Lunar astronauts at risk from solar storms
The proton storm that erupted from a giant sunspot last Thursday might have sickened or killed lunar astronauts had they been caught outside their habitats.
Fortunately, there are no astronauts on the moon right now. And the two-man crew of the International Space Station is well-sheltered from solar storms by the Earth's magnetic field. They were also able to take shelter in the well-shielded Russian service module Zvezda.
For more from NASA on how vulnerable our astronauts will be to nasty "space weather" when they return to the moon, click here.

