at the max planck institute for solar system research in gottingen scientists are studying coronal mass ejections or c m e's in particular they want to know why these solar eruptions occur with varying frequency over an eleven year cycle. we think they result from a dynamo inside the sun's out but we don't know exactly how it works. the sun is one hundred fifty million kilometers away and it's incredibly hot the temperature in the core reaches fifteen million degrees celsius as hydrogen nuclei combine to form helium this nuclear fusion has been the source of the sun's heat and light for more than four billion years. to us the sun looks like an evenly shaped ball but in fact it's a rotating and shape shifting gashes mass that generates a chaotic magnetic field individual magnetic field lines can be seen as loops towering up to eighty thousand kilometers above the surface. the field lines guide the motion of plasma and hot gases. the smoke for the magnetic field is constantly changing and twisting that means the magnetic field lines can cross each other that can cause the entire thing to

long as a helio seismologist he and his team at the max planck institute for solar system research study the oscillations on the surface of the sun these reveal a lot about the sun structure and dynamics. sound waves are produced which typically oscillate for a period of about five minutes. if we could hear in space we would discover that the sun is in fact incredibly noisy. the sun makes sound. near the surface excites. which you're looking at here is. presents the motion inside the sun that are associated with a particular mood. measuring the frequency of this mood will tell us about the conditions in the sun.

at the max planck institute for solar system research in gottingen scientists are studying coronal mass ejections or c m e's in particular they want to know why these solar eruptions occur with varying frequency over an eleven year cycle in the air we think they result from a dynamo inside the sun but we don't know exactly how it works. the sun is one hundred fifty million kilometers away and it's. incredibly hot the temperature in the core reaches fifteen million degrees celsius as hydrogen nuclei combined to form helium this nuclear fusion has been the source of the sun's heat and light for more than four billion years. to what the sun looks like an evenly shaped ball but in fact it's a rotating and shape shifting gashes mass that generates a chaotic magnetic field the individual magnetic field lines can be seen as loops towering up to eighty thousand kilometers above the surface. of the field lines guide the motion of plasma and hot gases. just might move the magnetic field is constantly changing and twisting that means the magnetic field lines can cross each other that can cause the