The Doomsday Clock now stands at 89 seconds to midnight, the closest to catastrophe in its nearly eight-decade history. Here's a look at how — and why — it's moved.

When was the Doomsday Clock farthest from midnight? In 1991, with the end of the Cold War, the United States and the Soviet Union signed the Strategic Arms Reduction Treaty, ...

When was the Doomsday Clock farthest from midnight? In 1991, with the end of the Cold War, the United States and the Soviet Union signed the Strategic Arms Reduction Treaty, ...

The Doomsday Clock now stands at 89 seconds to midnight, the closest to catastrophe in its nearly eight-decade history. Here's a look at how — and why — it's moved.

The Doomsday Clock now stands at 89 seconds to midnight, the closest to catastrophe in its nearly eight-decade history. Here's a look at how — and why — it's moved. ... The clock was its farthest from ...

The clock was its farthest from midnight — a sizable 17 minutes — in 1991, with the end of the Cold War and the signing of the Strategic Arms Reduction Treaty between the U.S. and Soviet Union.

The Doomsday Clock now stands at 89 seconds to midnight, the closest to catastrophe in its nearly eight-decade history. Here's a look at how — and why — it's moved. The Doomsday Clock has never been ...