Telegram.
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In general, the "space pressure" created by ions, electrons and other elementary particles. These particles are heated and accelerated by the Sun create heliosphere. The heliosphere - is, to put it in simple words, a giant ball, which "suspended" the particles tend from the center to the periphery. The edge of the area, where the Sun's influence is overcome by the pressure of particles of other stars and interstellar space is a place where the ends of the solar magnetic influence. And there is created a pressure difference. And it can be measured. Using data obtained from NASA spacecraft "Voyager 1" and "Voyager 2", scientists have calculated the total pressure of the particles in the outer region of the solar system.
After analyzing the data known from previous studies, we found that the new pressure on the edge of the solar system is much more than what it was before - said Jamie Rankin, lead author of the new study, an astrophysicist at Princeton University in New Jersey. This suggests that there are some changes in our solar system that we do not know. And this requires further study. To fix this event was really unique time, because we see him as soon as the "Voyager 1" crossed the edge of the solar system.
Schematic representation of how the "Voyager" to measure the brightness
It is known that heliosphere located almost 9 billion miles (which is about 14, 5 billion kilometers) from the center of the solar system. Therefore, research in this area is quite difficult. The study of pressure and sound velocity in this region on the border of the solar system, according to scientists, can help us understand how the Sun affects the interstellar space. It not only informs us about our own solar system, but also the dynamics and development of other stars and planetary systems.