Time travel paradoxes like the grandfather problem and causal loops show how the universe may resist changes or trap actions ...

ORLANDO, Fla. — Starting on Monday, a new travel ban on 12 countries is going into effect after President Donald Trump announced the embargo last week citing security risks. This comes in the midst of ...

Pro Football Hall of Fame quarterback Peyton Manning, former NFL quarterback Eli Manning and 23-time Olympic Gold Medalist Michael Phelps react to the Detroit Lions' 4-yard trick-play touchdown from ...