During the Cold War, these sites were designed to blend into the landscape, to be just another anonymous spot in the vast Arizona desert. The neighbors probably thought it was a water treatment ...

Some of the universe's most extreme explosions leave behind almost no trace. The original explosion is unseen, but our observations can capture the long-lived echo it leaves behind as the shock front ...

In July 1969, as Apollo 11 closed in on the Moon, the Soviet N1 moon rocket collapsed back onto its launch pad and unleashed one of history’s most powerful non-nuclear explosions. From declassified ...

Iran’s military capabilities were badly degraded by 12 days of Israeli and U.S. strikes last year. But analysts say it could still inflict pain on American forces and allies in response to another U.S ...

America's 450 nuclear missile silos exist, at least in part, to be destroyed in a nuclear attack. USA TODAY breaks down the debate over their future.

Scientific knowledge about the damaging effects of nuclear-weapons testing helped to end such tests. Those findings haven’t changed.

Astronomers suspect the heart of the Milky Way may be hiding a big secret: a rapidly spinning, highly magnetic, neutron ...