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 ...

CHICAGO -- 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, ...

In the UK, the clocks will advance by an hour on the last Sunday in March. After a lengthy winter with dark evenings, we'll soon witness longer, lighter nights as we approach the spring and summer ...

Scientists have created a clock so precise it could redefine the second. The strontium optical lattice clock is one of the most accurate timepieces ever made, capable of measuring seconds to 19 ...