Man is returning to the moon - and with him old rivalries and new ambitions. Europe wants to have its say; Germany wants to ...

A small asteroid spotted only hours before it struck the atmosphere has become a touchstone for how fragile, and how powerful ...

A mysterious force called Dark Energy might be changing, in a way that challenges our current understanding of the nature of ...

Astronaut Butch Wilmore discusses surviving nine months in space and how his faith guided him through the ordeal on ‘Fox News Sunday.’ ...