The biggest solar flare in this decade

A solar flare is a sudden brightening observed over the Sun's surface or the solar limb, which is interpreted as a large energy release. Solar flares were first observed on the Sun by Richard Christopher Carrington and independently by Richard Hodgson in 1859. X-rays and UV radiation emitted by solar flares can affect Earth's ionosphere and disrupt long-range radio communications.

On 24th January 2012 a severe strongest solar flare radioactive wave combed in the earth atmosphere. NASA declares that it is biggest solar flare after 2003's October. The radioactivity of solar flare may not harmful for human but it disrupt satellite and long-range radio communications. This solar flare light was even visible from South Scotland and North England because of its unusual intensity.

Earth's magnetic field protect from solar flare.