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It has been 35 years since humans last walked on the moon,but there has been much recent discussion about returning(and regular readers of this websiteknow why). However, there are concerns about the radiation danger forastronauts during long missions on the lunar surface.

A significant part of that danger results from solar storms,which can shoot particles from the sun to Earth at nearlythe speed of light and can heat oxygen in the Earth’sionosphere and send it in a hazardous stream toward the moon.
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