From a design perspective, the Doomsday Clock is remarkably economical. Four dots. Two hands. The universal language of ...

Nuclear weapons, climate change and biological threats are the biggest concerns.

At this point, atomic clocks are old news. They’ve been quietly keeping our world on schedule for decades now, and have been through several iterations with each generation gaining more accuracy. They ...

Clocks on Earth are ticking a bit more regularly thanks to NIST-F4, a new atomic clock at the National Institute of Standards and Technology (NIST) campus in Boulder, Colorado. This month, NIST ...