Huge Solar Storm to Shower Earth with Radioactive Particles

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The largest solar storm for seven years is expected to send a shower of radioactive solar particles racing towards Earth at almost 1,400 miles a second this week, according to NASA.

The flare, caused by a huge eruption on the sun's surface on Sunday, is expected to affect GPS systems and other communications when it reaches the Earth's magnetic field on Tuesday..

Solar flares are our solar system's largest explosive events and can last from minutes to hours, according to NASA, releasing up to a billion tons of matter in the process.

NASA says the flare may also spark an unusually large display of auroras, which may be visible at lower latitudes than normal.