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By Science News, 12:17 PM September 8, 2011

Japan’s Hayabusa spacecraft has returned to Earth with the first-ever scrapings taken from an asteroid. Find out what the specks of dust reveal in “Asteroid sample nails meteorite source.”

A young elephant shows off its ability to have an “aha” moment by finding a way to reach fruit just out of reach. Learn more and see a video of the problem solver in action in “Young elephant struck by idea.”

Human ancestors may have picked up genes that impart an immune system ...

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