HealthThe covid-19 virus gets into the brain – what does it do there? We now know that covid-19 can cause neurological symptoms, ranging from brain fog and headaches to strokes. Research is beginning to reveal how this happens and hint at better treatments Insight
EnvironmentWhat Alaska's record-breaking wildfires mean for the Arctic's future Wildfires in Alaska have already burned more than three times as much territory as usual, and fire season isn't over – the environmental effects could last decades Insight