The symbolic Doomsday Clock has been maintained by the Bulletin of the Atomic Scientists since 1947.

Every football fan knows the title game won't start exactly at the 7:30 time it's supposed to. Here's a complete guide of the game's projected start.

Ask someone on Earth for the time and they can give you an exact answer, thanks to our planet's intricate timekeeping system, built with atomic clocks, GPS satellites and high-speed telecommunications ...