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Wirelessly postedPerhaps or your Grandson.... They haven't found out how to protect them from space radiation yet. Reading the article, NASA only allow astronauts to be out and exposed for a limited of time. They are still trying to figure out how to prevent such exposures.
Wirelessly posted
Perhaps or your Grandson.... They haven't found out how to protect them from space radiation yet. Reading the article, NASA only allow astronauts to be out and exposed for a limited of time. They are still trying to figure out how to prevent such exposures.