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Mission to Mars: The Radiation Problem
NASA wouldn’t opt to expose astronauts to a 19 percent increased risk of cancer, but there’s no telling what a reality TV show would do
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The List: Seeing Red? Celebrate Mars Day at Air and Space
Celebrate Mars Day this Friday at the National Air and Space Museum
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An ocean on Mars. An Earth-like planet light years away. The evidence is mounting, but are astronomers ready to say we’re not alone?
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The president envisions a future human mission to Mars, but medical researchers say surviving the journey is no spacewalk
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