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A Tiny, 'Cold' Star Has Released One of The Most Powerful Superflares Ever Seen 8 JANUARY 2021 As far as stars go, SDSSJ013333 resembles the quiet kid in school nobody remembers. Small, dim, and unremarkable, it does little to gain attention. That is until it throws a whopping big tantrum.   Days before 2018 drew to a close, the Ground-based Wide Angle Camera (GWAC) at Xinglong Observatory in Beijing alerted researchers to a burst of light worth paying attention to. After hitting its peak in just under a minute, the entire event – a solar flare dubbed GWAC 181229A – lasted a matter of ...

BEIJING (China Daily/ANN): Chinese scientists have created the world's first integrated space-to-ground quantum network that can provide reliable, ultrasecure communication between more than 150 users over a total distance of 4,600km across the country, according to a study published in the journal Nature on Thursday (Jan 7).

12:32 AM MYT HEFEI, Jan. 7 (Xinhua) -- Chinese scientists have set up an integrated quantum network that combines 700 fiber and two ground-to-satellite links and realized quantum key distribution between more than 150 users over a combined distance of 4,600 km. Led by Pan Jianwei from the University of Science and Technology of China, the research was conducted by a group of scientists over the past few years. The research paper has been published in the journal Nature online. The network consists of four quantum metropolitan-area networks (QMAN), including Beijing, Jinan, Hefei and ...