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from space.com SAN FRANCISCO -- A pocket of near-Earth space tucked between radiation belts gets flooded with charged particles during massive solar storms, shattering the illusion it was a safe place for satellites.
The safe zone was thought to be virtually radiation-free, a good region in which to deploy satellites so they'd be protected from the potentially debilitating effects of magnetic storms that can slam into Earth at millions of miles per hour within a day of leaving the Sun.
But a new study of a string of severe storms last year debunks the notion. Scientists discussed the work here today at a meeting of the American Geophysical Union.
The once-suspected safe zone is called the Van Allen Radiation Belt Slot. The Van Allen belts are like two donuts of electrons around Earth, all trapped by the planet's magnetic field. The safe zone is a thick circular ribbon of space between the two donuts, from about 4,350 miles (7,000 kilometers) above the planet to some 8,110 miles (13,000 kilometers) up.
Originally posted by jazzgul
well this I figured out myself, but what does it mean - we cannot put more satellites, unless we have to find another place for them? Why do we need to put satellites there??