Saturday, April 24, 2010

Mini Magnetic Shield Found on the Moon

For the first time, scientists have observed a mini magnetosphere on the moon—a magnetic field "bubble" that protects part of the lunar surface from punishing solar radiation.

This mini magnetosphere lies near the moon's equator, where sunlight reaches only half the time. This would limit the power available to charge solar arrays, should humans ever return to the moon.

But there's evidence other magnetospheres might lie in more favorable landing sites, offering some radiation protection for astronauts.

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