The cosmic superstructure Quipu is more than 13,000 times the length of the Milky Way, and its mass is 200 quadrillion times that of the sun, according to preliminary research February 11, 2025 4: ...

Xi Jinping built the smart city of Xiongan as a showcase for China’s technological prowess. But WSJ’s Jonathan Cheng finds it remains largely empty, raising questions about the limits of Xi’s rule.