The North Pole was above freezing on Sunday after an extreme winter warming event caused temperatures to climb more than 36 F ...

As sunspots emerge on the sun's surface close to its equator, their orientations will match the old magnetic field, while sunspots forming closer to the poles will have a magnetic field matching the ...

A spacecraft has sent back some of the most detailed and breathtaking images of Mercury's north pole, shedding new light on the mysterious, shadowy regions of the small planet closest to the Sun.

Since 1979, the Arctic has warmed four times faster than the global average. This is an issue because the region acts as a refrigerator for the rest of the world — it helps cool the planet ...

Luckily in Svalbard — a remote Norwegian archipelago in the Arctic Ocean that's as close to the North Pole as most people ... it — such as not seeing the sun again until March 8, when it ...

Craters at Mercury's north pole are visible just left of the "terminator ... almost perpendicular to its plane of orbit around the sun—the rims of all four of these polar craters cast permanent ...