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"Each day seemed to have its own set of challenges," Shepherd said during a recent NASA panel discussion with his crewmates.

"Facebook and Google either comply with our laws or they don't do business in Australia," Sims said.

"Data show that less than 6 percent of the academicians at the Chinese Academy of Sciences and Chinese Academy of Engineering, are women. There is hardly any female presence in the top echelons of scientific research," Lan said.

"DuPont is thrilled about the fact that China has been encouraging domestic companies to create more high added-value in their product lines, as well as promote sustainable development," said Dembek, who is also the group's senior vice-president, noting the nation's demand for high-end materials therefore will remain attractive for global players.

"Do you think most of those guys and women are suckers?" Biden asked.