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NASA vs. cigarettes—a numbers game

People often criticize the amount of money spent on space exploration. Sometimes it's well-meaning friends and family who say that that money is wasted, and would be better spent on solving problems here on Earth. In fact, ...

dateNov 17, 2015 in Space Exploration
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What is tidal locking?

The moon is tidally locked to the Earth, which means that it always shows one face to our planet. In fact, this is the case for most the large moons in the solar system. What's the process going on to make this happen?

dateNov 17, 2015 in Space Exploration
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