Thursday, August 11, 2011

Solar flares, coronal mass ejections (CMEs)

Solar flares are like large explosions found on sun that send light, energy and high speed particles into space. These flares are found associated with large solar magnetic storms that are known as (CMEs) coronal mass ejections. The number of such flares usually increases in every 11 years, and currently sun is moving towards another, that is likely to be in 2013. This means that more of the flares will be coming in the times to come, some may be small and some may be big enough to send their harmful  radiation to the Earth.

If these will be directed at Earth, such CMEs and the associated flares will result in very long lasting radiating storms that will harm communication system, power grids, satellite systems, and various land-based technologies. For example,: X-class flares occured on 5th Dec, 2006 and 6th Dec, 2006, triggered the CME that had badly interfered with the GPS signals which used to be forworded to land-based signal receivers.