In a first, researchers from the U.S. and Germany excite Thorium-229 in opaque material, advancing optical nuclear clocks.

For decades, atomic clocks have provided the most stable means of timekeeping. They measure time by oscillating in step with ...

Researchers develop a method to count thorium-229 nuclear ticks, paving the way for high-precision nuclear clocks and sensors ...

A research team from the University of California Los Angeles (UCLA), Ludwig Maximilian University of Munich (LMU), and Johannes Gutenberg University Mainz (JGU) has succeeded in exciting the atomic ...

Nuclear clocks are a technology researchers have been working toward for decades. New research in theoretical physics brings them closer to reality.

In 2008, a team of UCLA-led scientists proposed a scheme to use a laser to excite the nucleus of thorium atoms to realize extremely accurate, portable clocks. Last year, they realized this ...

Researchers used atomic clock laser methods and a helper calcium atom to control a calcium monohydride molecule, expanding ...

A revolutionary achievement could pave the way for smaller, more efficient nuclear clocks. Last year, a research team led by UCLA achieved a milestone scientists had pursued for half a century. They s ...

Being on the surface of a sizable planet moving at high speed through space, spinning around a yellow star and on its axis, ...

Even as quantum navigation emerges as a legitimate alternative to satellite-based navigation, the satellites themselves are ...

AI is already sufficiently robust that it introduces new global risks and exacerbates existing threats. Its development is ...

SHANTI has drawn considerable critique. Opponents argue the shift toward private sector involvement puts corporate profit motives ahead of public safety.