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To measure the passing of time, every clock works by counting oscillations of some reference frequency—whether it's the swinging pendulum of a clocktower, or the vibrations of an electrified quartz ...

Time crystals are an oddity of quantum physics, but new calculations show that these bizarre materials could be useful for building very accurate clocks. All crystals are defined by repetition – ...

All living creatures are affected by the cycles of celestial objects. Humans have always been locked into the rhythms of sunrise and sunset, the phases of the Moon, and the seasons. We left some of ...

The "Doomsday Clock" was set to 85 seconds to midnight on Jan. 27 — marking the closest it has been to the time that represents apocalypse in its history. “The Doomsday Clock’s message cannot be ...

The keepers of the “Doomsday Clock” on Tuesday moved the symbolic countdown to 85 seconds till midnight and warned that the world has never been closer to destruction on the metaphorical timepiece.

Wars, climate change, disruptive technologies and the rise of autocracy over the past year prompted scientists to set the clock at 85 seconds to midnight. Wars, climate change, disruptive technologies ...

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Earth is closer than ever to global catastrophe as major world powers grow increasingly confrontational and cooperative efforts to reduce existential risks break down, a group of scientists warned ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. The Bulletin of the Atomic Scientists members, from left, Jon B. Wolfsthal, Asha M. George and Steve Fetter reveal the Doomsday ...