北極

Fast solar wind is continuing to buffet Earth's magnetic shield tonight (Dec. 22), raising the chances of visible auroras across high latitudes — and possibly into parts of the no… 12月 22, 2025

A new study finds increased activity of transposable 'jumping' genes in polar bears from southeastern Greenland, linking rising temperatures to rapid shifts in DNA regulation that… 12月 15, 2025

Researchers report nitrogen fixation occurring under Arctic sea ice—primarily by non-cyanobacterial microbes—concentrated at melting ice edges. Rising ammonia availability as ice … 11月 15, 2025