As Trump continues to express his want for Greenland, here's a look at who owns the island and why Donald Trump wants the US to control it.

The disillusionment that at least partly motivated the shocking acts in New Orleans and Las Vegas is a force in Trump’s inner circle too, and it threatens to undermine America’s role in the world ...

Spacecraft beams back riveting photos after buzzing Mercury’s north pole - Some of the best close-up photos yet of Mercury ...