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"Dust is most likely the reason why the star's light appears to dim and brighten," said lead author Tabetha Boyajian, assistant professor of physics and astronomy at Louisiana State University, for whom "Tabby's Star" is nicknamed.

"Europe is going to return to where it was before its rise in the 18th century, a place on the western end of the Eurasian landmass. It will engage more eastward. America, on the other hand, is going to become more divided and inward-looking and is in very serious decline," he said.

"Everything we use and need can be improved by 5G. It will help us meet targets such as the UN's Sustainable Development Goals and European Commission objectives on, for example, climate change and on road safety. For this to happen, choices have to be made. Choices of how to reconcile European values with revolutionary new technologies that are about to impact profoundly on our way of living," said Liu.

"Due to overnight snow and strong winds expected throughout the day, airlines at O'Hare International Airport have canceled nearly 470 flights," the airport management tweeted.

"Each machine costs more than 30,000 yuan (,660), and they are purchased or rented by local authorities or site owners," said Li Liaoyuan, an official with a subdistrict office in Yubei.