We love clocks, but we especially love unusual timepieces that aren’t just about showing the hour of the day. [Simone Giertz] built a flip clock moon phase tracker for a friend. While in Egypt for ...

Watch the moon phases and libration for 2024, as seen from Earth's Northern Hemisphere, in this time-lapsed animation that is ...

Phase-coherent lasers are crucial for many precision tasks, including timekeeping. Here on Earth the most stable optical oscillators are used in e.g. atomic clocks and many ultra-precise scientific ...

Sleep researcher Leandro Casiraghi's findings suggest sleep cycles are synchronized with the moon's phases whether we're aware of the moon's phase, or even see it. Exactly why this is happening is ...