The sun never sets in Greenland — not over the summer, at least. They call it the “midnight sun”: a natural phenomenon of 24-hour sunlight caused by the tilting of the Earth. At its lowest point, the ...

The Arctic Sun has long since dipped below the horizon, plunging the world into 24 hours of darkness. The region stretching across northern Norway is a vital indicator of the health of our planet.

The sun will set at 1:36 p.m. in Utqiaġvik, Alaska, but won't rise for another 65 days as the polar night sets in.

Equipment to help monitor climate change has been set up in the Arctic Circle by researchers from the University of Leicester. The team from the National Centre for Earth Observation travelled to the ...