MEXICO CITY, June 1 (Xinhua) -- At least 12 people died and three were injured after a fire broke out at a rehabilitation center in San Jose Iturbide, a city in the central Mexican state of Guanajuato ...

NANNING, May 25 (Xinhua) -- Rescue teams have found three more bodies, bringing the death toll to six following the mountain torrent that struck a village in south China's Guangxi Zhuang Autonomous ...

通过德国 254 公里电信网络发送的量子信息是利用现有商业电信基础设施进行相干量子通信的首次已知报告。 利用光波的相干性（它们可预测地相互作用的潜力）可以扩展量子通信的范围，但由于需要专用设备（例如低温冷却器），可扩展性受到限制。