New devices promise to help realign your body’s circadian rhythm for better health, but do they work? Here’s what the experts say.

Sunita Williams experiences 16 sunrises and sunsets daily on the ISS, orbiting Earth every 90 minutes at 28,000 km/h. Her ...

Astronauts also rely on precise atomic clocks to stay synchronized with Earth-based teams, which is especially crucial for navigation during deep-space missions. Sunita Williams, a NASA astronaut who ...

In this video, witness the creation of a beautifully crafted wall clock made from wood and epoxy, with an LED backlight that gives it a solar eclipse effect. From designing the shape to adding the ...

Here’s a design for a split-flap clock that doesn’t do it the usual way. Instead of the flaps showing numbers , Klapklok has ...

Astronauts on board the International Space Station (ISS) experience a surprising and unusual variation of day and night.

But a study published in Nature last year suggested that in fact, climate change might be affecting timekeeping in general.

Why are there atomic clocks but no nuclear clocks? After all, an atom's nucleus is typically surrounded by many electrons, so ...

Researchers have developed a new ultrafast laser platform that generates ultra-broadband ultraviolet (UV) frequency combs ...

A new ultrafast laser platform generates ultra-broadband UV frequency combs that could enhance high-resolution atomic and ...

A goofy-seeming sci-fi subgenre holds useful lessons about managing technology in an accelerating age.