Alex Sundby is a senior editor at CBSNews.com. In addition to editing content, Alex also covers breaking news, writing about crime and severe weather as well as everything from multistate lottery ...

At the dawn of the nuclear age, scientists created the Doomsday Clock as a symbolic representation of how close humanity is to destroying the world. On Tuesday, nearly eight decades later, the clock ...

Time is almost up on the way we track each second of the day, with optical atomic clocks set to redefine the way the world measures one second in the near future. Researchers from Adelaide University ...