The Doomsday Clock tells us how close we are to the end of times — an early symbol of the impending nuclear apocalypse. | Vox

The Watchmen world collides with the DC Universe in Doomsday Clock, the new graphic novel by Geoff Johns and Gary Frank. | DC

4.7K views · 141 reactions | Atomic scientists set the 'Doomsday Clock' in 2023 to 90 seconds to midnight – closer than ever before to the threat of complete annihilation of humanity. But what is the Doomsday Clock? https://reut.rs/3kHEYtf | Reuters | Facebook

Every Doomsday Scenario Explained