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 ...

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.

The Bulletin of the Atomic Scientists was founded at the University of Chicago to warn the public about the dangers of nuclear technology. The nonprofit now focuses on initiatives like climate change ...

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 ...

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

The precision of the nuclear clock is predicted to surpass that of atomic clocks in two to three years, and should also be ...