You can stop a clock from ticking, but it's a lot harder to figure out how to stop humanity's relentless march toward self-annihilation.
Atomic scientists have moved the ‘Doomsday Clock’ a second ahead, bringing it closer to midnight than it ever has been in its ...
Editor’s Note: CNN’s 5 Things newsletter is your one-stop shop for the latest headlines ... Scientists created the Doomsday Clock in 1947 as a symbolic gauge of how close humanity is to ...