The Doomsday Clock is a global warning of how close we are to the apocalypse. This is what you need to know before it reaches ...
Circadian clocks control physiological processes and behavior in virtually all living organisms. Now an international research team has created a detailed map of the internal clock in the brain of the ...
Atomic clocks are so accurate that they have an error rate of approximately 1 second in up to 100 million years.