A Canadian startup called Xanadu has built a photon-based quantum computer it says should easily scale up. What will really matter in the long run? That’s the question we tackle each year as we ...

Secretary of State Marco Rubio says President Donald Trump's desire to acquire Greenland and retake control of the Panama ...

Leah Messer opens up about feeling conflicted in letting Ali assert her independence when the teen, who lives with muscular dystrophy, resists using her wheelchair.