The Doomsday Clock, a symbolic tracker that represents the likelihood of human-made destruction, was updated Tuesday to 90 seconds to midnight—the closest to global catastrophe it’s ever been. It was the first time the clock had been updated since Russia invaded Ukraine on Feb. 24. Read more about the Doomsday Clock: https://time.com/6249856/doomsday-clock-catastrophe-ukraine/ Subscribe to TIME’s YouTube channel ►► http://ti.me/subscribe-time Subscribe to TIME: https://ti.me/3uwZBtG Get the day’s top headlines to your inbox, curated by TIME editors: http://ti.me/the-brief Follow us: Twitter: https://ti.me/3VZVRMQ Facebook: https://ti.me/3uzo7KJ Instagram: https://ti.me/3ux56s9