The clock is ticking on humanity. The Bulletin of the Atomic Scientists has moved its Doomsday Clock forward for 2025, announcing that it is now set to 89 seconds to midnight –— the closest it ...

It’s never a bad time to look at a clock, and one could certainly do worse than this delightful Paper Sunshine Clock by [anneosaur]. The sun-ray display is an interesting take on the analog ...

For more about Holly's Optical Atomic Strontium Ion Clock, check out the OASIC project on NASA's website.- For more about the Longitude Problem, check out Dava Sobel's book, Longitude.