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Andy Weir

And in the Wisconsin city of Kenosha, in upheaval since a white police officer shot 29-year-old African American Jacob Blake in front of his three young sons, the Republican found his mark.

And even with her smartphone in hand, Wen couldn't figure out how to scan the square-shaped Quick Response code－a mix of black and white pixels－to register at a health checkpoint.

Analysts say commercial space activity could help lower costs and increase the efficiency of space activities, and accelerate technology development.

Andreas Michaelis, state secretary of Federal Foreign Office of Germany, said: "China is Germany's biggest partner in Asia as well as in the world on economy. In the backdrop of rising trade protectionism globally, this dialogue is of special significance nowadays."