Posts

Showing posts from August 19, 2011

Sun storms 'could be more disruptive within decades'

Image
By Judith BurnsScience reporter, BBC News
Solar storms may be more powerful at times of middling solar activity Related StoriesSunspot twist sparked huge flareSun eruptions set to reach EarthSun unleashes huge solar flare Within decades, solar storms are likely to become more disruptive to planes and spacecraft, say researchers at Reading University. The work, published in Geophysical Research Letters, predicts that once the Sun shifts towards an era of lower solar activity, more hazardous radiation will reach Earth. The team says the Sun is currently at a grand solar maximum. This phase began in the 1920s - and has lasted throughout the space age. Mike Lockwood, professor of space environment physics at Reading, said: "All the evidence suggests that the Sun will shortly exit from a grand solar maximum that has persisted since before the start of the space age. "In a grand solar maximum, the peaks of the 11-year sunspot cycle are larger and the average…