While the U.S. federal government reopens, the damage -- institutional, economic and psychological -- is lasting. The end of the record-long shutdown in no way warrants the restoration of functioning ...

WASHINGTON, Nov. 14 (Xinhua) -- The longest U.S. government shutdown in history has finally been ended, yet the harm done to the country has not come to a full stop.

北极海冰覆盖面积正在迅速减少，导致剩余冰层融化加速，并改变了营养物质的有效性。在华盛顿大学（University of Washington）领导的一项研究中，研究人员展示了来自太空的粒子如何帮助重建过去3万年的冰层状况。（图片来源：Bonnie Light/University of Washington） ...