For about 40 minutes Monday night, four astronauts will be completely unreachable behind the Moon. Here's what happens when Mission Control goes silent.

A reported strike near Iran’s Bushehr nuclear power plant has intensified fears of a wider conflict between the United States and Iran, even as the search for a missing American airman stretched into a second day following the downing of U.S. fighter...

ABC News’ chief White House correspondent Mary Bruce explains the order on “This Week.”

After Duke’s heartbreaking Elite Eight exit, major Cameron Boozer news drops just before the national championship.

A former Colorado Avalanche player and coach got the heave-ho on Sunday, leaving behind his current coaching job with four games to go in the season.