One of the biggest mysteries of the universe is the sun. With modern technology, human society tried to discover all the unknown facts about it.
Before the invention of spacecraft, the sun was only a glowing disk to the people of the earth. But now, NASA scientists discover many unknown mysteries of the sun and the solar system.
With powerful satellite system, NASA continuously capturies pictures of the sun's magnetic field.
The Solar Dynamics Observatory of NASA captured images of the sun's magnetic field last Sep. 28-29. The SDO is the most advanced spacecraft of NASA. These images define some unknown features of the sun's magnetic field.
It was difficult to understand completely the nature of the solar system. After continuous exploration, NASA scientists proved one thing - that the magnetic field is the ultimate source of all activities of the unique solar system, from the explosion on the sun to the auroras and radiation.
Extensive researches revealed that the plasma is the key material of the sun. It is a gaseous state in which ions and electrons are staying separately to create a uniquely hot state of charged particles.
When there is a movement between these charged particles, then the inner magnetic field is naturally created. Plasma creates a complex system which produces a lot of heat. This leads to the nuclear fusion in the sun and creates its ultimate magnetic field. This system is called solar dynamo.
Now with the beautiful images, scientists can explore the changes in the magnetic field and reveals the continuous movement outside and inside the sun. The image clearly shows how the changes are happening near the glaring bright spots on the sun. These regions are magnetically the most active regions.
Potential Field Source Surface or the PFSS is the key source to create the essential magnetic map. The pictures of the magnetic field are captured through the ultraviolet wavelengths.
