What is the Doomsday Clock? |
|
The Doomsday Clock just moved to 90 seconds, which is the closest to midnight it’s ever been. What is it, and what does that mean? #doomsdayclock #atomicphysics #politics #peace #globalnews #globalsecurity #covind19 #ukraine #ukrainerussia #climatechange #peacemovement #antiwar #shorts
|