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A crisp African dawn is breaking overhead, and Zibo Mounkaila is on the back of a pickup truck bounding across a sparse landscape of rocky orange soil.
A Chinese scholar persecuted during the Cultural Revolution for smuggling a rare collection of mushrooms out of China before World War II was honored Saturday when the collection was returned more than 70 years later.
A Seattle team has collected a $900,000 prize in a NASA-backed competition to develop the concept of an elevator to space - an idea spurred by science fiction novels.