The military's northernmost base, located north of the Arctic Circle in Greenland, doesn't see the Sun for several months each year.

The vortex appears to be part of a huge filament of solar plasma that the space agency says broke away from the Sun’s surface and is now circling the north pole like a tornado. Unfortunately ...

Explaining the science behind the northern lights, and why 2025 could bring more opportunities to see them. #ExtremeNature ...

The north pole of Mars is slowly sinking under the weight of an ice cap that only formed within the past few million years. And, in the process, it's telling us something about what the planet's ...