Brain condition related to long-term spaceflights needs more attention, data

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More people are poised to explore space than ever before; those who do will experience the effects of microgravity on the human body.
via Science Daily
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Environmental protection in outer space?

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Should regulations for environmental protection be valid beyond our solar system? Currently, extra-terrestrial forms of life are only deemed worth protecting if they can be scientifically investigated. But what about the numerous, presumably lifeless planets whose oxygen atmospheres open up the possibility of their settlement by terrestrial life forms?
via Science Daily
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