Super Hot Bubbles of Plasma

With the help Japan’s Hinode spacecraft, researchers found super-hot bubbles of plasma feed powerful solar storms that can wreak havoc on Earth.Scientists think that these bubbles rise through the sun’s atmosphere, joining with giant “ropes” of magnetism and electric current higher up. The injection of mass and magnetic flux causes these ropes to swell and then burst, as a result in a big explosion which called a coronal mass ejection (CME). Such explosions send huge clouds of charged particles streaking into space. When the clouds hit Earth, they can disrupt satellites and power grids, and can be a dangerous to astronauts on spacecraft.  Scientists hope that the studies can help to better understand how such storms form.

According to scientist have to do more study to know much about such solar storms because the sun ramps up toward peak activity in 2013 or 2014.
source:www.space.com