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The rock samples brought back from the Moon in December by China's Chang'e-5 mission were really young. It's all relative, of course, but the analysis shows the basalt material - the solidified remnants of a lava flow - to be jus...
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Do you have a favourite emoji? Maybe it's the wink or the face rolling around with tears of laughter. Perhaps if you're feeling slightly more sardonic, it's the smiling face with jazz hands. With more than 3,000 to choose from, t...
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