Question
NASA scientists announced that the Curiosity rover found direct evidence for an ancient stream-bed in Gale Crater, suggesting an ancient "vigorous flow" of water on Mars. In particular, analysis of the now dry streambed indicated that the water ran at ...
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Question
The human brain has been considered to be the most complex organ in the body. It is still a mystery to scientists how it works and what it does. The human brain can only use about ...
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