Researchers have revealed the persistence of volcanic activity on the far side of the moon, from 4.2 to 2.8 billion years ago ...
ZHUHAI, Guangdong, Nov. 17 (Xinhua) -- China's homegrown C919 jetliner and Y-20 transport aircraft are displayed side by side at the ongoing China Airshow in Zhuhai, south China's Guangdong Province.
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