Felix Baumgartner, the fearless extreme sportsman behind many legendary stunts, has died. He was 56. According to the ...

The risk of nuclear war is arguably higher than it's been since the 1980s, due to ongoing conflicts and tensions. So what would happen if a nuclear bomb was dropped on New York City?

Historians have put together an app that guides users to significant sites around the city, just in time for the 250th anniversary of the United States’ founding.

Experts fear Russia could emply battlefield nuclear weapons in Ukraine after being given 50 days to stop the fighting by the ...

The House is expected to vote late Thursday to approve President Donald Trump's request to claw back about $9 billion for ...