World's first thorium-229 nuclear clock shows potential for ultra-precise timekeeping and fundamental physics tests.

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Picture a clock ...

When it comes to navigation in outer space, keeping precise time is incredibly important, that's why NASA needs to use ...

Nasa, in collaboration with the European Space Agency (ESA), has launched two state-of-the-art atomic clocks to the International Space Station (ISS) as part of the Atomic Clock Ensemble in Space ...

Scientists have made a major breakthrough that takes us a step closer to developing a nuclear clock — a device that keeps time based on the inner workings of atoms. For the first time, physicists have ...

Watch live as the Bulletin of the Atomic Scientists announces whether the time on the iconic “Doomsday Clock” will change during a press conference. In January 2025, it was set at 89 seconds to ...

For many years, scientists all around the world have been working towards this goal, now suddenly things are happening very fast: it was only in April that a team led by Prof Thorsten Schumm (TU Wien, ...

Watch live as The Bulletin of the Atomic Scientists announces whether the time of the iconic “Doomsday Clock” will change. In January 2024, the Doomsday Clock was reset at 90 seconds to midnight, the ...

Researchers have demonstrated a new optical atomic clock that uses a single laser and doesn't require cryogenic temperatures. By greatly reducing the size and complexity of atomic clocks without ...