SCIENCE IN THE NEWS DAILY
Magnetic-Shield Cracks Found; Big Solar Storms Expected
from National Geographic News
An unexpected, thick layer of solar particles inside Earth's magnetic field suggests there are huge breaches in our planet's solar defenses, scientists said.
These breaches indicate that during the next period of high solar activity, due to start in 2012, Earth will experience some of the worst solar storms seen in decades.
Solar winds—charged particles from the sun—help create auroras, the brightly colored lights that sometimes appear above the Earth's poles. But the winds also trigger storms that can interfere with satellites' power sources, endanger spacewalkers, and even knock out power grids on Earth.
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