The northern lights are best viewed around the Earth's magnetic poles, in areas without light pollution, in the Southern and ...

The northern lights, also known as the aurora borealis, could be visible across 18 US states on Wednesday night into Thursday ...

The two neighbours and long-time allies have each long laid claim to the island and surrounding water, where the US state of ...

President Trump's still talking about buying Greenland, declining to rule out force to acquire the world's largest island.

The deep roots of Earth's oldest continents have long been thought to be unshakable. But a new seismic discovery suggests that even these stable landmasses can change. Beneath the center of North ...