The pictures show the Sun unleashed a flare that fell and covered an area similar to almost half of the solar surface.
“The Sun suffered on June 7th, a middle strength solar ejection (M-2) with a visually spectacular coronal mass ejection (CME). This storm has a significant amount of high energy protons above 100 megaelectronvoltios (MeV), something that had not occurred since December 2006,” the institution said in a statement.
The U.S. Weather Service reported that the explosion resulted in radiation levels not seen since 2006.
A NASA spokesman warned of possible disturbances in the activity of the GPS satellites, as well as communications and power grids.
According to the World Meteorological Organization, the sun is entering a more active phase of a cycle of 11 years, and would peak in 2013.
Source: AFP, Reuters